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by colebert
Fri May 29, 2015 6:25 am
Forum: Announcements
Topic: v6.29 released
Replies: 193
Views: 49644

Re: v6.29 released

RE: SNMP OID FIX I upgraded from 6.03 (ish) to 6.28 a couple weeks ago on six different NetMetal5 devices. Overall-CCQ OID [.1.3.6.1.4.1.14988.1.1.1.3.1.10.8] began reporting as zero (0). Tonight I upgraded to 6.29 on one of the affected devices. This upgrade did not resolve the problem. /interface ...
by colebert
Sat Aug 16, 2014 11:58 pm
Forum: General
Topic: v6.17 SNMP - Interface Stats
Replies: 56
Views: 16882

Re: v6.17 SNMP - Interface Stats

there is a problem with OID 1.3.6.1.2.1.4.21 - there is a bug, we will work on that. Would really appreciate CCQ values from wireless registration table being available via SNMP while you're there please! What's wrong with .1.3.6.1.4.1.14988.1.1.1.3.1.10.x OID? mtxrWlApOverallTxCCQ 1.3.6.1.4.1.1498...
by colebert
Tue Aug 12, 2014 3:04 pm
Forum: General
Topic: v6.17 SNMP - Interface Stats
Replies: 56
Views: 16882

Re: v6.17 SNMP - Interface Stats

I query specific 1.3.6.1.2.1.4.21 OIDs to determine if my network is in failover to an alternate path. Normally the OID will report router x.x.x.x is nexthop except when a link is down and OSPF has converged a new path. In that case it will report something else and my SNMP monitor will alarm.
by colebert
Mon Aug 11, 2014 4:37 pm
Forum: General
Topic: v6.17 SNMP - Interface Stats
Replies: 56
Views: 16882

Re: v6.17 SNMP - Interface Stats

I was querying 1.3.6.1.2.1.4.21.1.7.****** (ipRouteNextHop)

All ipRouteNextHop are missing. I can still walk the tree and see many OIDs, just not these. Walking the tree on v5, nothing is missing.
by colebert
Mon Aug 11, 2014 4:16 pm
Forum: General
Topic: Viewing route info via SNMP
Replies: 2
Views: 647

Re: Viewing route info via SNMP

I just upgraded a RB750 from v5 to v6. I also have lost this functionality. The OID is 1.3.6.1.2.1.4.21.1.7 - ipRouteNextHop. I can confirm they exist on ROS v5 but not on ROS v6. I walked the entire tree and even added the Mtik MIBs and couldn't find a credible replacement. I really need this funct...
by colebert
Wed Apr 23, 2014 7:57 pm
Forum: Wireless Networking
Topic: help me
Replies: 6
Views: 998

Re: help me

It looks like he's asking why his laptop connects to the server OK when it is hardwired but does not work when it is connected wirelessly.
by colebert
Tue Apr 22, 2014 8:40 pm
Forum: Wireless Networking
Topic: help me
Replies: 6
Views: 998

Re: help me

The picture is something but you need to put IP addresses on the picture, too.
by colebert
Tue Apr 22, 2014 4:36 pm
Forum: Wireless Networking
Topic: US FCC to Relax Rules in the 5 GHz UNII-1 Band
Replies: 6
Views: 3136

Re: US FCC to Relax Rules in the 5 GHz UNII-1 Band

Thank God they didn't eliminate the unlimited antenna gain in 5.8GHz. My entire network (9 hops) is based on MetalHPs/XR5s & 10ft waveguide fed dishes.
by colebert
Sun Mar 30, 2014 11:50 am
Forum: RouterBOARD hardware
Topic: Cisco Gigabit Switch + RB1100AH = Hopeless?
Replies: 4
Views: 1297

Re: Cisco Gigabit Switch + RB1100AH = Hopeless?

Cisco IOS Software, C3750 Software (C3750-ADVIPSERVICESK9-M), Version 12.2(46)SE, RELEASE SOFTWARE (fc2)

Thanks for the reply!
by colebert
Sat Mar 29, 2014 3:32 pm
Forum: RouterBOARD hardware
Topic: Cisco Gigabit Switch + RB1100AH = Hopeless?
Replies: 4
Views: 1297

Re: Cisco Gigabit Switch + RB1100AH = Hopeless?

9. Shrine to Normis
10. Email to Putin requesting no Latvian annex.
Those 2 usually help me, no idea why its not working for you.
Could the two UBNT picostations I have in my spare parts drawer be counteracting it?

Will throw them away if it helps.
by colebert
Sat Mar 29, 2014 12:58 pm
Forum: RouterBOARD hardware
Topic: Cisco Gigabit Switch + RB1100AH = Hopeless?
Replies: 4
Views: 1297

Cisco Gigabit Switch + RB1100AH = Hopeless?

I'm trying to get ANY port on my RB1100AH to work @ full-duplex gigabit. I have C3750G-24T switches and no amount of workaround will get the two devices working together at gigabit rates. I have tried: 1. Hardcoding RB1100 and C3750 both to gigabit 2. "speed 1000" & "nonegotiate" on C3750 3. Port1, ...
by colebert
Sat Mar 29, 2014 12:45 pm
Forum: General
Topic: v6.11 released
Replies: 260
Views: 79995

Re: v6.11 released

Another downvote for the new "dropbox" interface. It's bad.

I downgraded to get back the old look.
by colebert
Sat Aug 31, 2013 6:25 pm
Forum: Wireless Networking
Topic: Fiber interface with 5ghz solution?
Replies: 11
Views: 2372

Re: Fiber interface with 5ghz solution?

How far out before we see a 5ghz solution with an SFP port? We have some sites on FM towers that can't go past 10BT ethernet.
Seriously this look old but what is 10BT ethernet?
http://en.wikipedia.org/wiki/10BASE-T
by colebert
Mon May 27, 2013 1:16 pm
Forum: Wireless Networking
Topic: Metal 2SHPn issue
Replies: 9
Views: 1611

Re: Metal 2SHPn issue

OK then.
by colebert
Mon May 27, 2013 1:14 pm
Forum: RouterBOARD hardware
Topic: Mikrotik METAL Radio Failure & Overheating
Replies: 4
Views: 1296

Re: Mikrotik METAL Radio Failure & Overheating

Also, I can disable the radio entirely and problem unit stays at 50C. I am saying the overheating is a symptom of another problem which can affect these units. I like them but 2 out of my original 6 have died with the exact same problem in different locations. Yes, of course I will be contacting the...
by colebert
Mon May 27, 2013 1:06 pm
Forum: RouterBOARD hardware
Topic: Mikrotik METAL Radio Failure & Overheating
Replies: 4
Views: 1296

Re: Mikrotik METAL Radio Failure & Overheating

OK, Normis. In my situation it is overheating.

The units live happily and contently at 37-40C for months. Then when they decide to go crawl in a hole and die the temp goes right to 50C and the radio quits working.
by colebert
Mon May 27, 2013 12:58 pm
Forum: Wireless Networking
Topic: Metal 2SHPn issue
Replies: 9
Views: 1611

Re: Metal 2SHPn issue

Seeing that the only visible device is with very weak signal, it could be possible your Metal has some problem. Otherwise, have you configured anything in the scan-list? Thank for reply... I think problem with receiver :( Go to /System Health and tell us the temperature of your unit. I have had pro...
by colebert
Mon May 27, 2013 12:37 pm
Forum: RouterBOARD hardware
Topic: Mikrotik METAL Radio Failure & Overheating
Replies: 4
Views: 1296

Mikrotik METAL Radio Failure & Overheating

I've now had two out of six Mikrotik Metal 5GHz fail. All my units are kept indoor climate controlled (20-24C) area connected to antennas through Waveguide. One day my system reports in failover. Trace problem to a link consisting of two metals. After troubleshooting I replace one of the metals and ...
by colebert
Mon May 13, 2013 6:43 pm
Forum: Wireless Networking
Topic: Mikrotik Wireless Controller
Replies: 54
Views: 17170

Re: Mikrotik Wireless Controller

Wireless IPS to detect rogue access points across a fleet of APs like Sonicwall does would be a nice feature.
by colebert
Fri May 10, 2013 9:42 pm
Forum: General
Topic: Post-NAT Bandwidth management
Replies: 2
Views: 685

Re: Post-NAT Bandwidth management

The DSCP values would be a reasonable choice. You can use mangle on the 1100 to change it to certain values to tag the traffic and then mark the connection and packets in the 750 based on those tags so you can shape the traffic and set the DSCP back to it's proper value. Awesome. I'll try that this...
by colebert
Wed May 08, 2013 5:45 pm
Forum: General
Topic: Post-NAT Bandwidth management
Replies: 2
Views: 685

Post-NAT Bandwidth management

Wanted to get some quick advice about doing bandwidth management after NAT has been performed. We use a Sonicwall in my organization for IPS, SPA, WAN failover, firewall, and content filtering. It otherwise sucks but I can't get rid of it. I have an RB1100 sitting in front of the Sonicwall. I would ...
by colebert
Fri Apr 26, 2013 7:41 pm
Forum: Wireless Networking
Topic: Scan -73 and then connect -79
Replies: 5
Views: 888

Re: Scan -73 and then connect -79

I always just assumed that scan and registration page were reporting the power level at the lowest data rate and therefore the one most likely to have the highest power.
by colebert
Tue Apr 23, 2013 11:04 pm
Forum: Wireless Networking
Topic: problem p2p
Replies: 15
Views: 1650

Re: problem p2p

On both sides (AP & client) set...

wireless protocol (wireless tab): any
hw retries (advanced tab): 15
enable nstreme (nstreme tab): YES/checked
enable polling (nstreme tab): YES/checked (AP side)
disable CSMA: YES/checked (AP side)

What is link distance and antenna specs?
by colebert
Tue Apr 23, 2013 7:25 pm
Forum: Wireless Networking
Topic: practical/prudent multilink PtP limitations...
Replies: 5
Views: 1151

Re: practical/prudent multilink PtP limitations...

