Cant get UAT 978 to work on new pi

[abcd567]

Have you tried this guide?
If not, reading it in full will help.
Below is quote of that part of the guide which is specific to your issue.

@abcd567

9 - USING ONLY ONE FREQUENCY (978 Mhz OR 1090 Mhz)

9.1 - If you want to run 978 Mhz only
In this case, you will need only one dongle, but you will have to disable dump1090-fa by following command

sudo piaware-config uat-receiver-type sdr
sudo piaware-config receiver-type none
sudo systemctl restart piaware