Rtl_433: RSSI, SNR, Noise, and Freq all 0

[ALEEF02]

Hey guys,
I'm trying to use rtl_433 to intercept the packets from my weather devices. I am trying to best position my antenna, so I activated the -M level to see the SNR. But, all the SNRs are 0, along with RSSI, Noise, and Freq. Is this an issue on my end? Thanks 👍

[zuckschwerdt]

There should be no code path where all those values are 0. What version are you running? (Copy the first line of output and maybe where you downloaded a pre-built package).

[ALEEF02]

I am on commit https://github.com/merbanan/rtl_433/commit/c47bef0815e5240253236c023f21deeff5979058
rtl_433 version 20.02-37-gc47bef0 branch master at 202004232010 inputs file rtl_tcp RTL-SDR

[ALEEF02]

Further testing shows that this seems to only be happening with 915MHz, not 433.92MHz @zuckschwerdt

[merbanan]

Can you try adding -Y classic -s 1000k ?

[ALEEF02]

@merbanan That's working!

Quick question, slightly unrelated to this thread: Since I am currently using auto-gain, is there a way to display what gain the program was using with each message, in a similar fashion to -M level?

[merbanan]

The new fsk demod code is missing some calculations.

[ALEEF02]

Is there a fix on the way, or should I continue to use -Y classic -s 1000k and close this issue?

[zuckschwerdt]

We do want to have this fixed ;)

[zuckschwerdt]

It's fixed. Thanks for the detailed report!