Re: LTR Repeater Finder
Jim1348 said:
I have experimented some more with this and I have observed that some UHF frequencies when in the manual mode with LTR selected will alternate between more than one repeater number. I suspect that this means that the frequency is a part of an LTR related, but not pure LTR system. For example, it could mean that thye frequency is part of a system that uses Passport or something similar.
Hello,
Passport is not decodable by any current scanner. Some Passport systems output Regular LTR on some channels and behave like a regular LTR repeater except the CW ID is group 255 instead of 253.
You will see alternating groups when two groups homed to the same home repeater are using the system. If you see these two lines alternating:
0-11-120 R11
0-11-054 R05
Then you are listening to repeater number 11. 0-11-120 is talking on repeater number 11 and 0-11-054 is talking on repeater number 5. The R information means go to this repeater.
Idle bursts and CW IDs are the best ways to nail down the repeater number. Unfortunely scanners tend to not display group 255 which is used for idle (and CW ID for Passport Regular LTR). If group 0-11-120 stops transmitting in the above example but 0-11-054 still is then repeater number 11 will transmit a quiet carrier with only LTR data on it. It would transmit:
0-11-255 R11
0-11-054 R05
repeater number 5 would have voice on it and transmit
0-11-054 R05
Unfortunely scanners tend to only display the 0-11-054 information so you are not sure if you are listening to repeater number 11 or 5.
I do not own a 97 so I do not know how it behaves. The R display improves the situation but you still have to be aware of the context.
73 Eric