5GHz upper band only. Everything is 1x1. Well, I just see forum post here with people crying about how nstreme doesn't work with this or nv2 doesn't work with that. I don't have a lot of time to test and my application is very limited (5ghz, long range ptp, all indoor) so I just take note of all the...
by colebert
Tue Apr 23, 2013 1:33 pm
Forum: Wireless Networking
Topic: problem p2p
Replies: 15
Views: 1650

Re: problem p2p

Post screen shots of your config. Client and AP side.
by colebert
Tue Apr 23, 2013 1:15 pm
Forum: Wireless Networking
Topic: practical/prudent multilink PtP limitations...
Replies: 5
Views: 1151

Re: practical/prudent multilink PtP limitations...

My sites are in a line. A is HQ and G is the farthest site about 200 miles away. At A we have a Cable Modem connected to the router there. At G we have Verizon 4G LTE w/ a static IP connected to the router there. The mikrotik router at A and G connect to each other over these internet connections an...
by colebert
Mon Apr 22, 2013 8:54 pm
Forum: Wireless Networking
Topic: practical/prudent multilink PtP limitations...
Replies: 5
Views: 1151

Re: practical/prudent multilink PtP limitations...

I have six links (seven sites) in a row: A-B-C-D-E-F-G Total of about 175mi of wireless links. I don't use WDS or MPLS. I route each hop and use OSPF to tie it all together. I have a IP tunnel between site A and site G that kicks in when a link goes down. Site A is a cable modem and Site G is Verizo...
by colebert
Sun Apr 07, 2013 2:16 am
Forum: Wireless Networking
Topic: can any one explain why 2.4 works and 5.8 does not
Replies: 9
Views: 1554

Re: can any one explain why 2.4 works and 5.8 does not

Bad Metal5 perhaps? Is one about 10c hotter to the touch than the other?
by colebert
Sat Mar 30, 2013 8:22 pm
Forum: RouterBOARD hardware
Topic: Question regarding Mikrotik Groove temperature
Replies: 15
Views: 5447

Re: Question regarding Mikrotik Groove temperature

Mikrotik Metal 5GHz overheating. All my units are kept indoor connected to antennas with Waveguide. One day my system reports in failover. Trace problem to a link consisting of two metals. After troubleshooting I replace one of the metals and restore settings which resolves the problem. I bought pro...
by colebert
Mon Dec 19, 2011 9:16 pm
Forum: Wireless Networking
Topic: Best for ptp: nv2, nstreme+n, nstreme dual + a..?
Replies: 5
Views: 2228

Re: Best for ptp: nv2, nstreme+n, nstreme dual + a..?

I perfer nstreme for stability and latency but nv2 is better for bandwidth. You either need to use nstreme or NV2 for PtP. 802.11a or 802.11n only is a joke for long distance PtP. At 3km you probably could get 30/30 with just an XR5 and 40MHz channel but I suggest you use 802.11n and 10MHz. I sugges...
by colebert
Wed Nov 23, 2011 9:54 pm
Forum: Wireless Networking
Topic: Test NV2 40Km
Replies: 13
Views: 2736

Re: Test NV2 40Km

In my experience, overdriving the XR5 though the software kills the CCQ more than the card. Also, no discussion of XR5 is complete without mentioning how Mikrotik screws around with the offsets so that I have no confidence that the card is even being run optimally anyway. BTW, I have XR5 42km that g...
by colebert
Fri Nov 18, 2011 9:58 am
Forum: Wireless Networking
Topic: Request Link Planner Software
Replies: 9
Views: 2301

Re: Request Link Planner Software

But Radio Mobile is hard and I am stupid. :oops:
by colebert
Fri Oct 21, 2011 10:18 am
Forum: Wireless Networking
Topic: router board 433 with mini pci xr-5
Replies: 11
Views: 1353

Re: router board 433 with mini pci xr-5

If you do not give the board enough power then when the radio start pushing traffic it will reboot.

In other words, don't think that just because your board w/ XR5 turns on and is stable that your power supply is good enough. You should test it under load.
by colebert
Thu Oct 20, 2011 10:25 pm
Forum: Wireless Networking
Topic: router board 433 with mini pci xr-5
Replies: 11
Views: 1353

Re: router board 433 with mini pci xr-5

Excuse me. I shouldn't say no problems.

There is, of course, the long running mikrotik shenanigans with the XR5 power offset.

inb4 "UBNT's fault"
by colebert
Thu Oct 20, 2011 10:18 pm
Forum: Wireless Networking
Topic: router board 433 with mini pci xr-5
Replies: 11
Views: 1353

Re: router board 433 with mini pci xr-5

I run single XR5 cards in 433AH, 411AH, 333, 532A, and 600A. No problems. At first I paid no attention to power supply. What happens is that board will boot and radio will link up. But when you start pushing much traffic the board will simply reboot. 24V/1A or 12V/2A will get the job done on the sma...
by colebert
Wed Oct 12, 2011 6:05 pm
Forum: Wireless Networking
Topic: Waveguides 5ghz
Replies: 10
Views: 2089

Re: Waveguides 5ghz

I have not tried to mutliplex a single MIMO radio on one waveguide. Maybe could work if you ran one chain at 5.8 and another at 5.1. Running at the same frequency obviously would not work. I actually need to test how well MIMO would work across two waveguides going to different polarities on the sam...
by colebert
Tue Oct 11, 2011 2:35 pm
Forum: Wireless Networking
Topic: Waveguides 5ghz
Replies: 10
Views: 2089

Re: Waveguides 5ghz

Yes, the bandpass filters help in ways you would not think are necessary when planning everything out on paper. We get so greedy and focused on dBs above all else but the reality of the situation is that the spectrum is basically a garbage dump out there. Just cutting down whats hitting our cheap $7...
by colebert
Tue Oct 11, 2011 12:51 am
Forum: Wireless Networking
Topic: Waveguides 5ghz
Replies: 10
Views: 2089

Re: Waveguides 5ghz

In my case, I didn't really care. I share a waveguide with 7GHz radios pushing +34dB. If I don't filter that out then my XR5s don't work right. Also, I'm working with 41.2dBi antennas so workcase of 3dB of insertion loss isn't going to move the needle for me. However, in practice I'd say these filte...
by colebert
Mon Oct 10, 2011 5:25 pm
Forum: Wireless Networking
Topic: Waveguides 5ghz
Replies: 10
Views: 2089

Re: Waveguides 5ghz

If you are planning to run in the same band then the answer is no. The reason is that you are connecting six radios operating on the same frequency range all to the same cable. This is not much different than connecting radios back to back. They will burn each other out because the signal from the 5...
by colebert
Sat Oct 08, 2011 7:13 pm
Forum: Wireless Networking
Topic: Waveguides 5ghz
Replies: 10
Views: 2089

Re: Waveguides 5ghz

ew42 is rated 4.4 - 5.00GHz ew52 is rated 5.6 - 6.25GHz. ew63 (standard) is rated 5.85 - 7.1GHz (there are multiple models for just the high end band) http://awapps.commscope.com/catalog/Andrew/product_details.aspx?id=1392 http://awapps.commscope.com/catalog/Andrew/product_details.aspx?id=1393 http:...
by colebert
Thu Oct 06, 2011 9:55 pm
Forum: RouterBOARD hardware
Topic: RB600 burnt out...
Replies: 14
Views: 2066

Re: RB600 burnt out...

Looks like your RB600 is now an RB411. :twisted:
by colebert
Tue Sep 20, 2011 8:48 am
Forum: Forwarding Protocols
Topic: IPIP Fragmentation Help!
Replies: 4
Views: 4385

Re: IPIP Fragmentation Help!

Thank you. This advice helped me fix the problem.

I lowered the MTU to 1420 and mangled the MSS down to 1380 against both IPIP interfaces. (1440 and 1400 didn't do the trick.)

Now all my HTTP traffic bound for the internet works fine.

(karma given.)
by colebert
Mon Sep 19, 2011 9:34 pm
Forum: Forwarding Protocols
Topic: IPIP Fragmentation Help!
Replies: 4
Views: 4385

Re: IPIP Fragmentation Help!

Reduced the IPIP tunnel's MTU all the way down to 1000, no help.

I also tried 1001, 1002, 1003, and 1004 in case the Sonicwall wanted it in some multiple of 4.

Can you walk me through how I would make the MSS adjustment?
by colebert
Mon Sep 19, 2011 10:51 am
Forum: Forwarding Protocols
Topic: IPIP Fragmentation Help!
Replies: 4
Views: 4385

IPIP Fragmentation Help!

I'm still learning and not very good at this. First, I have a fairly large (geographically) network connected together over PTP wireless links. The links are routed with OSPF (no WDS/EOIP) and it works fairly well. For internet, all the sites route out the HQ internet connection which has a Sonicwal...
by colebert
Mon Aug 29, 2011 4:54 pm
Forum: RouterBOARD hardware
Topic: Problem in connecting 411 to CISCO3750 switch
Replies: 5
Views: 1108

Re: Problem in connecting 411 to CISCO3750 switch

This sometimes happens with my c3750 switches.

Hardcode either the mikrotik port or the cisco port to 100mbps full-duplex.
by colebert
Tue Mar 29, 2011 4:13 pm
Forum: Wireless Networking
Topic: Daisy chained WDS nodes (halved speed after every hop)
Replies: 8
Views: 2014

Re: Daisy chained WDS nodes (halved speed after every hop)

I have a six hop PTP system that consisted of 12 RBs each with one XR5 connected back to back over about 300 miles. When I used WDS to bridge them all together speeds were much lower than when I used straight up bridge/client and routed them. I cannot explain the problem in technical terms like you ...
by colebert
Fri Dec 10, 2010 9:49 pm
Forum: Wireless Networking
Topic: Does mtik support the following radios?
Replies: 5
Views: 976

Re: Does mtik support the following radios?

