Warboard Link

[kevin]

We took a direct lightening strike last friday afternoon and went with the war boards instead of rerunning 3 runs of coax and a pc. We put the ap on an antenna at the top (160') using a wrap, and a warboard right beside it with a backhaul link (29 db grid 5.8). We proceeded to put the other warboard up at 200' 8 miles away. We used nothing but the basic features, and set the power to 10, we could'nt see the opposite towers because of haze (we tried to do it off of the 2.4 backhauls). They both went up at the exact same time that is the reason for the poor tuning.

results are 72 db signal, 4mb's solid as a rock

[tony]

Thank you for your feedback, I am pleased to see you got your links up and running.

[klyne]

we just replaced a motorola link with the new WAR boards, the link is 14 miles and with a single CM9 on both sides. 802.11a w/SuperA (not turbo) and throughput is 28Mbit/s solid with a peak @ 36Mbit/s. Great!

question, how do i translate the rssi value into an SNR? i know that the rssi is the strength of the recieved signal, but @ -73 i sync @ 54Mbit and at -60 only at 6Mbit, to me that does not make sense since -60 should add up to a SNR of roughly 35 and -73 should be SNR 22. Am i all wrong about this?

Regards,

Martin Madsen
Bel Air Internet

[lonnie]

The -60 dB could be seeing other noise and therefore will be reducing speed. At that signal level you should be able to set the rate to whatever speed you want. If you watch the display you will see it jump up in speed once you actually begin to push data.

It does not always stay at the fastest when set to auto, but will move around in response to noise and also the demand. If you only need a few mbps of data it will stay down at 6 mbps link.

[tony]

Klyne, to get the value you are referring too, add 95 to the dbm. These numbers are not SNR, but a raw representation of the RSSI. .

Thanks!