Those simplex fireground channels are uniform for all 700 MHz users - not just Camden County but Berks County uses the same ones as well (same PL).Our Fireground channels was originally to have a 1 to 2 mile range. Once everything went online in 2013, we found it was more like 1000 feet and in some cases line of site. Unless you live in, near or are buffing Camden County it would be a waste to take up space in what ever device you use to monitor.
If the fire companies still have VHF radios on the rigs then there is a chance they could be in use. Since these channels are mostly simplex you'd have to be fairly close to the rigs to hear them in use.Oh wait, are the VHF fireground frequencies for each town still used or are they now backup?
Are you listening on a scanner or a commercial grade radio? There is a big difference between the two.Over the last 2 weeks 1 thing I have noticed about the Fire Tactical talk groups is that the audio is pretty distorted compared to the other talk groups like Fire/EMS response.