Community discussions

MikroTik App

Search found 45 matches

by Sergio72
Tue Oct 28, 2014 4:00 pm
Forum: Wireless Networking
Topic: 802.11ac tests results and opinions
Replies: 22
Views: 7965

Re: 802.11ac tests results and opinions

Some tests from our network:
If you like it, give me some Karma points :D
Hi czolo,

What distance did you have there and which antennas have you used ?
by Sergio72
Mon Oct 28, 2013 5:21 pm
Forum: Wireless Networking
Topic: MIMO 4x4
Replies: 5
Views: 2390

Re: MIMO 4x4

Sounds not good, I hoped I would be able to solve it on MikroTik soft and stuff... Maybe MT guys can say something for that issue ? Is it possible in MT or not ?
by Sergio72
Sat Oct 26, 2013 12:40 am
Forum: Wireless Networking
Topic: MIMO 4x4
Replies: 5
Views: 2390

MIMO 4x4

We have a customer who wants us to provide internet to moving train. I have read about comparable solution here http://www.wireless-instruments.com/en/18/moscow-subway-wibox-antenna-with-cisco-mimo-4x4-access-points-installation.html. Generally I'm not going to use Cisco, I'd like to do it using Mik...
by Sergio72
Fri Sep 13, 2013 9:10 pm
Forum: Wireless Networking
Topic: First Mikrotik RouterBOARD with MIMO 4x4 support ?
Replies: 6
Views: 2735

Re: First Mikrotik RouterBOARD with MIMO 4x4 support ?

As we discuss about this radio... do MT plan to develop 3x3 and 4x4 radios ?
by Sergio72
Tue Jul 09, 2013 7:16 am
Forum: General
Topic: RB911G-5HPnD NIC Issues
Replies: 14
Views: 3161

Re: RB911G-5HPnD NIC Issues

911G-5HPnD is high-power unit, isn't it a problem of overheating ? Try to use bigger enclosures for the installation, or make some ventilation like a fan or something.
by Sergio72
Tue Jul 09, 2013 6:27 am
Forum: RouterBOARD hardware
Topic: Failure of the R5SHpn radio cards
Replies: 3
Views: 1871

Re: Failure of the R5SHpn radio cards

Maybe some ventilation is needed ? Come on, there is a big radiator (heat sink), how can it work properly when it can't radiate like in small itelite enclosures ? IMO you need more space like in, let say, WiBOX system, which I use in my installations http://www.wireless-instruments.com/en/produkty/1...
by Sergio72
Tue May 14, 2013 1:41 pm
Forum: Wireless Networking
Topic: Throughput over 300Mbps on MIMO 2x2 ???
Replies: 53
Views: 13793

Re: Throughput over 300Mbps on MIMO 2x2 ???

Can you specify channeling on ISM band ? Or where it is written you have to use some specific channel spacing? 60MHz is nothing else than 3x20MHz. Nstreme and NV2 is not 802.11N either and who cares ? So... Can you take all range of 5,1-5,9 GHz ? It's k x 20MHz :) The regulations concerns only the ...
by Sergio72
Tue May 14, 2013 10:39 am
Forum: Wireless Networking
Topic: Throughput over 300Mbps on MIMO 2x2 ???
Replies: 53
Views: 13793

Re: Throughput over 300Mbps on MIMO 2x2 ???

I can do it as described in this link http://www.wireless-instruments.com/en/13/can-you-imagine-link-over-300-mbps-with-routerboard-and-mimo-2x2-antenna-.html , but what about possible controll of the telecomm agency ? 60 MHz channel isn't the standard of 802.11n ! Won't it bring problems to the WI...
by Sergio72
Thu May 09, 2013 4:34 pm
Forum: Wireless Networking
Topic: Throughput over 300Mbps on MIMO 2x2 ???
Replies: 53
Views: 13793

Re: Throughput over 300Mbps on MIMO 2x2 ???

it is a translation mistake. The pictures clearly show the speed to be 298Mbits. The text which says "speed over 300Mbit" should say "speed of 300mbit"
True... but it's shown Tx/Rx Rate of 320mbps...

