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Originally Posted by capt_clint
OK, down to basics:
1. How many frequencies are registered to this system?
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I'm not exactly sure.
These frequencies originally started out as industrial/business pool conventional (IG) and switched over to LTR (I'm seeing talkgroups with each
Yet they were never updated in the FCC database. They are still listed as IG. They are all registered to the same business with transmitters in the same location. The Wiki mentions this same phenomenon.
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Originally Posted by capt_clint
2. Are there other systems in the area registered to the same FRN, and are they within listening range of your location(15-25 miles)?
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Yes.
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Originally Posted by capt_clint
3. Are there any other LTR systems registered in your area? While it is not likely a different FRN would be licensed for the same freq in the area, it might be a "cooperating" radio service with your main FRN.
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There are several LTR systems that are registered in my area, and many more that are LTR but whose registration has not been updated.
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Originally Posted by capt_clint
Suggest you concentrate on getting LCN's for the other freq's. Once you get familiar with the users and their conversations by monitoring the system of known good LCN's, you may be in a better position to recognize "foreign" conversations.
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Which I have done. I'm still confused why I'm seeing one frequency that is assigned to two different LCNs. I hear the same people talking on both.
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Originally Posted by capt_clint
One possible confusing point in the Wiki is here:
"On the BC796D, hit the Trunk Button, and it will tell you which of the 20 positions received the transmission.... If the audio is on talk groups A-05-GGG then that frequency is likely to be channel 05."
The actual position is what's important, not the TGID. That is only there for those cases where the position found IS actually a home channel for one or more of the users. From what you have said, you are actually seeing different positions in the scanner for one freq, so I don't think that is your problem. Likely it is another system.
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But how would anyone know? These frequencies are registered to the same company, they have the same FRN, their transmitters are in the same location.