Atheros DFS radar detection

[Wright, Brett]

Hi Adrian,

> -----Original Message-----
> From: adrian.chadd at gmail.com [mailto:adrian.chadd at gmail.com] On Behalf
> Of Adrian Chadd
> Sent: Saturday, 25 August 2012 3:52 AM
> 
> I haven't yet sat down and done actual radar pulse train detection
> with the AR5212 and I know it's just going to plain suck at doing
> chirps in a busy environment (as they just look like long pulses;
> there's no FFT data to assist the software in decoding what's going
> on) but it should be enough to get you started.
> 
That might be half my problem, the radar patterns I have to setup to get
compliant detection increase the chance of false radar train detection
(in combination with the false pulse detection). Reducing this false
pulse detection has been the biggest help. If I tinker too much with the
radar patterns I can't get compliant detection.

> Have you tried these NICs on different hardware? I wonder if you're
> seeing some kind of spur or board noise that's contributing to both
> the false detections and the high noise floor calibration value. I
> don't have an SR-5 here to test against I'm afraid..
> 

I haven't tried other hardware because I'm working on an existing
hardware platform where I have to use SR5 (mainly for the high Tx power
etc). But makes sense that the SR5 is making this whole process more
difficult...

Thanks for all the help.
Brett