Community discussions

MUM Europe 2020

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by chainsawman
Fri Aug 27, 2010 6:10 pm
Forum: RouterBOARD hardware
Topic: Firmware upgrade without PoE port.
Replies: 6
Views: 2128

Re: Firmware upgrade without PoE port.

But then is there any other possibility?
by chainsawman
Fri Aug 27, 2010 12:49 am
Forum: RouterBOARD hardware
Topic: Firmware upgrade without PoE port.
Replies: 6
Views: 2128

Firmware upgrade without PoE port.

We did the firmware upgrade of a RB600 from version 3.30 to 4.11. We went back to 3.30 and upgraded again to 4.11, but now we can no longer access to the RB. The RB starts and hangs at the login screen. After a few seconds it reboot. I thought about upgrading the RB through Netinstall, however, it w...
by chainsawman
Mon Aug 09, 2010 10:19 pm
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 78485

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

Currently NV2 works perfectly for me.
Even the links that were not functioning due to interference now are ok.


Is there any provision for correction of WDS?
by chainsawman
Sat May 22, 2010 1:34 am
Forum: Wireless Networking
Topic: Problem. Solving 30km 11N wireless link issues.
Replies: 7
Views: 2764

Re: Problem. Solving 30km 11N wireless link issues.

Since yesterday I'm testing this new link, but without success. We are using cables LMR-400, 1.5 m long. This is just a PtP link. I tried to set: 5ghz, 5ghz-an, 5ghz-only; various combinations of HT-MCS; 11A data rates disabled / enabled (enabled is better); ht-txchains=0,1 ht-rxchains=0,1; ht-txcha...
by chainsawman
Fri May 21, 2010 2:23 pm
Forum: Wireless Networking
Topic: Problem. Solving 30km 11N wireless link issues.
Replies: 7
Views: 2764

Re: Problem. Solving 30km 11N wireless link issues.

I believe that just changing the data rates will not solve the problem, because even the 11A is not working properly.

Before performing the modification of antennas and cards, we had 29dbi antennas with XR5 cards and link worked perfectly, reaching 20Mbps tx and rx in 5ghz-turbo.
by chainsawman
Fri May 21, 2010 12:41 am
Forum: Wireless Networking
Topic: Problem. Solving 30km 11N wireless link issues.
Replies: 7
Views: 2764

Problem. Solving 30km 11N wireless link issues.

Hello. We are setting a new link using 802.11N. The calculations performed prior to implantation in the link indicated that it would be completed smoothly, as you can see in the picture attached: http://img199.imageshack.us/img199/9122/enlacet.png After the installation is complete, the signal stren...
by chainsawman
Thu Mar 18, 2010 4:16 pm
Forum: RouterBOARD hardware
Topic: RB600 missing from Routerboard.com
Replies: 19
Views: 5247

Re: RB600 missing from Routerboard.com

sorry we have not tested in such harsh environment specifically with no fan. you will have to test. in any case, ANY hardware should have some cooling mechanism at +40C :? RB600A: -20°C to +65°C RB800 -75℃ to +65℃ Considering the specifications, the temperature range for my case will be the same. A...
by chainsawman
Thu Mar 18, 2010 3:52 pm
Forum: RouterBOARD hardware
Topic: How can I repair rb433ah?
Replies: 12
Views: 3178

Re: How can I repair rb433ah?

Rafaela, tmb tenho problemas com RBs minhas que queimam. Enviei allgumas aqui para uma assistência técnica de placas-mãe na minha cidade, mas ainda não tive nenhuma resposta deles. Mas sei que existe um empresa em SP que realiza conserto de RBs. Segue o contato: ForService Repair Center (11) 2605-23...
by chainsawman
Thu Mar 18, 2010 3:04 pm
Forum: RouterBOARD hardware
Topic: RB600 missing from Routerboard.com
Replies: 19
Views: 5247

Re: RB600 missing from Routerboard.com

It works perfectly without fan. We tested it with a heatsink for more than 24 hours at full load. The temp was higher, but it worked no problem. So if you want, you can replace the fan with some kind of heatsing (the bigger the better). You tested the Rb800 on temperature of your country, right? He...
by chainsawman
Tue Sep 29, 2009 6:42 pm
Forum: Wireless Networking
Topic: Ideal Signal Strength in a PMP 5.8Ghz wireless cell
Replies: 2
Views: 767

Re: Ideal Signal Strength in a PMP 5.8Ghz wireless cell

opa...

acredito que de -75 pra cima ja tá de bom tamanho.
tenho clientes que se conectam bem -78 ~ -76, então eu usaria o -75 como parâmetro.
by chainsawman
Tue Sep 15, 2009 3:41 pm
Forum: Wireless Networking
Topic: AP with 3 Omni Antennas
Replies: 8
Views: 1184

Re: AP with 3 Omni Antennas

The idea is that it has 3 frequencies radiating in all directions in non-ovelapping channels, then we can have greater amount of subscribers and a choice of 3 channels to work. Will use the same SSID in all sectors; rules will be added in the "Access list" that will limit customers to connect if the...
by chainsawman
Mon Sep 14, 2009 9:26 pm
Forum: Wireless Networking
Topic: AP with 3 Omni Antennas
Replies: 8
Views: 1184

Re: AP with 3 Omni Antennas

In our case, it would be interesting customers migrate sector automatically in case of interference. And in some regions there are large number of customers and in others not. If I used panels, 1 or 2 would be overcrowded and others without customers. What I can not understand is why, technically, I...
by chainsawman
Thu Sep 10, 2009 1:41 am
Forum: Wireless Networking
Topic: AP with 3 Omni Antennas
Replies: 8
Views: 1184

Re: AP with 3 Omni Antennas

Thanks Eric. :D The problem is we already have 50~70 clients connected to this AP, then switch to horizontal will become difficult. And I see no advantage in switching to horizontal because the interferece is also large. In addition, our CPEs do not support this function that you mentioned. CPEs are...
by chainsawman
Tue Sep 08, 2009 11:16 pm
Forum: Wireless Networking
Topic: AP with 3 Omni Antennas
Replies: 8
Views: 1184

AP with 3 Omni Antennas

Hello We have an AP overcrowded with customers. Then came the idea of putting 3 Omni in 2.4GHz, using non-overlapping channels = 2412, 2437 and 2462MHz. In addition to overcrowding, we also have many problems with interference because the laws of RF here are not respected in my country. So the idea ...
by chainsawman
Wed Aug 12, 2009 6:26 pm
Forum: Wireless Networking
Topic: Interesting wireless links
Replies: 11
Views: 5711

Re: Interesting wireless links

Funny Car-to-car Wireless Network:
http://www.youtube.com/watch?v=hp72RbwDW80
by chainsawman
Wed Jun 24, 2009 1:05 am
Forum: The Dude
Topic: Show us your map
Replies: 60
Views: 44880

Re: Show us your map

Sorry for bad quality.
The image is too large then it will not fit on the screen when the zoom is greater than that.
Our network is not yet complete.
I will post updates as soon as possible.
by chainsawman
Tue Jun 23, 2009 11:53 pm
Forum: Wireless Networking
Topic: Dual polarization antennas or two antennas in one unit
Replies: 75
Views: 43976

Re: Dual polarization antennas or two antennas in one unit

hello marksx. we had problems in setting up links using dual-polarization antennas. tested various channels, different configurations of tx power, always getting the same result: high signal but bad quality connection when activating the second polarization. The antenna that is tested Kathrein 824 0...