How can I read current AGC level in dB on LC76?
The goal is have an idea of signal level even if no satellites show up.
(high AGC → low signal)
This was very easy in ublox via MON-HW ubx message.
I can’t find an answer to your question for the LC76F or the LC76G; but while you wait for an answer from Quectel, I’d recommend you reply back with a picture of the module and the current firmware version as the answer might depend on which chip you have in your module.
or Signal to Noise ratio, or C/No level, before seeing any satellites.
It’s LC76GPAMD
but something universal message would be nice across AG33* chipsets.