Digital VHF System
A couple of PD's in southern Illinois have started using a digital repeater system on VHF high band. The radios are ICOM and the radio vendor says there is no scanner on the market which can monitor the system. Supposedly the system is set up on 6.25 spacing instead of 12.5 spacing. I don't think the radios are using encription however when the base repeater transmits in the digital mode you can hear the data transmission. I have a Bearcat 996XT and I have been unable to program to receive this digital system. I have tried narrow FM and when I set the scanner to digital only I get an option to search or enter HEX. I get no results in the search mode and I can find no information indicating how to program or where to get HEX data. I've seen Hex reference in the Starcom 21 material next to the talk group number. I was curious if HEX is similar to a baud rate or a mode of digitizing. I've programmed scanners for years and programmed my BC 996XT to monitor Motorola type II, EDACS, LTR, and P25 trunked and conventional systems but this system has me stumped. This system repeater will repeat an analog transmission in analog and a digital transmission in digital so the system will still work with legacy radios. Any info would be appreciated.