But doesn't matter, theoretical max is 300 :)
by Sergio72
Thu May 09, 2013 3:47 pm
Forum: Wireless Networking
Topic: Throughput over 300Mbps on MIMO 2x2 ???
Replies: 53
Views: 13793

Throughput over 300Mbps on MIMO 2x2 ???

Hi, I got an e-mail from WI with a link to some customer story or something like that. It would be nothing special, but the text describes the connection of 2x2 that can exceed 300Mbps. As far as I know 300Mbps is the theoretical max I can get from MIMO 2x2. http://www.wireless-instruments.com/en/13...
by Sergio72
Thu May 09, 2013 2:46 pm
Forum: RouterBOARD hardware
Topic: RB2011UAS-2HnD-IN additional external antenna
Replies: 15
Views: 8116

Re: RB2011UAS-2HnD-IN additional external antenna


For example this high gain antenna has SMA connector, you would need MMCX to SMA adatper:
http://www.aliexpress.com/item/Free-Shi ... 54033.html
20dBi dipole antenna... good grief ! :)
by Sergio72
Thu May 09, 2013 2:08 pm
Forum: General
Topic: www.mikrotik.com
Replies: 9
Views: 1433

Re: www.mikrotik.com

Haven't you paid the domain registry fee ? :D joking...
by Sergio72
Fri Mar 22, 2013 7:22 pm
Forum: Wireless Networking
Topic: Need Help on 3.5 KM PtP urban link.
Replies: 10
Views: 1746

Re: Need Help on 3.5 KM PtP urban link.

SXT G-5HnD should be ok for that distance, but doesn't guarantee anything. In urban area where is a lot of 5 GHz stations there can be strong interference. If you aren't able to set up MT, ask for the help MT consultants http://www.mikrotik.com/consultants.html or QuickSet.
by Sergio72
Thu Mar 21, 2013 8:17 am
Forum: Wireless Networking
Topic: 3x3 & 6x6 MIMO
Replies: 21
Views: 9411

Re: 3x3 & 6x6 MIMO

To be sure 6x6 is not possible in 802.11n standard, unless you meant 2 x MIMO 3x3.

6x6 is possible in 802.11ac standard for example, but I think that making good antennas for that band would be a bit problematic.
by Sergio72
Thu Mar 21, 2013 8:09 am
Forum: Wireless Networking
Topic: Omni antenna - horizontal or vertical polarization?
Replies: 4
Views: 2648

Re: Omni antenna - horizontal or vertical polarization?

No offence, I took it wrong :) You are right.

But in general there is no sense to rotate omni antenna.
by Sergio72
Thu Mar 21, 2013 1:40 am
Forum: Wireless Networking
Topic: 3x3 & 6x6 MIMO
Replies: 21
Views: 9411

Re: 3x3 & 6x6 MIMO

The good antenna is a key in MIMO 3x3. There is only few companies which offer this solution. I don't know anyone who uses Lanbowan, I know that CyberBajt ready solution works. The problem is with range and the final price, and the throughput of 450Mbps is in theory only I remind :) 3x3 needs to be ...
by Sergio72
Thu Mar 21, 2013 1:32 am
Forum: Wireless Networking
Topic: which mikrotik product i use for isp setup
Replies: 5
Views: 1470

Re: which mikrotik product i use for isp setup

Too short info... provide with more details... topography, expected users number etc.
by Sergio72
Thu Mar 21, 2013 1:28 am
Forum: RouterBOARD hardware
Topic: RB411 + r52hn wireless detecting problem
Replies: 1
Views: 926

Re: RB411 + r52hn wireless detecting problem

Check the radio card first, maybe it's broken...
by Sergio72
Thu Mar 21, 2013 1:06 am
Forum: Wireless Networking
Topic: What to use for CPE for PTMP?
Replies: 6
Views: 1470

Re: What to use for CPE for PTMP?

We had few SXT which had problems with waterproofing.

