• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:

What trunking control channel should I use?

Jul 10, 2017
Thanks for the reply!

Looks like the closest tower to me is in Shalersville which is about 8 miles from me.

In SDR Sharp I'm looking at 773.58125c but I'm not seeing a good signal but I'm just using some old TV antenna. Should I be able to see any activity on this channel. Just want to make sure I'm headed in the right direction before I invest in a better antenna. Thanks!


Premium Subscriber
Mar 3, 2007
Talbot Co, MD
With P25, if you're looking for traffic from a specific agency you don't necessarily just want to monitor the 'closest' control channel as that may not be the site they are using. (P25 traffic does not repeat between sites unless (i) a subscriber radio associates with that site and tgid, or (ii) radio admin has strapped the tgid so that it is always present.