The carrier test measures the amount of radio activity on each frequency available to the bridge. Use the carrier test to determine the best frequency for the bridge to use. You need to use the lowest busy and lowest noisy channel..So pick one like that.
When you conduct a carrier test, make sure all wireless networking devices within range of the bridge are operating to make the test results reflect a realistic radio environment.
If you see noise that high and busy carriers across all channels, you have a difficult environment. -83 means that without external antennas, you have little hope of getting clients to connect reliably (A noiseless environment would be -100dBm, the 17dB difference is logarythmic - 500% more noise than -83).
Your useable signal will be total signal minus noise, so armed with that you can figure your required antenna gain to reach a stated distance.
I have the same question, I installed a pair of 350 bridges, and the distance of 13 km between ech other, and I don´t know what is the right (dbm) in the antenna alignment test, for that king of link.(Data rates are 11Mbps,5.5,2, and 1)
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