MikroTik

budi_a

Cards based on the Atheros 5211 chipset (b/a) -- so you would only be able to use 'b' in 2.5GHz. Thx. Which of the following may fall under the 5211 chipset category: CM9 NL-5354MP SR2 NMP-8602 If none, please advise brands that do. - Nortel based cards (old ones) - Old Ambit - Philips based cards ...

budi_a

Hi all, Can those who have put in real-life Nstreme links at long range (20 - 50 miles) indicate what latency (msec) you are seeing on the links? We have a possible customer who is asking. AFAIK it will depend on CPU speed, modulation rate/setting, and Frame size. We have the short-range (<10km) re...

budi_a

kernel upgrade, support for multi-core and multi-processor systems, SATA native support, more ram support, many more improvements and new features ... Dear Normis, if you need beta tester user for CSMA/CA and nstreme option, we could help beta test them :) We had many situation where we had go head...

budi_a

well, autumn was meant for beta. the actual release depends on how the beta comes out.

Dear normis, could you enlighten your user here,
what we could expect (in featureset) what is the differences
between 2.9.x to 3.x ?

Thx
//Budi

budi_a

Use :

- DC Grounded Omni
- Use Ethernet surge protector

- Ground your :
- board
- enclosure
- antenna mounting
- etc.

Thx
//Budi

budi_a

Do note the risk of "self-interference" if any of the cards are on adjacent frequencies: a big "don't" for doing that. It also matters "which card", some are more prone to interference as the filters on CM9s and clones are worse than later R52 and clone chipsets, which...

budi_a

Using the SR9 in anything other than the regualr 2.4 mode is like trying to do a long range 'G' connection, and I dont know about anybody else, but I have never been able to accomplish that.

I could establish 100km link with 8 mbps
bandwidth with g only mode.

Thx
//Budi

budi_a

No theres not any advantage to me doing 2.4Ghz, other then the fact that there is so much noise in 2.4 that it,s not going to be a ptmp spectrum that I will use anytime soon. And I am using 5.x for the ptmp links and I wanted to save as much of that as possiable. We have a few wisps in the city tha...

budi_a

Budi, pls be more specific. With static discharge, you probably think of one of these cases: a) static discharge, while I'm handling the card: I'm handling a lot of cards and routers. Why is it only R52 on a few of them that can't stand my treatment ? Hmm, this is maybe, but very little chance, it ...

budi_a

Hello We have a number of R52 sitting on RB532 boards, running as AP (2.9.27). On a few of these, we have seen significantly loss of power and sensitivity after some weeks in good operation. The problem comes gradually, and the signal loss is at least 10 dB. It looks like bad pigtail/cable/antenna,...

budi_a

Check for your CM9 position in mpci slot,
are your cm9 mpci doesn't sit tight in slot ?

Thx
//Budi

budi_a

Hi, any body can say me why my Wrapboard with Mikrotik 2.9.17 don´t recognize the minipci nmp8602, i had tried with 2 units differents and level is 0, i want stay sure before buy the level 4.

Thanks

EMP-8602 is atheros AR-5006X chip (single chip),
update your wrap bios to 1.11.

Thx
//Budi

budi_a

cpu limited?

Yes.

Thx
//budi

budi_a

What kindof throughput can i expect for two wraps(233 or 266mhz/ 64mb or 128mb of ram) with 1 sr5 per wrap in WDS? i know on rb532 i can get ~23mb, but due to unavailability of rbxxx i must use wraps.

Around 20's Mbps stable tops.

Thx
//Budi

budi_a

Guys, Have any of you notice TX Power problem and have any occurence of mini pci card damages, when you using default tx-power-mode ?? I'm a little afraid with MT tx-power-mode default because when we're monitor using /interface wireless monitor wlan0 it said its tx-power from 6 Mbps a/g mode is 26-...

budi_a

Dear Dbostrom : May i ask you what mode of TX-power that do you use ? - default - all-rate-fixed - card-rates ? And in your conclusion : a. first time invoking 5 mhz channel change tx power from 18 to 20 ? b. second time invoking, third, fourth, and so on doesn't invoking change in tx-power ??? PS :...

budi_a

What was your power level on the card??? I think you must contact Mikrotik (support@mikrotik.com) Dear Normis & Uldis , I'm curious why if i'm setting the tx-power-mode to default, and i'm doing /interface wireless monitor wlan0 as example it shows that default power is very high ? eg : -26 dB ...

budi_a

Dear DirectWireless,

Doing a scan for limited time, eg ( 5 sec) or
doing /interface wireless frequency-monitor once,
seems doing the trick too.

Could you write the script, that do the same,
but instead changing frequency, its
doing frequency monitor once.

