I just modded my script to add RSSL to the log instead of just SNR. That would have been better in the example script.
This is what I have now.
a=$(wget -q -O - http://127.0.0.1/DIRECT/getTunerStatus | jq .result.snr)
echo -n $(date) ", "
echo -n $a
echo -n ", "
a=$(wget -q -O - http://127.0.0.1/DIRECT/getTunerStatus | jq .result.rssi)
done >> /mnt/downloads/RSL.csv
Basic additions but what some may need. The pre-sleep 60 lets the radio get up before we request status.
The Sleep 60 can inside the script can be changed to set the update time.