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hytanium
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3 Yagi's instead of 1 Omni??

Sun Feb 18, 2007 10:24 pm

I was wondering if anyone has ever used a combination of 3 9db 120o yagi's instead of 1 omni for 360o coverage? Are there any Pro's/Con's? If so, are there connector blocks to tie all 3 together or would you suggest a custom cable.

This is for a 900Mhz set-up using SR9.

Thanks
 
bushy
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Mon Feb 19, 2007 12:44 am

I think its called a phasing harness you need , the three cables would be made and tested to be exactly (electrically ) the same length.
 
0ldman
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Mon Feb 19, 2007 8:07 am

you would benefit more from 3 seperate SR9's driving the antennas.

As you set it up now, it would be an easy upgrade path. Part of the benefit of directional is not getting noise from the other directions. In this situation, you will get noise from all around. With individual radios driving each yagi, you would have less noise getting to each radio.
 
hytanium
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Mon Feb 19, 2007 8:32 pm

Thank-you! That was what I was looking for. I wanted to cut down on noise...
 
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GWISA
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Location: Johannesburg, South Africa

Mon Feb 19, 2007 9:49 pm

We want to do something similar - multiple radios running more directional antennas with PPPoE authentication.

I'm experimenting with a new site using 2 radios on the same channel & SSID and bridged. PPPoE server is then on this bridge, to avoid disconnects if the client hops from one antenna to the other. So far it works fine, but there are only a couple of clients connected at this point.

Has anybody done this?
How will this impact on each AP interference-wise?
 
miahac
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Tue Feb 20, 2007 6:13 pm

Do not use the same channel on a tower 2x for those that want more channels, use 5mhz channelwidth.
 
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GWISA
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Location: Johannesburg, South Africa

Wed Feb 21, 2007 11:04 am

Problem with 5Mhz channel spacing is getting non-MT clients to connect...

I did a lab test with 2 wireless interfaces bridged on same SSID & same channel, ran 2 wireless clients on each interface, and ran Bandwidth test to both interfaces at the same time, 1Mbps up & 1Mbps down on each - all seemed fine...

I'm wondering if WDS can be implimented in any way here - I have a 10-node mesh network, all running on the same channel (obviously) and I thought there may be some way to impliment this on a single routerboard?

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