I need to calibrate my USRP with Flex900 daughter boards to take real
measurements in dBm. But I am confused with the gain parameter that is
- Not sure whether the RFX900 board has a PGA of its own
- Or is it just the AD9862 PGA before the ADCs
- The gain bar/parameter varies over 0-90, what does this represent?
- When you increase the gain from 0 till 30 or abouts there is no
the noise floor? why is that?
If you have any docs that I can go through to understand the gain
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