Normis, do you guys have UBNT radios to test with?
by colebert
Thu Dec 02, 2010 11:12 pm
Forum: Wireless Networking
Topic: ROS 4.13 + 802.11n Links Horrible
Replies: 9
Views: 2092

Re: ROS 4.13 + 802.11n Links Horrible

Yes, mtik is excellent at many things which is why I am the first to throw any UBNT fanboy out on his ear when he comes here talking about haow UBNT is superior to Mtik with respect to this or that thing without considering the entire picture. I have decided that you just can't rely on either compan...
by colebert
Thu Dec 02, 2010 9:14 pm
Forum: Wireless Networking
Topic: ROS 4.13 + 802.11n Links Horrible
Replies: 9
Views: 2092

Re: ROS 4.13 + 802.11n Links Horrible

You and I and changeip and a couple others go through this every month or so. Mikrotik does not seem interested in playing nice with the SR71-15. They screw with the power in each successive update... even XR5 was not immune from this between 4.11 and 4.13 (though in fairness CCQ did improve for my ...
by colebert
Tue Nov 30, 2010 6:27 pm
Forum: Wireless Networking
Topic: When NV and TDMA works fine ?
Replies: 3
Views: 1022

Re: When NV and TDMA works fine ?

How's your latency and jitter?

Nstreme link the same distance for me does 60-70mbps with 1ms latency.

I took all my bullets down because they were inconsistent. One set would work OK with No Ack and another would suck.
by colebert
Mon Nov 29, 2010 10:30 am
Forum: Wireless Networking
Topic: wireless bridge RB433AH<->RB411
Replies: 2
Views: 1069

Re: wireless bridge RB433AH<->RB411

This is going to seem stupid and/or counter-intuitive but the nature of 802.11 wireless spec is that a AP will only pass traffic generated from the station associated with it (not other devices bridged off of the station.) You are essentially trying to create a bridge with the two units but you are ...
by colebert
Sun Nov 28, 2010 11:21 pm
Forum: Wireless Networking
Topic: RB 711 need PTP ?!
Replies: 2
Views: 907

Re: RB 711 need PTP ?!

No one is going to tell you that a 1km PtP with a building in the middle will DEFINITELY work. However, I have seen it people muscle a very short 5.8GHz link right through a skyscraper and have it work well. You probably should just buy the most powerful dB solution you can find and see what happens...
by colebert
Fri Nov 26, 2010 10:45 pm
Forum: Wireless Networking
Topic: When NV and TDMA works fine ?
Replies: 3
Views: 1022

Re: When NV and TDMA works fine ?

When will Airmax work as well as nstreme for long-distance links?

There is much to disappointed about in both companies. You seem to have found ONE application for which UBNT works better than Mtik for YOUR purposes. Please try to keep this in perspective.
by colebert
Fri Nov 12, 2010 10:06 pm
Forum: Wireless Networking
Topic: need ur opinion on my status,i am very new to mikrotik
Replies: 16
Views: 2246

Re: need ur opinion on my status,i am very new to mikrotik

1. HW Retries (advanced tab) set to 15 on both sides
2. Turn on Adaptive noise immunity (client and AP setting)
3. Stop using the 5.9Ghz frequency and still with the 5700 to 5840 range.
by colebert
Fri Nov 12, 2010 5:22 pm
Forum: Wireless Networking
Topic: need ur opinion on my status,i am very new to mikrotik
Replies: 16
Views: 2246

Re: need ur opinion on my status,i am very new to mikrotik

Use 5.8GHz range. It is in the basic wireless tab under "FREQUENCY" setting.
by colebert
Wed Nov 03, 2010 4:21 pm
Forum: Wireless Networking
Topic: Unable to Us N Rates
Replies: 8
Views: 1345

Re: Unable to Us N Rates

On both radios:

Go to DATA RATES tab
Set to MANUAL
UNCHECK all 802.11a/b/g rates (everything)

That should fix it the 802.11a issue.

Set your HW Retries to 15 on both sides (advanced tab)
Use nstreme
by colebert
Thu Oct 28, 2010 7:43 pm
Forum: Wireless Networking
Topic: Missing dBs between ROS 4.11 and 5.0rc2 w/ SR71-15
Replies: 11
Views: 3168

Re: Missing dBs between ROS 4.11 and 5.0rc2 w/ SR71-15

Hey Uldis, I'll try to get those screenshots up soon. Thanks!
by colebert
Thu Oct 28, 2010 7:40 pm
Forum: Wireless Networking
Topic: Wrong TX-power values.
Replies: 19
Views: 3598

Re: Wrong TX-power values.

Mikrotik releases a new version of their software that results in the card performing 10dB worse than their previous version it's somehow UBNT's fault? Seems to me that if care would be taken to make sure ROS can make proper use of a well-known and respected brand and model of 802.11n cards that thi...
by colebert
Thu Oct 28, 2010 4:52 pm
Forum: Wireless Networking
Topic: Wrong TX-power values.
Replies: 19
Views: 3598

Re: Wrong TX-power values.

Their bug? Is it their bug that drops the TX power 10dB when you upgrade from ROS 4.11 to ROS 5.0rc2?
by colebert
Thu Oct 28, 2010 12:15 am
Forum: Wireless Networking
Topic: good signal, totally weird CCQ
Replies: 7
Views: 2077

Re: good signal, totally weird CCQ

The cards in the link wouldn't happen to be an R52HN or R5HN cards would they?
by colebert
Wed Oct 27, 2010 11:06 pm
Forum: General
Topic: RouterOS v5 RC2
Replies: 91
Views: 14921

Re: RouterOS v5 RC2

When switching between v4.11 and rc2 the MCS rates increase one level.

For example, when I upgraded a link that was set for MCS5 the link came back up set for MCS6. I was able to reproduce this problem.
by colebert
Wed Oct 27, 2010 10:48 pm
Forum: Wireless Networking
Topic: Missing dBs between ROS 4.11 and 5.0rc2 w/ SR71-15
Replies: 11
Views: 3168

Re: Missing dBs between ROS 4.11 and 5.0rc2 w/ SR71-15

At the point I can lose 10dBs of signal strength and 17dBs of my SNR just switching between ROS versions I think it's pretty clear who's driving the clown car on this issue.
by colebert
Wed Oct 27, 2010 9:05 pm
Forum: General
Topic: RouterOS v5 RC2
Replies: 91
Views: 14921

Re: RouterOS v5 RC2

Missing dBs between v4.11 and 5.0rc2

http://forum.mikrotik.com/viewtopic.php ... 1&p=233528
by colebert
Wed Oct 27, 2010 8:11 pm
Forum: Wireless Networking
Topic: Missing dBs between ROS 4.11 and 5.0rc2 w/ SR71-15
Replies: 11
Views: 3168

Missing dBs between ROS 4.11 and 5.0rc2 w/ SR71-15

I do not understand why it has to be so hard to get the wonderful SR71-15 card to work right with ROS. It has been an ongoing issue with ROS and SR71-15 with respect to power levels. Here is a new chapter. Today I updated a 36mi single-chain 802.11n PtP link from 4.11 to rc2. Power level dropped fro...
by colebert
Tue Oct 26, 2010 5:42 pm
Forum: General
Topic: OS v5.0 Stable, ever?
Replies: 20
Views: 5047

Re: OS v5.0 Stable, ever?

wisp... i cannot account for your issues (unless it is POE related) but I can also tell you that I have 6 PtP links running rc1 without issue. My 7th link had an old RB532A that didn't like the upgrade to rc1 but I cannot say that it was rc1's fault as I have not throughly troubleshot. it seems to m...
by colebert
Tue Oct 26, 2010 5:39 pm
Forum: Wireless Networking
Topic: connecting ip equipment on a microwave network
Replies: 3
Views: 1093

Re: connecting ip equipment on a microwave network

Please be more specific...

are you referring to underbuilding 5.8ghz radios into a licensed 6ghz microwave system?
by colebert
Mon Oct 25, 2010 9:49 pm
Forum: Wireless Networking
Topic: Question about diferent data rates simultaneously
Replies: 7
Views: 1329

Re: Question about diferent data rates simultaneously

Its a XR5 ubiquiti card at a RB433 with an Hyperlink Panel 120º 14DBi 2.4GHz!
Thats your first problem, an XR5 isnt supposed to use a 2.4ghz panel : ) Are you asking about wireless (B/G) modes, or data rates on the same mode?
Winrar.
by colebert
Mon Oct 25, 2010 4:35 am
Forum: Wireless Networking
Topic: Latency spikes in v5.0rc1 using NV2 and N
Replies: 3
Views: 1147

Re: Latency spikes in v5.0rc1 using NV2 and N

Time to post up shots of your config so we can see what you have.

Verify your POE ratings on the RB600 reboot issue.
by colebert
Sun Oct 24, 2010 6:06 am
Forum: Wireless Networking
Topic: Latency spikes in v5.0rc1 using NV2 and N
Replies: 3
Views: 1147

Re: Latency spikes in v5.0rc1 using NV2 and N

Is your cell radius set right? if it's ptp you can probably set your tdma period size to 1ms but i suspect it's just a reflection of the fact NV2 is so new and isn't stable. i have 7 ptp links and when i switched them from nv2 to nstreme the latency became more jittery relative to nstreme so i figur...
by colebert
Sat Oct 23, 2010 11:17 pm
Forum: Wireless Networking
Topic: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11
Replies: 21
Views: 4141

Re: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11

Do you uncheck all the MCS rates except 10 on both supported and basic? Because I didn't have any link after that. Then I tried all 4-10 rates, still nothing, then I tried 0-10, nothing, I could only get the link back by going defaulting all the data rates again... Not sure on the ACK thing, it see...
by colebert
Sat Oct 23, 2010 9:43 pm
Forum: Wireless Networking
Topic: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11
Replies: 21
Views: 4141

Re: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11

No, you can adjust on 4.11, too.

