Since a few days i have locked my LNB to a OCXO and reached a stability of +/-20Hz on the NBTP over 24hrs.
To measure this "drift" i used the SDR console SW stabilisation (not activated!) to record the values.
The used RTL-SDR stick (with 0,5ppm TCXO!) causes also some Hz drift.
Now i'm curious if someone with a GPSDO and RTL-Stick can do a similar measurement and can tell me
how much drift is generated from the SDR-stick and other factors (a little bit doppler maybe?)