|Subject:||Re: [Discuss-gnuradio] Transmit signal power - How to find from the amplitude set in transmit_path?|
|Date:||Thu, 15 Jul 2010 15:11:05 -0700|
If I were in your situation, I'd calibrate myself with the hardwareOn Sat, Jul 10, 2010 at 8:32 PM, John Andrews <address@hidden> wrote:
> I want to calculate the power of the signal(in dBm) transmitted in
> benchmark_tx.py. The transmit_path sets an amplitude in the range [0,1] but
> how will I convert this into the actual power. I just want to know where
> should I be looking in order to calculate it myself.
under test by first sending out just a carrier and measuring the power
of the carrier on the frequency you wish to test. Use a meter or
scope to do this part.
Then calculate the peak-to-average power ratio of your modulation to
know how much of your signal has to be backed off to maintain
linearity through your RF PA.
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