I don't understand why you are configuring ack. If you have nstreme enabled on then you don't need to worry about ack.
by colebert
Sat Oct 23, 2010 7:47 pm
Forum: Wireless Networking
Topic: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11
Replies: 21
Views: 4141

Re: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11

This is the best advice I can give you...

1. HW retires = 15
2. Adaptive noise immunity = client & ap
3. Periodic Calibration = off
4. CSMA = off
5. Framer policy = best fit
6. Data rates = manual
7. Disable ALL 802.11a/b/g rates
8. Disable ALL MCS rates except MCS10
by colebert
Sat Oct 23, 2010 5:19 pm
Forum: Wireless Networking
Topic: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11
Replies: 21
Views: 4141

Re: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11

Would love to see the screen shots... esp Advanced, MCS, HT, and Data rates. Set data rates to manual Remove all 802.11a/b/g rates Uncheck all MCS rates Check only MCS12 See if that helps. Also, I disable CSMA on my 802.11n PtPs. FYI, the "Wireless Protocol" tab in v5 is just an order of preference ...
by colebert
Fri Oct 22, 2010 9:05 pm
Forum: Wireless Networking
Topic: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11
Replies: 21
Views: 4141

Re: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11

FYI, I use 5.0rc1 on all my long-distance 802.11n links with good success. I do not, however, recommend using NV2 with them. All that said, I am about to downgrade back to XR5 due to the issue with missing dBs in ROS with the SR71-15. I need more power more than I need the extra Mbps to overcome ear...
by colebert
Fri Oct 22, 2010 8:51 pm
Forum: Wireless Networking
Topic: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11
Replies: 21
Views: 4141

Re: 802.11n Data Rates Horrible at 31 Mile Link OS 4.11

Post up some screenshots of your config, bro. We'll try to help!
by colebert
Thu Oct 21, 2010 3:38 pm
Forum: Wireless Networking
Topic: Poor speed (6Mbps) with R52Hn
Replies: 30
Views: 8619

Re: Poor speed (6Mbps) with R52Hn

What ROS Version are you using?

The problem is that you aren't connecting at 802.11n rates. You are getting good speeds for 802.11g but that's not what you want.
by colebert
Thu Oct 21, 2010 10:14 am
Forum: Wireless Networking
Topic: Poor speed (6Mbps) with R52Hn
Replies: 30
Views: 8619

Re: Poor speed (6Mbps) with R52Hn

As a test, go to data rates tab and set it to manual config. Then uncheck ALL the rates and apply. That should leave ONLY the N rates as available options. See if your laptop connects at N rates and has better speeds. Report back and let me know.
by colebert
Thu Oct 21, 2010 7:59 am
Forum: Wireless Networking
Topic: confused about antenna selection
Replies: 5
Views: 1084

Re: confused about antenna selection

Yes, WDS works for 802.11n. Yes, you can use a same single-polarity antenna for 802.11n and get better speeds than 802.11a. 802.11n is not a stable as 802.11a with respect to CCQ. I can regularly achieve a stable 100% CCQ link with 802.11a but same link with 802.11n is maybe 90-100% CCQ. But speeds ...
by colebert
Wed Oct 20, 2010 11:25 pm
Forum: Wireless Networking
Topic: confused about antenna selection
Replies: 5
Views: 1084

Re: confused about antenna selection

ROS 4.11 is OK for N. Single chain N is still very fast. You will see a big speed increase from 802.11a to 802.11n but obviously your dishes are single chain so without an upgrade to dual-chain you will not get the maximum available speeds. It all depends on how much you need and how hard it is to u...
by colebert
Wed Oct 20, 2010 7:45 pm
Forum: Wireless Networking
Topic: Poor speed (6Mbps) with R52Hn
Replies: 30
Views: 8619

Re: Poor speed (6Mbps) with R52Hn

What is the wireless card you are using in the laptop?

Your laptop is not connecting at 802.11n rates; it is using 802.11g rates.
by colebert
Wed Oct 20, 2010 4:24 pm
Forum: Wireless Networking
Topic: Poor speed (6Mbps) with R52Hn
Replies: 30
Views: 8619

Re: Poor speed (6Mbps) with R52Hn

OK, yes. That is different. But I'd still like to see the status from the REGISTRATION tab. Check the instructions I gave you above. First thing I see is that you don't have your second antenna enabled. You need to check CHAIN1 on the HT page. Second thing I see is that you should set your ack timeo...
by colebert
Wed Oct 20, 2010 12:20 pm
Forum: Wireless Networking
Topic: Is Wireless in 4.x and N reliable?
Replies: 7
Views: 1503

Re: Is Wireless in 4.x and N reliable?

Hello Is this a v4.11 problem or an N problem? It's probably a "you" problem. :) My 802.11n works relatively well. N works well-ish in 4.11 and the 5.0 beta. I will say that (for whatever reason) that you should expect to achieve a slightly less stable CCQ (i.e., 90%+ rather than solid 100%) with 8...
by colebert
Wed Oct 20, 2010 12:13 pm
Forum: Wireless Networking
Topic: Poor speed (6Mbps) with R52Hn
Replies: 30
Views: 8619

Re: Poor speed (6Mbps) with R52Hn

Please read this thread: http://forum.mikrotik.com/viewtopic.php?f=7&t=45769 Start with this: 1. Set HW retries to 15 2. Enable nstreme, enable polling, disable CSMA, set framer policy to dynamic 3. Set data rates to manual. UNCHECK all 802.11a/b/g rates (6mbps ~ 54mbps) Show us a screen shot of you...
by colebert
Wed Oct 20, 2010 12:08 pm
Forum: Wireless Networking
Topic: Mikrotik Wireless 5G Link Problem
Replies: 2
Views: 755

Re: Mikrotik Wireless 5G Link Problem

If OP is only getting 6megs on an XR5 then something else is wrong.

Please post your configuration for us to review.

Also, please consult this thread: http://forum.mikrotik.com/viewtopic.php?f=7&t=45769

If you are like many people, you have not enabled nstreme or set your HW Retries to 15.
by colebert
Tue Oct 19, 2010 11:13 pm
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 77757

Re: New wireless protocol: Nv2 in v5.0beta5

News Flash: The cell radius setting is pretty important. I couldn't get an NV2 link to work. The client side would register and then drop after only a few seconds. The AP side would never register. I had to go into the command line and set it by hand. I am getting pretty disappointed in the v5 Winb...
by colebert
Tue Oct 19, 2010 4:28 pm
Forum: Wireless Networking
Topic: I should be rockin, but am only crawling
Replies: 25
Views: 4497

Re: I should be rockin, but am only crawling

It's nstreme, bro. No ack.
by colebert
Mon Oct 18, 2010 6:11 pm
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 77757

Re: New wireless protocol: Nv2 in v5.0beta5

News Flash: The cell radius setting is pretty important. I couldn't get an NV2 link to work. The client side would register and then drop after only a few seconds. The AP side would never register. I had to go into the command line and set it by hand. I am getting pretty disappointed in the v5 Winbo...
by colebert
Mon Oct 18, 2010 2:18 am
Forum: Wireless Networking
Topic: I should be rockin, but am only crawling
Replies: 25
Views: 4497

Re: I should be rockin, but am only crawling

Happy to help. FYI, bandwidth test in Winbox is not a good measure of throughput. You most likely have much more than that as bandwidth test maxes out the CPU power of the RB. It can't produce enough packets to do a real test. I have a single chain 802.11n that gets 60meg at MCS6 so you are likely g...
by colebert
Mon Oct 18, 2010 1:58 am
Forum: Wireless Networking
Topic: I should be rockin, but am only crawling
Replies: 25
Views: 4497

Re: I should be rockin, but am only crawling

OK, 97%/97% is pretty solid for 802.11n. Just do MCS15 on both sides and see what you get. Do you want to go faster? If so, go to HT tab on each side and enable Extension Channel as "above control." Do a bandwidth test and tell me your CCQ ratings (under the registration tab). I think you are close ...
by colebert
Mon Oct 18, 2010 1:31 am
Forum: Wireless Networking
Topic: I should be rockin, but am only crawling
Replies: 25
Views: 4497

Re: I should be rockin, but am only crawling

Turn on Adaptive Noise Immunity and set it to "AP & CLIENT MODE". Double-clikc on your wireless interface, go to the registration tab, double click on your connection, go to the signal tab, and give me a screen shot of that. Both client and AP please. Also, let me see your HT MCS tab (client and AP)...
by colebert
Mon Oct 18, 2010 12:50 am
Forum: Wireless Networking
Topic: I should be rockin, but am only crawling
Replies: 25
Views: 4497

Re: I should be rockin, but am only crawling

OK, seriously. You need to enable NSTREME as I outlined about and do the following: 1. Set HW Retries to 15 on both sides 2. Uncheck set Data rates tab to manual 3. Uncheck all 802.11a rates (no rates remaining) 4. Uncheck all MCS rates except for MCS8 Do the above on both sides of the link. You sho...
by colebert
Mon Oct 18, 2010 12:20 am
Forum: Wireless Networking
Topic: I should be rockin, but am only crawling
Replies: 25
Views: 4497

Re: I should be rockin, but am only crawling

DEFINITELY use nstreme. It makes these kinds of links work right. Turn it on for both sides.

Turn off CSMA and enable Polling. Dynamic or Best Fit framer modes work well.

Can I see a shot of your ADVANCED and HT MCS tabs?
by colebert
Sun Oct 17, 2010 10:21 pm
Forum: Wireless Networking
Topic: I should be rockin, but am only crawling
Replies: 25
Views: 4497

Re: I should be rockin, but am only crawling

Are you using nstreme?

Post screenshots of your config for us to review.
by colebert
Wed Oct 06, 2010 4:11 am
Forum: Forwarding Protocols
Topic: Proper OSPF settings for my topology
Replies: 4
Views: 1532

Re: Proper OSPF settings for my topology

OK, I'll break each link up and see how more reliable my links are.

