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Re: [Discuss-gnuradio] rssi questions

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] rssi questions
Date: Thu, 09 Aug 2007 12:07:16 -0700
User-agent: Thunderbird (X11/20070326)

Zhuocheng Yang wrote:
> Hi guys:
> I noticed that in the adc_interface, there are registers called rssi_0, 
> rssi_1, rssi_2, and rssi_3. All of which are 32 bits. However, according to 
> the header format:
> http://gnuradio.org/trac/browser/gnuradio/trunk/usrp/doc/inband-signaling-usb
> The rssi should be 6 bits. Do I just use the lower 6 bits?

6 bits of RSSI is probably too little.  At least 8, maybe 12 would be
better.  In any case, you would need to process the 32 bits which are
computed in the rssi.v block into something smaller.  For now you can
just send the high 6 bits of the rssi value.


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