On 11/10/2020 07:06 PM, Lukas Haase via USRP-users wrote:
The reason why I am asking about this is because I would like to cross-check my
measurements.
My original question was about RX gain but it actually also relates to TX gain.
With an X310 and UBX-160, TX Gain=0 and sending out a full-scale sinusoid at
915MHz, I measure approx. -2.5dBm.
This is not consistent at all with the file above (assuming I interpret how
"gain" is defined correctly, hence my original question).
Would anyone with an UBX-160 be so kind to confirm/disconfirm which power level
I would expect to see?
(Preferably at 915MHz with TXgain=0 and full-scale sinusoid but I'm happy with
any other configuration that I can x-check).
Thank you!
Lukas
So, according to the charts, at 900Mhz, you'd expect about -9dBm with a
0dB gain setting, with a full-scale baseband signal.
So, there's a discrepancy of about 6.5dB. How did you measure the power
level? I could easily expect a couple of
dB discrepancy just due to component batch-to-batch variability.
So, how was the power measured?
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