I don't think you were being unclear. Thanks!
by colebert
Wed Oct 06, 2010 2:47 am
Forum: Forwarding Protocols
Topic: Proper OSPF settings for my topology
Replies: 4
Views: 1532

Re: Proper OSPF settings for my topology

Sorry, it's only one area. The red zone was just me taking that leg out of the bridge and putting it into a separate subnet.

So you are saying I should do away with the bridging and make each link it's own separate routed space?
by colebert
Wed Oct 06, 2010 2:02 am
Forum: Forwarding Protocols
Topic: Proper OSPF settings for my topology
Replies: 4
Views: 1532

Proper OSPF settings for my topology

Can I get a bit of advice for configuring my optimal OSPF settings? I have attached a diagram of my network topology. It's basically a series of point to point, back to back wireless links that are all bridged together except for one link which is a separate network. At each site (branch) there is a...
by colebert
Thu Sep 23, 2010 11:40 pm
Forum: General
Topic: RouterOS v5 RC1
Replies: 82
Views: 18626

Re: RouterOS v5 RC1

ccq and tx-signal isn't showinf currently for Nv2 links.
and currently Nv2 doesn't support short guard interval and that is why the max data-rate is 270Mbps
Yes, I observed this too. It's keeping me from testing nv2 as I can't get a sense of CCQ and TX power relative to normal nstreme.
by colebert
Thu Sep 23, 2010 6:27 pm
Forum: General
Topic: MCS Manual Power Settings
Replies: 0
Views: 632

MCS Manual Power Settings

In ROS 4.11 you can manually set the MCS power levels however as of RC1 you can not do this in v5.

Is this feature going to be incorporated in v5?
by colebert
Mon Jul 12, 2010 3:23 pm
Forum: Wireless Networking
Topic: R52Hn strange readings
Replies: 36
Views: 10119

Re: R52Hn strange readings

I have nearly a dozen of R5Hn cards that do this. I keep repeating that something is wrong with these cards. I have completely stopped using them. They all exhibit the same behavior you are reporting. One side of the link is 20db lower than the other and the CCQ is terrible. Just get two Ubiquiti SR...
by colebert
Thu Jun 17, 2010 12:08 am
Forum: Wireless Networking
Topic: Need help with 8km PTP
Replies: 16
Views: 2523

Re: Need help with 8km PTP

He's using 4.5. Probably should upgrade to 4.10. Are you keeping nstreme on? (Nstreme=On, Polling=On, CSMA=disabled) Put your card at 17db for all rates. (Set your data rates to 36mbps ONLY) I do not recommend you change antennas... just push less power through them. You want 50s or 60s for power. I...
by colebert
Wed Jun 16, 2010 9:06 pm
Forum: Wireless Networking
Topic: Need help with 8km PTP
Replies: 16
Views: 2523

Re: Need help with 8km PTP

lock to a SINGLE RATE rather than leaving them all selected. it's also not clear to me what ROS version you are using. latest build (4.10?) or 3.x? You probably won't want to hear this but, in my experience (and some others on this board) using two XR5 in the same RB causes all sorts of problems. Wh...
by colebert
Wed Jun 16, 2010 6:06 am
Forum: Wireless Networking
Topic: Need help with 8km PTP
Replies: 16
Views: 2523

Re: Need help with 8km PTP

definitely, definitely lower power levels.

mid-50s will be just fine
by colebert
Wed Jun 16, 2010 6:04 am
Forum: Wireless Networking
Topic: PTP low performance
Replies: 8
Views: 1654

Re: PTP low performance

I'm using wds + bridge. the tx/rx CCQ is 90-100% but falls to 20% when has trafic.
you did not mention if you're using nstreme...
by colebert
Wed Jun 16, 2010 1:18 am
Forum: Wireless Networking
Topic: PTP low performance
Replies: 8
Views: 1654

Re: PTP low performance

post your configuration. are you using nstreme?

what is your CCQ while attempting to pass traffic?
by colebert
Tue Jun 15, 2010 11:08 pm
Forum: General
Topic: MikroTik RouterOS version 5.0beta2 released!
Replies: 139
Views: 44912

Re: MikroTik RouterOS version 5.0beta2 released!

OoOOoo a new beta soon :) Sorry I am a bit late with this comment below. :shock: First implement Soundblaster-Driver. I want a quadrophonic Star-Trek sound when wlan thruput crosses Lightspeed (100Mbit). :) Wow... Quadraphonic. A Quad Soundblaster driver should be standard in all versions. Make sur...
by colebert
Tue Jun 15, 2010 11:03 am
Forum: Wireless Networking
Topic: frustration all around
Replies: 31
Views: 2893

Re: frustration all around

Glad to see you finally listened to me. Running one box at ROS 4.x and one at ROS 3.x was not a good idea. Do this: 1. upgrade to ROS 4.10 or 5.x beta 2. enable nstreme, enable polling, and disable CSMA 3. increase rate to 48mbps only and see if you get 100% CCQ and good power report back with your ...
by colebert
Thu Jun 10, 2010 7:09 pm
Forum: Wireless Networking
Topic: Help w/ 10.5km ptp
Replies: 5
Views: 910

Re: Help w/ 10.5km ptp

Leave the TX power settings alone. ROS has correct default power settings for the XR5 and you are risking burning out your card by tinkering with the power levels. Just update your ROS to latest version and try to make the link. 10.5km with XR5 and 27dbi dishes should work even with interference/noi...
by colebert
Thu Jun 10, 2010 6:46 pm
Forum: Wireless Networking
Topic: point to point link
Replies: 7
Views: 1089

Re: point to point link

Let me put it a different way. For a 44mi/70km link, your free space loss should be 144db. 29dbi antennas (properly aligned) should yield +58 gain XR5 @ 24mbps has a gain of +28 58+28-144= -58 That does not factor in cable loss obviously but if you are missing about 20db of signal then I suggest to ...
by colebert
Thu Jun 10, 2010 5:44 pm
Forum: Wireless Networking
Topic: point to point link
Replies: 7
Views: 1089

Re: point to point link

That will only gain you 4db of strength. YOu may be looking at fresnel or line-of-sight issues at this point.

Also, for a link this long, thermal induction may be playing with your signal. My 58mi NLOS link bounces from -55 to -85 thoughout the day.
by colebert
Fri Jun 04, 2010 3:17 pm
Forum: Wireless Networking
Topic: R52H Failure
Replies: 15
Views: 1979

Re: R52H Failure

Use Ubquiti cards. Far less problems than with Mtik, in my experience. SR71-15 is a champ.
by colebert
Wed Jun 02, 2010 3:12 pm
Forum: Wireless Networking
Topic: lost connection, got deauth (urgent help)
Replies: 15
Views: 5186

Re: lost connection, got deauth (urgent help)

yes, let's your config. screenshots in winbox are helpful as well.
by colebert
Tue Jun 01, 2010 8:51 pm
Forum: General
Topic: Ros 5.0b2 can't install on ESXi 4.0
Replies: 13
Views: 4046

Re: Ros 5.0b2 can't install on ESXi 4.0

I can't get a CF card prepped with NetInstall 5.0 to boot in an x86 system and install. I had to use that boot CD to prep the CF card.

Netinstall 4.9 worked just fine but so what? No drivers for my NIC.
by colebert
Tue Jun 01, 2010 5:11 pm
Forum: Wireless Networking
Topic: frustration all around
Replies: 31
Views: 2893

Re: frustration all around

Also, even if you are missing 10db due to ROS mistaking the power of your card, you are still missing at least 16db (probably more like 20db, really).
by colebert
Tue Jun 01, 2010 4:09 pm
Forum: Wireless Networking
Topic: frustration all around
Replies: 31
Views: 2893

Re: frustration all around

1. Upgrade to ROS 4.10. There is no more superchannel license requirement. 2. Disable all this antenna A/B whatever. It is unnecessary and can't help your troubleshooting. Is there a reason you are not addressing the Nstreme issue I have been mentioning? It could be that ROS is not reading the 10db ...
by colebert
Tue Jun 01, 2010 11:20 am
Forum: Wireless Networking
Topic: frustration all around
Replies: 31
Views: 2893

Re: frustration all around

Try other cards. May be you have blown them. You dont need high power for this short link using high gain antennas. R52(n) does the job. This could be the problem, but when I blew a card (or had defective ones) you see low CCQ *and* large discrepancies in signal strength. OP is not using nstreme wh...
by colebert
Tue Jun 01, 2010 4:32 am
Forum: Wireless Networking
Topic: frustration all around
Replies: 31
Views: 2893

Re: frustration all around

OK, you may say clear LOS but I'm telling you it's not.

Free space loss on a 5 km link is 121db.

26(Power)+24(Tx)+24(Rx)-121(FSL)-6(cable loss)=-54

Where is your missing 26db?

It's either misaligned antenna, impacted fresnel, or non-LOS.
by colebert
Mon May 31, 2010 9:53 pm
Forum: Wireless Networking
Topic: frustration all around
Replies: 31
Views: 2893

Re: frustration all around

Turn on Nstreme, enable polling, disable CSMA.
Set HW Retries to 15

You have very low signal strength for a PTP link of this distance. You should investigate possible LOS issues or come clean about what kind of antennas you are using.
by colebert
Sun May 30, 2010 12:16 am
Forum: RouterBOARD hardware
Topic: 7 of 10 433 UAH Routerboards failing
Replies: 8
Views: 1270

Re: 7 of 10 433 UAH Routerboards failing

I have two RB411UAH and they work perfectly, no RMAs or issues.

Just sayin'...

R5H and R5nHs? Well that is another matter....
by colebert
Sat May 29, 2010 10:37 am
Forum: Wireless Networking
Topic: the importance of cpu power in 802.11n PtP links
Replies: 5
Views: 1405

Re: the importance of cpu power in 802.11n PtP links

yup. ok.

