Re: [Discuss-gnuradio] AGC on the RFX900 board

2011-07-03 Thread Sundaram Vanka
Thanks, Marcus, for your prompt and detailed response. If I understand you correctly: 1. The best case noise figure of the RFX900 daughterboard is about 3-3.8 dB. This occurs when the mixer amplifiers are set to their highest gain setting. 2. These gain settings can be fixed via software (via UHD)

Re: [Discuss-gnuradio] AGC on the RFX900 board

2011-07-03 Thread Marcus D. Leech
On 07/03/2011 08:05 PM, Sundaram Vanka wrote: > Hi, > > I have a few questions about the (analog) AGC on the AD8347 mixer chip > on the Flex900 daughterboard. > > 1. Given a signal received with some known power, is it possible to > read the programmed AGC gains (and thereby find the mixer's noise