On 09/10/2018 08:17 PM, Ron Economos via USRP-users wrote:
I had previously noted that the B210 TX power had increased by about 5
dB going from UHD 3.11.1.0 to UHD 3.12.0. Today, I was doing some two
tone IMD testing and noticed that the IMD performance has degraded
*severely* from UHD 3.11.1.0 to UHD 3.12.0.
Here are the spectrum analyzer plots at roughly the same power level.
The 3rd order two tone IMD level changes from almost -50 dB in
3.11.0.1 to a hideous -20 dB with 3.12.0. Something is terribly wrong.
UHD 3.11.0.1
3.11.0.1 IMD
UHD 3.12.0
UHD 3.12.0 IMD
Ron
I know that there had been some "futzing" with scaling in the B2xx at
around that time. What about 3.13 or 3.14?
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