My RBs are in sequence:

A - B - C - D - E - F - G (and so on)

If I run a test from A to G and check resources on B, C, D their resources are only 25%.
by colebert
Fri May 28, 2010 2:46 pm
Forum: Wireless Networking
Topic: the importance of cpu power in 802.11n PtP links
Replies: 5
Views: 1405

Re: the importance of cpu power in 802.11n PtP links

You do not test 11n. You test bandwith test. In order to test 11n you should plug a testing system on ethernet ports of the RB411AHs. Perhaps this is true. Bandwidth test could be skewing the resource usage. I have read elsewhere that 802.11n needs multiple streams rather than synthetic bandwidth t...
by colebert
Fri May 28, 2010 12:28 pm
Forum: Wireless Networking
Topic: RB433 with 2 Ubiquiti XR radios and indoor case
Replies: 2
Views: 855

Re: RB433 with 2 Ubiquiti XR radios and indoor case

I wasn’t sure which forum to post this and I’m sure that this has come up before but here goes. I have an RB43AH with one Ubiquiti XR2 and one Ubiquiti XR5 installed. My problem is with the thickness of the XR radios one radio has to be installed in the bottom mini PCI slot and one radio in the top...
by colebert
Fri May 28, 2010 12:09 pm
Forum: Wireless Networking
Topic: point to point link
Replies: 7
Views: 1089

Re: point to point link

I have experience making a NLOS XR5 link work at 58 miles PtP. Here are my recommendations. enable nstreme enable polling disable csma turn on adaptive noise immunity (client & ap mode) set HW retries to 15 set data rates to manual disable all data rates except for 24mbps on both sides During testin...
by colebert
Fri May 28, 2010 12:03 pm
Forum: Wireless Networking
Topic: the importance of cpu power in 802.11n PtP links
Replies: 5
Views: 1405

Re: the importance of cpu power in 802.11n PtP links

My 26mi test link is configured this way: RB411AH: Bridge mode Optiplex: Client mode (no WDS, EOIP, or VPLS) Freq: 5825 MHz Mode: 802.11n only HW retries: 15 Nstreme on/CSMA off/Polling on/Best Fit framing/3200 framer limit Default TX levels MCS2/3/4/5/6/7 rates only single chain/all AMPDU/extension...
by colebert
Fri May 28, 2010 10:53 am
Forum: Wireless Networking
Topic: the importance of cpu power in 802.11n PtP links
Replies: 5
Views: 1405

the importance of cpu power in 802.11n PtP links

Sorry if I have missed all the threads stressing the importance of cpu speeds in maximizing tcp throughput in 802.11n PtP links, but I wanted to give an example of my experience so far. For a 26mi PtP 802.11n link (single chain), I was originally using matching RB411AH boards with SR17-15 cards. My ...
by colebert
Tue May 25, 2010 5:45 am
Forum: Wireless Networking
Topic: 802.11n PTP links going batsh*t crazy
Replies: 6
Views: 1288

Re: 802.11n PTP links going batsh*t crazy

Well about 3 links crapped out to the point they wouldn't stay at MCS0, had CCQ of between 15 and 30, and registered a total throughput of about 5120bps or something. It was pretty bad. But every link was off from 20 to 40 dbm. A couple that have really high SNR (70+) continued to work but the ones ...
by colebert
Mon May 24, 2010 1:13 pm
Forum: Wireless Networking
Topic: 802.11n PTP links going batsh*t crazy
Replies: 6
Views: 1288

802.11n PTP links going batsh*t crazy

OK, I have a set of PTP links I've been testing for a few months and they have been pretty solid. I got them all going well, or so I thought. For the last six hours they have basically been going crazy and it is all related to signal strength. Let me just say that all my links have clear LOS/fresnel...
by colebert
Mon May 24, 2010 11:35 am
Forum: General
Topic: Ros 5.0b2 can't install on ESXi 4.0
Replies: 13
Views: 4046

Re: Ros 5.0b2 can't install on ESXi 4.0

That's why I made my own CD image. http://uploading.com/files/bm14ddf4/mikrotik-5.0beta2a.iso/ OK, I want to take time out of my day to give you karma for this. It completely solved my issue. I was trying to install 5.0 beta 2 on an x86 platform. Dell Optiplex 780 (latest BIOS firmware (A03)) Core2...
by colebert
Mon May 10, 2010 1:50 am
Forum: General
Topic: MikroTik RouterOS version 5.0beta2 released!
Replies: 139
Views: 44912

Re: MikroTik RouterOS version 5.0beta2 released!

Yes, please fix:

1. SR71-15 power issue
2. Manual MCS power setting in winbox

Please don't tell me that issue #1 is a UBNT issue and for issue #2 I should use the CLI.
by colebert
Sat May 08, 2010 1:19 am
Forum: General
Topic: MikroTik RouterOS version 5.0beta2 released!
Replies: 139
Views: 44912

Re: MikroTik RouterOS version 5.0beta2 released!

I concur with above poster warning about UBNT. I see the value in their products but they are hit or miss depending on application. If Mikrotik can get it's act together with their ROS 5.0 line of software I think it will be obvious they are the superior platform when it comes to the OS and the base...
by colebert
Thu May 06, 2010 8:37 am
Forum: Wireless Networking
Topic: Wrong TX-power values.
Replies: 19
Views: 3598

Re: Wrong TX-power values.

^^ wow this still isn't fixed in 5.0beta? hrm... I suppose Mikrotik sets the correct power for their R5Hn card though right?
Precisely. :?
by colebert
Wed May 05, 2010 8:34 pm
Forum: Wireless Networking
Topic: Wrong TX-power values.
Replies: 19
Views: 3598

Re: Wrong TX-power values.

Winbox does not give you the ability to set your MCS rate powers. To fully fix the issue you will need to set the card to manual power and then go into the command line and manually edit that way.
by colebert
Tue May 04, 2010 7:00 pm
Forum: Wireless Networking
Topic: 16 mile PTP link questions
Replies: 7
Views: 2022

Re: 16 mile PTP link questions

We use dual polarity waveguide fed Andrew dishes but I'm not convinced that the price difference buys you much improvement in overall signal strength vs a Rocket for example.

I suspect what it gets you is greatly improved build quality and durability.
by colebert
Mon May 03, 2010 11:54 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287201

Re: 802.11n

HW retry=4 ??
by colebert
Mon May 03, 2010 7:46 pm
Forum: Wireless Networking
Topic: 16 mile PTP link questions
Replies: 7
Views: 2022

Re: 16 mile PTP link questions

RB800 is a good choice for max performance. I learned the hard way about how routerboards can bottleneck your system. Thankfully it was long before i ever needed to put one on a tower. First, avoid Mikrotik wireless card. The SR71-15 is the premium 802.11n card in my opinion. I'm just one voice but ...
by colebert
Fri Apr 30, 2010 9:19 pm
Forum: General
Topic: MikroTik RouterOS version 5.0beta2 released!
Replies: 139
Views: 44912

Re: MikroTik RouterOS version 5.0beta2 released!

Looking forward to testing out beta2 on all my long PtPs over the weekend.
by colebert
Fri Apr 30, 2010 7:14 am
Forum: Wireless Networking
Topic: Rb433ah + 2xR5H + XR5.
Replies: 1
Views: 565

Re: Rb433ah + 2xR5H + XR5.

Because mikrotik does not design their boards to always accomodate the form factor ubiquiti cards, just their own. Not that this is a huge issue but I wonder if these companies ever even speak to each other or care if the other's products even work with their own.
by colebert
Thu Apr 29, 2010 2:17 am
Forum: Wireless Networking
Topic: Nstreme have serious problem with 802.11n
Replies: 9
Views: 2422

Re: Nstreme have serious problem with 802.11n

I don't know what to tell you guys. It and 802.11n together work great for me and I recommend it to everyone. This forum is filled with these sort of success stories.
by colebert
Wed Apr 28, 2010 9:11 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287201

Re: 802.11n

The thing is that the nstream and the pooling policy runs much more greater but it is still behind airmax :( Hope that routeros will squeeze much more (in near future) from the 802.11n standard that in this moment . Greets all! I am surprised to hear this. In all my testing (long distance PtP links...
by colebert
Wed Apr 28, 2010 9:05 pm
Forum: Wireless Networking
Topic: Nstreme have serious problem with 802.11n
Replies: 9
Views: 2422

Re: Nstreme have serious problem with 802.11n

I and many other people here use nstreme and 802.11n together without problem.
by colebert
Tue Apr 27, 2010 6:52 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287201

Re: 802.11n

The thing is that the nstream and the pooling policy runs much more greater but it is still behind airmax :( Hope that routeros will squeeze much more (in near future) from the 802.11n standard that in this moment . Greets all! I am surprised to hear this. In all my testing (long distance PtP links...
by colebert
Tue Apr 27, 2010 1:27 am
Forum: Wireless Networking
Topic: ptp 35 km
Replies: 1
Views: 628

Re: ptp 35 km

As long as you have LOS and clear fresnel, 29dbi and 32dbi both will get the job done.
by colebert
Tue Apr 27, 2010 1:16 am
Forum: Wireless Networking
Topic: Power Offset for Ubiquit SR71
Replies: 28
Views: 7041

Re: Power Offset for Ubiquit SR71

I was in your position with the RB600 and moving from XR5 to SR71-15. After much legwork I found that RB600 is the bottleneck on TCP speeds. When I moved to RB411AH platform I started getting 30mbps symmetrical TCP traffic on a 40MHz channel. This was with a 26mi PtP link (single chain.) So I sugges...
by colebert
Tue Apr 20, 2010 11:41 pm
Forum: Wireless Networking
Topic: R5nH - 1x1 MiMo card...
Replies: 32
Views: 5416

Re: R5nH - 1x1 MiMo card...