I would like to ask you another question, because you mentioned about PTMP network, is the 60 deg enough for your application ?
by Sergio72
Thu Mar 21, 2013 12:54 am
Forum: Wireless Networking
Topic: Omni antenna - horizontal or vertical polarization?
Replies: 4
Views: 2648

Re: Omni antenna - horizontal or vertical polarization?

Hehe, why do you think the gain will be changed ?:) Omni in different settings, so for example V (normally) in horizontal position won't be omni in horizontal in my understanding. For example the antenna has horizontal beamwidth 360degrees (as normally omni should have) and 8 degrees in vertical. Wh...
by Sergio72
Thu Mar 21, 2013 12:46 am
Forum: General
Topic: Intel DN2800MT + SFP card
Replies: 3
Views: 1512

Re: Intel DN2800MT + SFP card

Some supply converter and PSU 48V.
by Sergio72
Thu Mar 21, 2013 12:28 am
Forum: RouterBOARD hardware
Topic: Hardware of RouterBoard vs PC
Replies: 7
Views: 4811

Re: Hardware of RouterBoard vs PC

PC is much more efficient (depends on PC), but how it will operate outdoor ?

Standard PC boards are not designed to work outdoor in contradistinction to MikroTik RouterBoards. It's not about waterproofing, it's on the temperature, humidity etc. Another thing is power supply for PC, not PoE.
by Sergio72
Thu Mar 21, 2013 12:12 am
Forum: Wireless Networking
Topic: 3x3 & 6x6 MIMO
Replies: 21
Views: 9411

Re: 3x3 & 6x6 MIMO

There is few ready solutions for MIMO 3x3 as CyberBajt for example http://www.cyberbajt.com/en/shop_item/3324/pan_519mimo_3x3.html. Also Wireless Instruments has an antennas for MIMO 3x3 http://www.wireless-instruments.com/en/produkty/15/15/antennas-5ghz/mimo/directional/wibox-pa-d3m5-18hv.html. The...
by Sergio72
Mon Mar 11, 2013 12:58 pm
Forum: Wireless Networking
Topic: 35KM PTP Link
Replies: 12
Views: 4121

Re: 35KM PTP Link

35km can be complicated, for sure you need some high-gained antennas. On the market there is few good antenna producers who offer dual polarity dish antennas like Cyberbajt, Jirous or UBNT. From these three CyberBajt and Jirous have better parameters than UBNT, but UBNT has 34 dBi antenna (CB and J ...
by Sergio72
Mon Mar 11, 2013 12:49 pm
Forum: Wireless Networking
Topic: Need Help on 3.5 KM PtP urban link.
Replies: 10
Views: 1746

Re: Need Help on 3.5 KM PtP urban link.

Jirous or Cyberbajt dual polarity parabolic antenna http://www.cyberbajt.com/en/shop_item/3 ... b_box.html. As far as I know Jirous have some original plastic boxes to be used with parabolics. Plastic with some shielding inside also would be ok.
by Sergio72
Thu Mar 07, 2013 10:49 pm
Forum: Wireless Networking
Topic: 6Ghz MIMO 2x2
Replies: 24
Views: 6413

Re: 6Ghz MIMO 2x2

by Sergio72
Wed Mar 06, 2013 12:49 pm
Forum: Wireless Networking
Topic: WimaX support
Replies: 0
Views: 981

WimaX support

I linked with some post from Begginers Basic section regarding Wimax support in MT, but there are no people to see it probably. I decided to publish it here. Some guy asked for Wimax and MT, got answer that MT won't support Wimax. I'd like to continue this thread, does anyone know what software woul...
by Sergio72
Wed Mar 06, 2013 12:01 am
Forum: Beginner Basics
Topic: WiMax Support? (follow up to the posts in past years)
Replies: 3
Views: 892

Re: WiMax Support? (follow up to the posts in past years)

I'd like to continue this thread, does anyone know what software would be great to support these boards that John mentioned (WaveSat NP7256 or SQN-2130) ? I need to create client devices for my customer, and I'm looking for good electronics for WiMax. I need to have something like this http://www.gr...
by Sergio72
Fri Mar 01, 2013 10:19 am
Forum: Wireless Networking
Topic: Full Duplex MIMO link...
Replies: 13
Views: 4043

Re: Full Duplex MIMO link...

