Pro-652: Whistling noise following P25 LSM transmissions

[DX160]

I am using the Pro-652 to monitor a P25 LSM system. Otherwise the monitoring is fine but occasionally, immediately after a transmission ends, the radio seems to lock on the talkgroup and makes an irritating constant whistling sound and it does not stop unless I press the "scan" button. Then it happens again and again. Some days it does not happen at all. I am wondering if there are any suggested setting changes that anyone may have. I have disabled AGC on the system but that has not solved the problem.

I welcome any suggestions. Thanks!

 

[buddrousa]

A little more info is need to help you.
#1 Where are you located?
#2 What system or systems are you trying to monitor?
#3 Is this happening on all talk groups or just a few?

 

[DX160]

Thanks

Thanks but I think the problem is solved. Disabling supertrak helped, I think.