I'm pretty certain that 3 of my 6 R5nH cards are bad. They all do the same thing... one card transmits at normal rates and the other is 20-25db lower. For example, on a 18 mile link one will be at -47 and the other at -69. I have three of the six I ordered that do this. They also get very very hot t...
by colebert
Fri Apr 16, 2010 8:54 am
Forum: Wireless Networking
Topic: Power Offset for Ubiquit SR71
Replies: 28
Views: 7041

Re: Power Offset for Ubiquit SR71

OK, so now how do we properly compensate. There doesn't seem to be a really good way to change the MCS power settings in winbox. Is this a command line fix only?
by colebert
Thu Apr 15, 2010 1:50 pm
Forum: Wireless Networking
Topic: Power Offset for Ubiquit SR71
Replies: 28
Views: 7041

Re: Power Offset for Ubiquit SR71

OK... so to the point. How do we fix our SR71-15 cards to account for the offest issue?
by colebert
Thu Apr 15, 2010 5:29 am
Forum: Wireless Networking
Topic: Power Offset for Ubiquit SR71
Replies: 28
Views: 7041

Re: Power Offset for Ubiquit SR71

no sooner do I say that than I find out he answers.

http://www.ubnt.com/forum/showthread.php?t=19121
by colebert
Thu Apr 15, 2010 5:27 am
Forum: Wireless Networking
Topic: Power Offset for Ubiquit SR71
Replies: 28
Views: 7041

Re: Power Offset for Ubiquit SR71

if you want to be sure u must ask in the ubiquiti forum to Mike specifically, but in XR's cards its showed the correct information,but in other brand doesnt, sorry, but mike is not helpful in this matter. i already started a thread over there and his answer was "ask mikrotik" which is why this thre...
by colebert
Tue Apr 13, 2010 7:21 pm
Forum: Wireless Networking
Topic: 42km PtP Link Problems (RB433AH + R5H)
Replies: 19
Views: 4808

Re: 42km PtP Link Problems (RB433AH + R5H)

I am now using two RB411AH w/ matching SR71-15 on this link. Link is not perfect and signal strength bounces around. Not sure if it's an issue with the cards or what. But if I cap each side at 30M in bandwidth test then it stays solid. If I go higher the cards start out good and then bomb down to a ...
by colebert
Mon Apr 12, 2010 12:22 pm
Forum: Wireless Networking
Topic: R5nH - 1x1 MiMo card...
Replies: 32
Views: 5416

Re: R5nH - 1x1 MiMo card...

I can say I observed similar issues with at least one of my R5nH cards. Sig strength of about -10 less than the rx on what has always been a symetrical link in terms of signal strength. I don't have time to rigorously test all variables as it's a 26 mile link and would require all kinds of driving s...
by colebert
Wed Apr 07, 2010 7:41 pm
Forum: Wireless Networking
Topic: R5nH - 1x1 MiMo card...
Replies: 32
Views: 5416

Re: R5nH - 1x1 MiMo card...

I open the enclosure box, the wireless card is very very hot, it like the R5h, confirmed, card was burned. Aih~.... I have felt for myself how hot these cards get. I literally could not touch the card for 3 minutes after I pulled it. Not just uncomfortably hot. It could have easily given me first d...
by colebert
Wed Apr 07, 2010 8:34 am
Forum: Wireless Networking
Topic: SR71-A Suppport
Replies: 7
Views: 1823

Re: SR71-A Suppport

I wonder if dual-pol, and dual chains would increase the N throughput over distance. I might try that soon, although with 1,000 customers on this backhaul, I may have to wait until an odd time to "play" with the link. Growing pains, right? I can do a long haul dual or triple pol test (if such a bea...
by colebert
Tue Apr 06, 2010 6:41 pm
Forum: Wireless Networking
Topic: R5nH - 1x1 MiMo card...
Replies: 32
Views: 5416

Re: R5nH - 1x1 MiMo card...

It would be interesting how the R52Hn would perform in the same scenario using one chain. As it has much better sensivity it should give better performance. I can grab a couple next time I order, but on this link senstitivty shouldn't be the problem as I should be a solid -63 using these cards on b...
by colebert
Tue Apr 06, 2010 9:48 am
Forum: Wireless Networking
Topic: R5nH - 1x1 MiMo card...
Replies: 32
Views: 5416

Re: R5nH - 1x1 MiMo card...

So far, not great. Alot of my time has been occupied riguring out whether some of the cards I ordered are bad. I get strange signal strength readings that bounce all over the place and the cards get incredibly hot. I don't want to say anything conclusive but so far I have seen nothing to indicate th...
by colebert
Tue Apr 06, 2010 9:28 am
Forum: Wireless Networking
Topic: SR71-A Suppport
Replies: 7
Views: 1823

Re: SR71-A Suppport

Hey Colebert have you found any luck with your situation? I just switched out 2 XR5's on a 12 mile link for 2 SR71-15. The "P Throughput" says 109226kbpx, yet when I push even just UDP tests between the 2, I only peak up to MAYBE 60Mbps. Signal went from -58 with XR5's to -67db with SR71-15's. CCQ ...
by colebert
Tue Mar 30, 2010 7:23 am
Forum: Wireless Networking
Topic: [ASK]Why my RB411AH+R52H can't go further than 23Mbps ?
Replies: 11
Views: 2176

Re: [ASK]Why my RB411AH+R52H can't go further than 23Mbps ?

Yes. Turn down the power until it is in the -50s. That is more thn enough for optimal performance.
by colebert
Tue Mar 30, 2010 6:39 am
Forum: Wireless Networking
Topic: R5nH - 1x1 MiMo card...
Replies: 32
Views: 5416

Re: R5nH - 1x1 MiMo card...

I ordered five units Saturday and should be able to test them later this week on my long ptp links. I will report back when I have more information.
by colebert
Thu Mar 18, 2010 7:53 pm
Forum: Wireless Networking
Topic: Wireless Filters
Replies: 16
Views: 1369

Re: Wireless Filters

Am I correct in assuming that I pick a channel, say 5800, and then get a filter to block out all other channels? Sorry, I missed this part. No, that's not how it works. Channels are totally arbitrary distinctions. Filters don't know anything about channels, just frequencies. If you get a 5.8Ghz fil...
by colebert
Thu Mar 18, 2010 7:49 pm
Forum: Wireless Networking
Topic: Wireless Filters
Replies: 16
Views: 1369

Re: Wireless Filters

really 30-40%, wow thats alot, why is that? thought it was only 2db for the centre channel?
-3db is half so -2db would be 2/3rds of 50% which is 33%
by colebert
Wed Mar 17, 2010 11:47 pm
Forum: Wireless Networking
Topic: Link Long Range
Replies: 8
Views: 2341

Re: Link Long Range

OP, are you me? I also have a 26 mile link I'm trying to get working with 802.11n.

Definitely nstream
Definitely don't both filling out the antenna gain and such
Turn on adaptive noise immunity for "ap & client mode" on both sides
by colebert
Wed Mar 17, 2010 11:42 pm
Forum: Wireless Networking
Topic: Wireless Filters
Replies: 16
Views: 1369

Re: Wireless Filters

I don't know what your application is so I can't acess why and if you need them. But you buy filters with a center frequency and then a range around them. Say a filter with a 5.8GHz center with a 200MHz range would mean the filter would "pass" 5.6GHz to 6.0GHz. Anything outside of that gets attenuat...
by colebert
Wed Mar 17, 2010 3:19 pm
Forum: Wireless Networking
Topic: SR71-A Suppport
Replies: 7
Views: 1823

Re: SR71-A Suppport

We're doing completely different things with our cards. I'm strictly long-distance PtP and you're trying to connect multiple clients. So I'm not sure how much help my findings are going to be. You probably should do what I'm doing... shell out for every possible solution (SR71A, SR71-15, R5nH, R52nH...
by colebert
Tue Mar 16, 2010 1:56 pm
Forum: Wireless Networking
Topic: SR71-A Suppport
Replies: 7
Views: 1823

Re: SR71-A Suppport

I am just starting to play with N equipment. I've tried both SR71-A and SR71-15. I have achieved a working MCS7 link on my 50km 1x1 link with the SR71-15s. I originally used the SR71-As and they did not work, but I am not sure I didn't have a bad card and/or know what I was doing. I originally was u...
by colebert
Fri Mar 12, 2010 11:02 pm
Forum: Wireless Networking
Topic: Power Offset for Ubiquit SR71
Replies: 28
Views: 7041

Re: Power Offset for Ubiquit SR71

I asked at the UBNT forum and they said to ask Mikrotik. I'm having a hard time understanding the 802.11n competely. Here's what I do know. The same link using the same boards and same ROS version produces a stable -55dBm link with a pair of XR5s @ 48mbps. ROS says that speed is +24dBm on my XR5. At...
by colebert
Fri Mar 12, 2010 4:32 pm
Forum: Wireless Networking
Topic: Power Offset for Ubiquit SR71
Replies: 28
Views: 7041

Power Offset for Ubiquit SR71

I have an SR71-15 in a RB600A running ROS 4.6. The Ubiquiti datasheet lists power specs for the various modes. (http://ubnt.com/downloads/sr71_15_ds.pdf) For example, MCS7/MCS15 lists 19dBm. But in ROS the default power rates listed for the card put MCS7/MCS15 at 13dBm. Can I safely raise this power...
by colebert
Thu Mar 11, 2010 3:39 pm
Forum: Wireless Networking
Topic: Point to Point Security
Replies: 6
Views: 841

Re: Point to Point Security

turn on wpa2, there is no loss in bandwidth as far as I can tell.

where do you get 1.1 degree beamwidth antennas?
They are 6GHz waveguide fed andrew dishes I've underbuilt with Mikrotik.
by colebert
Thu Mar 11, 2010 1:58 am
Forum: Wireless Networking
Topic: Point to Point Security
Replies: 6
Views: 841

Re: Point to Point Security

Sorry to hijack this somewhat, but I have wondered about PtP security as well. My PtPs are hundreds of feet in the air, go for an average of 30 miles each, and use dishes with a 1.1 degree beamwidth. Let's assume I didn't hide my SSID, didn't make access lists, and didn't use encryption. How could s...
by colebert
Mon Feb 22, 2010 3:00 am
Forum: Wireless Networking
Topic: Current H/W Solution for RouterBoard+Verizon?
Replies: 3
Views: 686

Re: Current H/W Solution for RouterBoard+Verizon?

