On 01/19/2016 01:38 PM, Adriana Arteaga wrote:
Hello,
How can I get input voltage of RX antenna for bladerf using gnuradio?
Thanks,
You can't, at least, not directly. The sample values you get in Gnu
Radio are *proportional* to the voltage as seen at the antenna terminals,
but the precise proportionality factor has to be determined through
the use of a calibration source.
Between your antenna, and the ADC (and, by inference, Gnu Radio),
there's typically, with all SDR radios a pile of "stuff" that provides gains
and losses to the signal. Those gains and losses are necessarily
frequency/gain/sample-rate/per-device dependent. So, the only way
is to calibrate *your particular device* under some known settings.
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