What is in the 490-510 MHz range around ATL?

[McDonoughGA]

While in Cherokee County this week I have been getting multiple 'close calls' in this particular frequency range including a few repeaters. Unfortunately, there is never anything to hear. I get these same close calls in Henry County as well but less frequently and still with nothing to listen to.

Any ideas whats doing this?

Thanks

 

[b7spectra]

You SHOULDN'T be getting anything in there except image's. Since there is a ch 17, those bands are not supposed to be open to service.

 

[CapStar362]

clayton county uses alot of simplex analog radio equipment and mostly its in the 400-500 range. spectra's webpage has everything you need to know about Clayton/Henry area. just click on Troop C