Just make sure whatever you buy is Verizon branded. If you buy alot of used don't be surprised to get some equipment that isn't clear to be reactivated due to outstanding bills or being reported stolen. Just file a dispute with paypal and keep on going. Most of the equipment will be fine. Activating...
by colebert
Sun Feb 21, 2010 7:07 pm
Forum: Wireless Networking
Topic: Current H/W Solution for RouterBoard+Verizon?
Replies: 3
Views: 686

Re: Current H/W Solution for RouterBoard+Verizon?

Or is my Verizon rep being, um, less than forthcoming about buying the UM175 from someone other than him? I always recommend buying your equipment from ebay. You stay out of 2yr contracts and basically end up paying the same as you would if you had gotten it "subsidized" through Verizon. Your agent...
by colebert
Sun Feb 14, 2010 2:19 pm
Forum: Wireless Networking
Topic: 42km PtP Link Problems (RB433AH + R5H)
Replies: 19
Views: 4808

Re: 42km PtP Link Problems (RB433AH + R5H)

Want to update this. It is funny how much 7 months of tesing and experience with underbuilding mikrotiks changes your perspective. First, as others mentioned, I needed to filter the very powerful licensed 6GHz signals away from my 5GHz radios. So I bought a bunch of l-com bandpass filters and the pr...
by colebert
Thu Dec 24, 2009 9:39 am
Forum: Wireless Networking
Topic: rb433ah interference between mpci cards
Replies: 75
Views: 18316

Re: rb433ah interference between mpci cards

I have been dealing with this issue lately as well. I wanted to use on RB600A w/ 3 XR5s on a daughter board. Running the XR5s in the same box creates large issues. Each card can "see" the other card w/ -40 to -50 signal strength. Not good. Ended up separating to 1:1 ratio of XR5 to Routerboard and t...
by colebert
Thu Dec 24, 2009 9:30 am
Forum: Wireless Networking
Topic: RB600A Reboots as soon as I run traffic through it
Replies: 13
Views: 2880

Re: RB600A Reboots as soon as I run traffic through it

I'm very sure it's your power supply. I have been playing with RB600's w/ daughterboard and 3x XR5s. If I am not feeding it 48V/1A POE it will power cycle as soon as I start running much traffic through even ONE of the three links. Get a power adapter with some juice... either 48V/1A or 24V/2A
by colebert
Fri Nov 13, 2009 7:58 pm
Forum: Wireless Networking
Topic: LMR400 vs CAT5 for short 900mhz PTP link
Replies: 2
Views: 718

LMR400 vs CAT5 for short 900mhz PTP link

I want to create a short (2-3 mile) PtP link using XR9s. One end will go up maybe 200ft on a tower. The other end will be on top of a small building (maybe 30-40ft.) I have a budget for the tower climbers but my company is very adverse to paying for future climbers so any problems that require them ...
by colebert
Wed Nov 04, 2009 2:08 am
Forum: General
Topic: "Bricked" RB230 while upgrading to 4.2
Replies: 0
Views: 361

"Bricked" RB230 while upgrading to 4.2

I had a working RB230 on 3.30. I saw that the new 4.2 is final so I decided to upgrade. I followed these steps: 1. Upgraded my license key to to the new format 2. Entered the system commands in telnet to upgrade my BIOS/firmware 3. Moved the "combined" package for 4.2 into the CF card through winbox...
by colebert
Sat Sep 26, 2009 11:10 am
Forum: Wireless Networking
Topic: 433AH + XR5 + 3' dish - bandwidth uneven
Replies: 11
Views: 1655

Re: 433AH + XR5 + 3' dish - bandwidth uneven

If your CCQ stays at 100%/100% on both sides while you are doing your TCP tests then we can safely rule out a link issue.

I would then look at perhaps doing a bandwidth test using devices other than the units themselves.

Also, post more about your config and settings.
by colebert
Fri Aug 14, 2009 4:45 pm
Forum: Wireless Networking
Topic: 42km PtP Link Problems (RB433AH + R5H)
Replies: 19
Views: 4808

Re: 42km PtP Link Problems (RB433AH + R5H)

Tested Link #2 and Link #3 yesterday Both ran solid 100% CCQ @54mbps. Tested with TCP & 128bit AES WPA2 encryption enabled LINK #2 (40km): AtoZ=46mbps / ZtoA=46mbps / Bidirectional=60mbps total / power levels between -49 & -53 LINK #3 (38km): AtoZ=46mbps / ZtoA=46mbps / Bidirectional=60mbps total / ...
by colebert
Thu Aug 13, 2009 4:40 pm
Forum: Wireless Networking
Topic: 42km PtP Link Problems (RB433AH + R5H)
Replies: 19
Views: 4808

Re: 42km PtP Link Problems (RB433AH + R5H)

Are you sure my dish is only adding about 30db? Specs I had from Andrew show it is a 41db dish in the 5.9-7.0 range. Would there be that big of drop off down to where my Mikrotiks are living in the 5.7-5.8GHz range? I'm actually getting -53 through -57 on my link @ 36mbps w/ full power. So your free...
by colebert
Wed Aug 05, 2009 10:51 pm
Forum: Wireless Networking
Topic: 42km PtP Link Problems (RB433AH + R5H)
Replies: 19
Views: 4808

Re: 42km PtP Link Problems (RB433AH + R5H)

Ok, just got back from testing. Here is what I have discovered. I think at least one of my original R5H radios were bad. When I replaced the R5H in my master unit with a new R5H the issues with the fluctuating signal strengths disappeared. I also added a 5.8GHz bandpass filter to each side at the sa...
by colebert
Fri Jul 31, 2009 10:00 am
Forum: Wireless Networking
Topic: 42km PtP Link Problems (RB433AH + R5H)
Replies: 19
Views: 4808

Re: 42km PtP Link Problems (RB433AH + R5H)

Can your turn off the 6.9GHz system while you do your testing?
It's a good way to isolate the problem.
I considered that, but I don't want to disrupt the link unless it is my last troubleshooting option. I'm going to try different radios and a bandpass first. Thank you for your suggestion.
by colebert
Fri Jul 31, 2009 9:31 am
Forum: Wireless Networking
Topic: 42km PtP Link Problems (RB433AH + R5H)
Replies: 19
Views: 4808

Re: 42km PtP Link Problems (RB433AH + R5H)

Hey Matt, I brought a picture of the general configuration of our sites. Each site has two microwave radios operating somewhere between 6.5-6.9GHz depending on the license for each link. One receives the signal from the previous site and then the other transmits the signal to the next site. It is on...
by colebert
Thu Jul 30, 2009 1:45 am
Forum: Wireless Networking
Topic: Mikrotik PtP w/ Waveguide Questions
Replies: 5
Views: 1064

Re: Mikrotik PtP w/ Waveguide Questions

Yes, there is a 2 port circulator on every waveguide. One for the 5.8 and one for the 6.5. We recently tested TrangoLink45 units in an underbuild scenario and it worked well without any filtering, etc. Our 6GHz microwave equipment did not suffer any ill-effects... they are old-school analog video mi...
by colebert
Wed Jul 29, 2009 5:32 am
Forum: Wireless Networking
Topic: 42km PtP Link Problems (RB433AH + R5H)
Replies: 19
Views: 4808

Re: 42km PtP Link Problems (RB433AH + R5H)

Why would you directly connect two radios together with a piece of coax? I suspect their output amps are blown but it is possible they survived if they have some kind of protection built in for that. Tom Because I wanted to test them so I would know how to create the link prior to going out to the ...
by colebert
Wed Jul 29, 2009 1:55 am
Forum: Wireless Networking
Topic: 42km PtP Link Problems (RB433AH + R5H)
Replies: 19
Views: 4808

Re: 42km PtP Link Problems (RB433AH + R5H)

I attached a screenshot of my status window. The TX side is going bananas... between -70 and -35 and constantly fluctuating. The RX side stays consistent between -47 and -52. CCQ is always low. Once, when throttling all the way down to 6mbps-only with Nstreme and max power I got 98%/60% CCQ. I canno...
by colebert
Wed Jul 29, 2009 1:18 am
Forum: Wireless Networking
Topic: 42km PtP Link Problems (RB433AH + R5H)
Replies: 19
Views: 4808

42km PtP Link Problems (RB433AH + R5H)

Would like some feedback/suggestions on some problems I'm having creating a point to point link. EQUIPMENT : Two RB433AH Routerboards w/ 3.27 firmware & R5H wireless cards. PATH PROFILE: 42km (26mi). Clear Fresnel and -100 or better noise floor ANTENNAS & CABLES: 10ft Andrew Parabolic (V pol) wavegu...
by colebert
Sun Jul 19, 2009 12:06 pm
Forum: Wireless Networking
Topic: Mikrotik PtP w/ Waveguide Questions
Replies: 5
Views: 1064

Re: Mikrotik PtP w/ Waveguide Questions

Thank you for your reply. Ok, so maybe that won't work. Should there be any problem with burn out putting the 5.8 on the same waveguide as the 6.5-7.0GHz frequencies without a bandpass? I would certainly like to use separate dishes but tower climbers cost far more money than any parts I can install ...
by colebert
Sun Jul 19, 2009 3:57 am
Forum: Wireless Networking
Topic: Mikrotik PtP w/ Waveguide Questions
Replies: 5
Views: 1064

Mikrotik PtP w/ Waveguide Questions

First time Mikrotik user. Excellent looking product! I have bought two RB433AH units to test a PtP relay (over 200 miles in total distance) I am attempting to implement for my company. That distance is broken into a series of six relay links (between 25 and 40 miles each) that connect our branch off...