Thank's
//Budi

budi_a

Thank you for your kind explanation, i have been thinking of using 802.11a as my ap but i am hard to find the CPE, i think i need to buy some wifi card from mikrotik for this :) We think we could help. We had CPE for 802.11a. They could be used until 10km with good result, 7-8 Mbps real troughput (...

budi_a

Dear Guys, I'm looking at /system resource print interface, and some issues that i would like to get clarification is : After a few reboot (2-3 times) for exact, Writes-sector-after-reboot have reached 244 (for 5mins uptime) and Writes-sector-total have head reached 15496 sector.. We don't change an...

budi_a

I have client who is cyber cafe (about 20-30 computers behind each client). What should i do if i wish to deliver best performance for them? What i have seen in mikrotik is that each client would use up to 100-200 packet persecond, It's means after 2 clients you would surpass protocol limitation fo...

budi_a

I found what my problem was. 2 bridges back to back. 1 5.8 Turbo at 5765 Other 5.8 at 5825. I disabled turbo and pushed it to 5745 and both links are good. If I wanted to run turbo on both, what kind of freq separation would I need? About 40 MHz. But remember, the freq you mention is the center fre...

budi_a

THank you for your reply, is there any calculating method about how many pps a device could handle? If i use mikrotik RB 500, does it have higher pps transfer rate? How can i know if a RB500 is overload? Is it from the CPU load? PPS in wireless is more depend on protocol limitation, as example : Us...

budi_a

Hi, I am considering replacing a lot of Linksys AP's with MT AP's in the above configuration. I will use 12-15Dbi Omnis to serve customers within 1km range (2.4Ghz).. How well is the above system performing compared to Linksys? I have quite good range on the Linksys routers setting Xfer power to 24...

budi_a

I wish to know whether using mikrotik i could handle more client that has many computers behind the client, because that's what i wish to do with it. Any suggestion? I need more advice, thank you very much. The reason that i put 7 AP on 1 tower is that i couldn't deliver good performance to my clie...

budi_a

For the record - working very hard !!

Thanks MT guys..

Regards, Bill.

Dear All, all this atheros disconnection problem,
especially in WDS mode, have been resolved
in MT 2.9.6 ?

Thank you very much
//Budi

budi_a

Antena---->coax------>Lighting arrestor(*)---->Routerboard(*)----->Outdoor PoE protector(*)------>Indoor PoE protector(*)------>Inyector------>120 VAC protector and Ethernet protector(*). (*)All this component, connect to common ground. This common ground is the same of the building. Both routerboa...

budi_a

Dear All,

What's step / technique do you think most effective
in order to prevent equipment damage (wireless & routerboard)
from : ESD, EMI, lightning strikes (indirect) ?

Please share your usuall step, trick, secret, and
your experience regarding it ?

Thank you very much...

//Budi

budi_a

well, it should be fine. without tunnels, extensive queues, firewall, BGP the router will run happily even in 32MB. but i would not suggesst to use 2.8 at all :) , everybody should upgrade to 2.9 Dear Lastguru, We're have been afraid to upgrade to 2.9.x because stability issues... We're hearing man...

budi_a

newer version, 2.9 works very good on 32MB of memory. It has special optimization to minimize memory footprint Dear Lastguru, Are this mean MT 2.8.x version is not good (no go) for board with only 32MB DRAM for long range wireless bridge (WDS with atheros chipset) ? Thank you very much... //Budi

budi_a

Dear All, What do you think of stability (because limited RAM avaliable) only 32MB in OEM board (X86/Geode) Do you think MT (2.8.x), 2.8.26 for exact, could perform well and stable for Wireless AP / Wireless P-t-P (WDS) running Atheros 5213 in 2.4 or 5 Ghz band without any unused service running, e...

budi_a

Dear All, What do you think of stability (because limited RAM avaliable) only 32MB in OEM board (X86/Geode) Do you think MT (2.8.x), 2.8.26 for exact, could perform well and stable for Wireless AP / Wireless P-t-P (WDS) running Atheros 5213 in 2.4 or 5 Ghz band without any unused service running, eg...

budi_a

Dear Stephen,

If i may ask,
Do you have any news perhaps,
regarding sharing some config ideas ?

Thx a lot
//Budi

budi_a

Sptehen, Could you sharing some trick perhaps, how to improve troughput ?? In MT 2.8 ??? Beside : 1. Lock radio rate to one lower than the max 2. Disable connection tracking 3. Enable fast frames I'm couldn't get the rate that i'm hoping to get.. What version of MT (2.8.x) that have the best Atheros...

Search found 34 matches

Re: Nstreme question: what latency at long range?

Re: Wireless card recieve blows issue

Re: R52 as b/g AP loosing power/sensitivity

Re: No wlan interface for CM9

Re: Problems with Nmp-8602

Re: wrap w/sr5 throughput

Re: A script for signal fade problems requiring freq change

MT 2.9.x Flash wearing out issues ?

Re: RB532 Atheros 65mw as AP

Re: See diagram

Grounding Issue / Prevent Equipment Damaged from Lightning

Re: Mikrotik Stability in Geode Board with limited RAM (32MB

Mikrotik Stability in Geode Board with limited RAM (32MB)