Please find below my notes for the ATT Park LTR system. I used the algorithm described in the LTR Wiki to determine the LCN numbers for frequencies that came active. Basically, you dedicate an entire bank to a single LTR frequency. When a TGID comes active, knock the radio out of TRUNK mode and see which channel you were sitting on. As I determined the LCN, I would lockout the old bank and create a new bank with the next frequency I was trying to determine LCN. Now I have a 780 config with all of the 'missing' LTR frequencies, so if any of them ocme up active for a short while, I should be able to snag the LCN. Note that this system doesn't use the idle bursts, so I don't think a Pro-97 would help much.
For completeness and fairness, I've included the work done by Greg Stramback showing his work in the area. We agree on the LCN numbers and on the common TGIDs.
The notes below include the licensing classification. I'm hoping that some of the licensing experts here can read the codes and let me know whether to expect if the other unidentified/unheard channels could reasonably be expected to be part of the LTR system.
My monitoring was during a two hour period last saturday during the dogers game. As an fyi, the system is monitorable several blocks away from the park.
One other comment I am including the 'talk around' frequencies in Greg's post. I do not wish to 'submit' this information, but I wanted to provide it for discussion. Has anyone ever seen LTR 'talk arounds' use the same frequencies as the LTR system itself?? Seems like a situation ripe for interference. Is this some sort of fail soft configuration?
Original documentation:
Greg Stramback
http://groups.yahoo.com/group/bayscan/message/27334 (error in 19)
http://groups.yahoo.com/group/bayscan/message/27689 (fixed & talkarounds)
License WQAF710
http://www.radioreference.com/modules.php?name=RR&action=fcc&cs=WQAF710
1-03-113
1-07-103 Janitorial/Maintenance
1-11-101
1-15-102 Ushers
1-19-100 Security
Additional notes...from Greg Stramback
Talk arounds:
T/A 1 457.0625 DPL: 025
T/A 2 456.5125 DPL: 026
T/A 3 456.3125 DPL: 031
T/A 4 452.0625 DPL: 025
T/A 5 451.5125 DPL: 026
T/A 6 451.3125 DPL: 031
For completeness and fairness, I've included the work done by Greg Stramback showing his work in the area. We agree on the LCN numbers and on the common TGIDs.
The notes below include the licensing classification. I'm hoping that some of the licensing experts here can read the codes and let me know whether to expect if the other unidentified/unheard channels could reasonably be expected to be part of the LTR system.
My monitoring was during a two hour period last saturday during the dogers game. As an fyi, the system is monitorable several blocks away from the park.
One other comment I am including the 'talk around' frequencies in Greg's post. I do not wish to 'submit' this information, but I wanted to provide it for discussion. Has anyone ever seen LTR 'talk arounds' use the same frequencies as the LTR system itself?? Seems like a situation ripe for interference. Is this some sort of fail soft configuration?
Original documentation:
Greg Stramback
http://groups.yahoo.com/group/bayscan/message/27334 (error in 19)
http://groups.yahoo.com/group/bayscan/message/27689 (fixed & talkarounds)
License WQAF710
http://www.radioreference.com/modules.php?name=RR&action=fcc&cs=WQAF710
Code:
Frequency LCN License / Input License
451.3125 3 FB2/MO100
456.3125 FX1/MO100
451.5125 7 FB2/MO100
456.5125 FX1/MO100
452.0375 MO100
457.0375 FX1/MO100
452.0625 11 FB2
457.0625 MO100
452.1125 FB2
457.1125 FX1/MO100
452.1875 15 FB2
452.2875 19 FB2
452.8000 MO100
457.8000 FX1/MO100
461.5250 MO100
466.525 FX1
1-07-103 Janitorial/Maintenance
1-11-101
1-15-102 Ushers
1-19-100 Security
Additional notes...from Greg Stramback
Talk arounds:
T/A 1 457.0625 DPL: 025
T/A 2 456.5125 DPL: 026
T/A 3 456.3125 DPL: 031
T/A 4 452.0625 DPL: 025
T/A 5 451.5125 DPL: 026
T/A 6 451.3125 DPL: 031
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