Tri County Communications in Laredo, TX is not an LTR

[muddy mudskipper]

it's a Type 2 UHF Motorola Trunk System.

same frequencies, but showing a sys id of 8a17h

those frequencies for Tri County Communications in Webb County, TX are:

461.4250
463.5000
463.5750
464.1250
464.4000
464.4500
464.9000

need to work out some calculation for the BASE and OFFSET (in other words, my lazy butt hasn't put pencil to paper yet).

should be a matter of doing the following:

**********
OFFSET (in kHz)= 1000* ((F1-F2)/(DEC1-DEC2))

if you then convert OFFSET to MHz (divide by 1000 of course)

BASE = F1-((DEC1-380)*OFFSET (in MHz))

here's some Hex values for known trunker UHF freqs that might help complete a table. honestly don't know if this would work for the 464.4000 cc in question down in Webb County...

FREQUENCY | HEX | DECIMAL
________________________
406.0000 17C 380
406.0250 17D 381
406.0500 17E 382
406.0750 17F 383

 

[loumaag]

All that math doesn't do any good unless someone can provide one frequency with the associated HEX (or even decimal for that matter) channel number from the system in question.