MikroTik

Hi again...

Im having a big trouble whit my new wireless node...
The thing is that i have two atheros based pci cards on a tritonII motherboard whit a 166 mhz CPU (Pentium) and a 400 mb hdd.
Each card is connected to a Trevor marshall of eight holes ( 180º ). Besides, the antennas have a separation of +/- 1.5 mts and each one its working on different channels.
When i make a survey from about 300 mts, netstumbler shows a lot of noise ( like -87 ), even not having any tree or building between the two points.

Here are some pics..







Im using Mikrotik 2.9.6.. and please dont tell me "Why dont you upgrade to 2.9.12 ???"........
The answer is that right in this moment i dont have the money and i have to wait like two weeks to get the flash ide drive whit the license ( and it could be a little more considering that i live in Chile ). Besides, as you can see in the pics, i already have the box on the floor of my building and its very complicated to my to go upstairs each time i have a problem ( very complicated neighbors ).

I hope that you can help me.

Regards.

Sorry...

http://rockmanchile.20megsfree.com/P2110055.JPG
http://rockmanchile.20megsfree.com/P2110056.JPG
http://rockmanchile.20megsfree.com/P2110058.JPG
http://rockmanchile.20megsfree.com/P2110038.JPG
http://rockmanchile.20megsfree.com/P2110039.JPG

Bah... damn hosting....

Sorry.... here are the pics...

Sorry, but still no pictures...

Best regards,
Christian Meis

Well, here are again...

You should have at least 3 meters distance between these two antennas!!!

Frequencies are mixing and this is why you have noise...

but even working in diferent channels ??
I have one working in channel 1 and another in channel 11...

Even then!
I have same antennas, they work on horizontal polarisation and one is on channel 1 and another on channel 11, but these kind of antennas also give a hell of a signal behind its back.
First you should try is to set TX power to 21 on both antennas.
And if this doesn't help, then try separating antenas...

Try changing tx-power, I'm wainting to see what happened

Cheers...

Ok, i hope that work... tonight i will probe it.

Do you think it could be some kind of trouble whit the PCI cards ??

There are two DWL-G510 Atheros based cards...

Mikrotik works fine whit them, but maybe they dont have enough strenght to feed those kind of antennas...

Best regards...

No!!!
You should even go lower with power, but 21 is ok for me...
Everybody here looks for power, I look for quality signal...

jajaja

Well, thats exactly what i want !

It works very well !

still have a little Noise but i will keep playing the tx-power until i can get an optimal distribution of dbm.

If the results dont satisface me, y will separate the antennas a little more...

Thanks djape.

Glad I could help

Cheers mate...