2,5 km it's not far away, use some dual polarity antenna with box and RB711G-5HnD. I have dual polarity WiBOX antennas, worth to recommend -> http://www.wireless-instruments.com/en/ ... -20hv.html .
by Sergio72
Thu Feb 28, 2013 12:07 pm
Forum: Wireless Networking
Topic: Anyone tested this sector/housing system
Replies: 6
Views: 1458

Re: Anyone tested this sector/housing system

Yes, separation between polarizations is very important in MIMO antennas. Especially for some functions as spatial multiplexing when you don't have any reflecting elements. I don't know RF Elements antennas, but if you write they don't work, I will notice it. For MT embeded products the best are int...
by Sergio72
Thu Feb 28, 2013 1:52 am
Forum: Wireless Networking
Topic: Connecting two sector antennas to one RB/711
Replies: 3
Views: 1440

Re: Connecting two sector antennas to one RB/711

Hi Guys, I think i've made a small mistake ordering the wrong stuff, but I was wondering if I can make it work.. I'm building a low speed wireless network for an open terrain, so i ordered the RB/711 and two Sector antennas (http://shop.meconet.de/Antennas-Accessories/2-4-GHz-ISM/WLAN/Sector-Antenn...
by Sergio72
Thu Feb 28, 2013 1:45 am
Forum: Wireless Networking
Topic: RB800 3X3 minipci card
Replies: 46
Views: 15458

Re: RB800 3X3 minipci card

175cm dish... what a great sail... it will be blown off from the mast on the first storm.

And forget about MIMO 3x3 on 49km, but please share your test results here.
by Sergio72
Thu Feb 28, 2013 1:31 am
Forum: Wireless Networking
Topic: 80 miles link only 160 mb throughput
Replies: 19
Views: 3840

Re: 80 miles link only 160 mb throughput

pls provide to metal case...

thanks
Exactly.
by Sergio72
Thu Feb 28, 2013 1:23 am
Forum: Wireless Networking
Topic: MiniPci 802.11 N 2x2 Mimo
Replies: 16
Views: 3932

Re: MiniPci 802.11 N 2x2 Mimo

The radiation pattern very interesting... it's right... :)
by Sergio72
Thu Feb 28, 2013 1:22 am
Forum: Wireless Networking
Topic: MiniPci 802.11 N 2x2 Mimo
Replies: 16
Views: 3932

Re: MiniPci 802.11 N 2x2 Mimo

1,8m diameter and 38 dBi gain... In the past (6-7 years ago) I had 1,5m dish, I used it in 2,4 GHz. We have very great antenna gain and the link was really impressive. But the most impressive was the dish "flight" when wind blew it off from the mast. Hopefully noone was hurt... On the market there a...
by Sergio72
Thu Feb 28, 2013 1:12 am
Forum: Wireless Networking
Topic: Can SEXTANTG connect for 20KM distance point to point?
Replies: 5
Views: 1301

Re: Can SEXTANTG connect for 20KM distance point to point?

You should use some parabolic dual pol. antenna (Jirous/CyberBajt). SEXTANT has too weak antenna. If you like panels use http://www.wireless-instruments.com/en/ ... -24hv.html, we used them for two point-to-point links.
by Sergio72
Thu Feb 28, 2013 1:09 am
Forum: Wireless Networking
Topic: Need Help on 3.5 KM PtP urban link.
Replies: 10
Views: 1746

Re: Need Help on 3.5 KM PtP urban link.

But... what are you going to do exactly ? MIMO uses reflections, so 711 "n" seems to be a good choice. Remember that 22 dBi antenna would be quite big, are you going to use parabolic antennas ?

