Originally Posted by soberbyker
Every now and then I'll hear a PA State Police (Philadelphia or Media?) radio check on that frequency around shift starting time.
Hello Soberbyker, yes it is the "old" state police channel B base. It is still used by Phila, Avondale, and a few other barracks within range of my antenna.
The digital transmissions have started recently and are not exactly booming in. They are short one second or so bursts timed out evenly at about the same rate that a telephone rings, with longer transmissions occurring at random times.
Now I am wondering if anyone else can hear them also.