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ARC780 File for finding UHF LTR channels

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cg

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Here is the ARC780 file I use for searching 451-453 & 460.9-464.9875 for LTR systems. I use this with LTRDump and LTRTrunk programs.

I load this file and then scan with TRUNK off. When I get activity (either LTR clicks or voice) I press MANUAL and TRUNK. I then start the appropriate program to figure out the traffic.

I have listed each frequency with the hex as well as dec. designation.

The EMS Med channels (462.95-463.175) are not in there. I needed additional room for some public safety at the end.

chris gordon
granby ct
 

mr_hankey

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out standing!

one thing the 780 can't do is send the TRUNK signal in search mode.

this helps alot.

as an added tip, you can designate the frequency as FM to pull in some distant frequencies...

i'm gonna give it a shot right now!
 

pro92b

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Here's a file for the PRO-92 and PRO-2067. It contains all frequencies from 451-453 and 460.65-464.9875 except Med channels. There are also seven search ranges defined, mostly 1 MHz wide each.

This is really for regular LTR only since the banks and channels are set to LTR.
 

BANDIT

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While you guys are here I need some info. Gwinnett School System and three Licences WPVQ760, WPVQ715 and WPSL764. These seem to all be Multinet LTR, I cant find a status channel only a burst every 10 sec on the frequencys for repeter output. Loaded all the 16 frequencys in a bank together in ascending order, set them to Trunk and do an ID Scan. I have logged a lot of groups but what bothers me is I am getting ID's such as this, 0-02-094, 0-10-073, 0-27-115 and 0-30-192 which is why I think its multinet as LTR systems have only 20 slots. Two of the repeters have 5 frequencys and the third has 6 and another call of WPTG834 is listed in database as conventional and has the same outputs as WPSL764. I know LTR can support both trunk and conventional. Any suggestions for mapping this system. :(
 

pro92b

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If there is no status channel it isn't MultiNet. Regular LTR is much more common than MultiNet. The checksum in regular LTR is far from foolproof and bogus id's sometimes get through the check. The file at http://home.hvc.rr.com/bpetrow/ltr.htm may help you determine the repeater numbers. What scanner are you using?
 

BANDIT

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Its a BC785D, and I was thinking that regular LTR had a status channel and read that PassPort has burst every two seconds. If I hold on a channel I will get burst every 10 seconds, and the home repeter in the IDs that I am receiving is why I was thinking it might be multinet. Just learning about LTR and this is the only one around that I know of at the time. Earlier I said I was doing an ID scan and I ment to say ID search. When there are multiple systems do they have to be in different banks? All of these repeaters are located on the same tower.
 

pro92b

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A burst every ten seconds is characteristic of regular LTR. There is no status channel with regular LTR. Each LTR system should be in its own bank as a rule. The only exception is for two systems that do not share any repeater numbers (independent LCN). Even then the scan lists can get tangled up so it is best to have one system per bank.
 

BANDIT

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Thanks, I will give that a try and put the three in seperate banks and try to map each one. I cant use Ltrunk yet because I only have the pass-through slicer from dataslicers.com and its not filtered. May have to wait until school starts up again as Friday was the last day of school and I am not getting as much activity as last week, tho there is still some and I think others than just the school are using the system.
 
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