I have ran into a frequency that is either an unlicensed channel to an existing LTR system or a totally seperate unlicensed LTR system. Some back story is required... The local transit company - Cape County Transit Authority - is on the Dittronics UHF LTR system here in Cape Girardeau. They use two seperate TG's 0-03-001 (Vehicles) and 0-03-002 (Dispatch). CCTA also has fixed route busses that in the past did not generate much if any traffic. I assumed that I was just not picking up on them as they were on so rarely. The other day I took one of these busses and was sitting up near the driver and was listening to his radio - there was none of the traffic that I normally hear on the two above TG's, but there was a lot of chatter on the bus radio (the routes had been broken up and there was a lot of traffic about transfers and the like). So today I took my PRO-137 on a short bus trip to see if I could find the frequency that they were transmitting on and that would give me an idea of which system (if any) they were using. I did find the frequency - 459.56875 MHz - that the busses were transmitting on.
Once I got home, I plugged in 454.56875 into my PRO-107 to see if I could hear all of the bus traffic - and I did. I also heard the tell-tale LTR channel data burst on it as well. So, I put the frequency in another scanner in all 20 channels and set it for LTR and came up with the TG 0-11-008. In checking both the RR database as well as the FCC database - the above frequencies do not have any entries for an LTR system in the state of Missouri or Illinois!
Now the radio display on the bus radio said "TRANS 2" and they are currently using the Dittronics UHF LTR system for the dispatch of the taxis and the taxis as well. I would think that they would be using the same vendor - Dittronics - for everything, but that is an assumption on my part. So, my dilemma is whether or not 454.56875 is LCN11 for the existing Dittronics UHF system or if it is a part of a seperate system. I think that given the use of Dittronics for the other half of CCTA's operataion and that the bus was on TRANS 2 - it is probably LCN11 on that system. Trouble is, I don't have any way to prove it other than speculation since the frequency is unlicensed.
I would like to submit this to the RR database, but I want to have some concrete proof other than conjecture and assumptions.
Dennis
Once I got home, I plugged in 454.56875 into my PRO-107 to see if I could hear all of the bus traffic - and I did. I also heard the tell-tale LTR channel data burst on it as well. So, I put the frequency in another scanner in all 20 channels and set it for LTR and came up with the TG 0-11-008. In checking both the RR database as well as the FCC database - the above frequencies do not have any entries for an LTR system in the state of Missouri or Illinois!
Now the radio display on the bus radio said "TRANS 2" and they are currently using the Dittronics UHF LTR system for the dispatch of the taxis and the taxis as well. I would think that they would be using the same vendor - Dittronics - for everything, but that is an assumption on my part. So, my dilemma is whether or not 454.56875 is LCN11 for the existing Dittronics UHF system or if it is a part of a seperate system. I think that given the use of Dittronics for the other half of CCTA's operataion and that the bus was on TRANS 2 - it is probably LCN11 on that system. Trouble is, I don't have any way to prove it other than speculation since the frequency is unlicensed.
I would like to submit this to the RR database, but I want to have some concrete proof other than conjecture and assumptions.
Dennis