What antennas uses your ISP on the base station ?
by Sergio72
Thu Feb 28, 2013 1:02 am
Forum: Wireless Networking
Topic: Anyone tested this sector/housing system
Replies: 6
Views: 1458

Re: Anyone tested this sector/housing system

Take a look on this solution http://www.wireless-instruments.com/en/produkty/14/49/antennas-5ghz/mimo/sector/wibox-sa-m5-45-19hv.html, we used few different solutions, but I have changed for WiBOX. We have bought dual polarity panels from them, they are much better than every antennas we have used b...
by Sergio72
Thu Feb 28, 2013 12:42 am
Forum: RouterBOARD hardware
Topic: Suggest directional antenna for RB751?
Replies: 4
Views: 1019

Re: Suggest directional antenna for RB751?

Check this out http://www.wireless-instruments.com/en/ ... -5-20.html

I have used dual polarity antennas from WiBOX, but I have have spoken with WISPs who used single polarity.

Nice design.
by Sergio72
Thu Feb 28, 2013 12:11 am
Forum: RouterBOARD hardware
Topic: CPE 2x2 MIMO with RB711G-5HnD
Replies: 7
Views: 1730

Re: CPE 2x2 MIMO with RB711G-5HnD

Hi BrinkNetworks, We have just tested 2 types of their panels, and we are very satisfied, one is: http://www.wireless-instruments.com/en/produkty/15/44/antennas-5ghz/mimo/directional/wibox-pa-m5-20hv.html 20 dBi and the second http://www.wireless-instruments.com/en/produkty/15/45/antennas-5ghz/mimo/...
by Sergio72
Mon Feb 18, 2013 10:41 am
Forum: RouterBOARD hardware
Topic: CPE 2x2 MIMO with RB711G-5HnD
Replies: 7
Views: 1730

Re: CPE 2x2 MIMO with RB711G-5HnD

The antennas have arrived few minutes ago. Looks impressive (really high-quality), a lot of installation space, huge and solid holder (with the scale, made from fiber glass as the manufacturer informs). I have bought http://www.wireless-instruments.com/en/produkty/15/45/antennas-5ghz/mimo/directiona...
by Sergio72
Wed Feb 13, 2013 5:07 pm
Forum: RouterBOARD hardware
Topic: Hardware for ISP - quality of RB
Replies: 5
Views: 1626

Re: Hardware for ISP - quality of RB

Hi, in recent times we have so many prolems with Routerboard HW. RB 800 (many boards, ROS 5.22) 1. bloated capacitors - many routerboards 2. overheating 3. sometimes is wireless visible (R52n), sometimes is not 4. totally frozen (ping watchdog is not work) If you have the problem with overheating t...
by Sergio72
Wed Feb 13, 2013 12:57 pm
Forum: RouterBOARD hardware
Topic: Schematics for RB112
Replies: 11
Views: 2585

Re: Schematics for RB112

RB112 seems to be like a relic :) I have few RB512 on my desk, still working :) Write if you have successfully reanimated RB112.
by Sergio72
Wed Feb 13, 2013 11:49 am
Forum: RouterBOARD hardware
Topic: CPE 2x2 MIMO with RB711G-5HnD
Replies: 7
Views: 1730

Re: CPE 2x2 MIMO with RB711G-5HnD

I considered Jirous antenna that you have proposed, but I was looking for something cheaper. After searching at made for mt I placed an order in iWave for -> http://www.wireless-instruments.com/en/produkty/15/44/antennas-5ghz/mimo/directional/wibox-pa-m5-20hv.html . The WiBOX series seems to be a go...
by Sergio72
Mon Feb 11, 2013 1:57 pm
Forum: RouterBOARD hardware
Topic: CPE 2x2 MIMO with RB711G-5HnD
Replies: 7
Views: 1730

CPE 2x2 MIMO with RB711G-5HnD

I'm looking for a good solution for point to point link. I have considered SEXTANT G-5HnD, but apart from interesting forst part of the name, the antenna appears to be too weak for my application. I'm looking for same antenna dual polarity with the gain of 20-22dBi, I plan to use RB711G-5HnD, I thin...