newport news va

What is with the Newport News waterworks channels? I was making a list of all the analog frequencies in VA because I live in southern MD Like what is an S type of ch 451.100 KBI293 S 173.8 PL 3 Talkaround FM Public Works 451.250 KBI293 S 173.8 PL 4 Talkaround...

Has Newport News changed any frequency on their trunked system in the past couple of months. I will get hit and miss radio traffic from PD and Fire if any at all.

Does anyone now if NN is rebanding? Been having issues with not hearing full conversations and dispatches. Radio Shack Pro-528 Trunking Thank you