Utah Comm, also known as Alpha Communication Sites, Inc., is the oldest radio shop in the area. They have long been designated by Motorola as an MSS. In the days before Nextel, they operated at least two Motorola format 800 MHz trunked systems on Little Farnsworth with a huge subscriber base and volume of traffic, as well as systems on other northern Utah sites.
Today, I am only aware of one 900 MHz Motorola system that they operate from Little Farnsworth, as well as 5 channels in the 454 MHz range, and 5 channels in 900, using the Trident Passport format (an enhanced form of LTR, especially suited for linking multiple sites).
The following information has been determined by monitoring, decoding control data, and consulting license records.
Utah Comm MAP=22222222 OPTIONS=nVDF PLAN=9 DESCR=Type II 83.72 Hz THRESHOLD=50 DISPOSITION=ebfulxnbsr c v935.1250,9,ffff,a20d dv935.6250,31,ffff,2fd9 v936.2375,62,ffff,9efa v937.1875,ae,ffff,98fe v937.6625,d4,ffff,a2f4 v937.7250,d9,ffff,8fc4 dv938.5125,118,ffff,6d2c v938.5250,119,ffff,9b62 v939.0125,140,ffff,9074 v939.0250,141,ffff,a301 dv939.7625,17c,ffff,92b3 v939.7750,17d,ffff,9bd3 ;VER=3 ;ID_hex,COLOR_dec,PRIO_dec,TITLE_str,LASTNOTED_hex,HITS_hex,USAGE_hex,ID_dec,ID_str,LASTNOTED_mm/dd/yyyy,LASTNOTED_hh:mm 0150,7,50,"?",4aba646d,2,0,336, 336,09/23/2009,14:09 0240,7,50,"?",4ac0fd4d,2d,0,576, 576,09/28/2009,14:15 0290,7,50,"?",4ac0feee,6,0,656, 656,09/28/2009,14:22 02a0,7,50,"?",4ac10299,80,0,672, 672,09/28/2009,14:38 04b0,7,50,"?",4ac12723,3b,0,1200, 1200,09/28/2009,17:14 0510,7,50,"?",4abba513,2e,0,1296, 1296,09/24/2009,12:57 0580,7,50,"?",4ac10433,66,0,1408, 1408,09/28/2009,14:45 05c0,7,50,"?",4ac12a02,1a,0,1472, 1472,09/28/2009,17:26 0600,7,50,"?",4ac1077f,23b,0,1536, 1536,09/28/2009,14:59 0610,7,50,"?",4ac126b9,72,0,1552, 1552,09/28/2009,17:12 06c0,7,50,"?",4ac10785,28c,0,1728, 1728,09/28/2009,14:59 0850,7,50,"?",4ac10641,7a,0,2128, 2128,09/28/2009,14:53 0860,7,50,"?",4ac12af5,3ab,0,2144, 2144,09/28/2009,17:30 0950,7,50,"?",4ac0f9c6,48,0,2384, 2384,09/28/2009,14:00 0d80,7,50,"?",4aba5988,f,0,3456, 3456,09/23/2009,13:23 0e50,7,50,"?",4ac12a22,1b9,0,3664, 3664,09/28/2009,17:26 0e90,7,50,"?",4ac128ef,385,0,3728, 3728,09/28/2009,17:21 0ee0,7,50,"?",4ac1079e,20,0,3808, 3808,09/28/2009,14:59 0f30,7,50,"?",4ac12926,357,0,3888, 3888,09/28/2009,17:22 0fd0,7,50,"?",4ac104f5,68,0,4048, 4048,09/28/2009,14:48 1020,7,50,"?",4ac100cf,39,0,4128, 4128,09/28/2009,14:30 1040,7,50,"?",4ac0df2a,71,0,4160, 4160,09/28/2009,12:07 11f0,7,50,"?",4ac12683,d2,0,4592, 4592,09/28/2009,17:11 1260,7,50,"?",4ac10759,bd,0,4704, 4704,09/28/2009,14:58 1280,7,50,"?",4ac10199,18,0,4736, 4736,09/28/2009,14:34 1380,7,50,"?",4ac0f8f8,20,0,4992, 4992,09/28/2009,13:57 1390,7,50,"?",4ac0dda0,a,0,5008, 5008,09/28/2009,12:00 13e0,7,50,"?",4ac12893,115,0,5088, 5088,09/28/2009,17:20 0 individual unit ID's detected on fleet 336 6 individual unit ID's detected on fleet 576 6 individual unit ID's detected on fleet 656 6 individual unit ID's detected on fleet 672 10 individual unit ID's detected on fleet 1200 4 individual unit ID's detected on fleet 1296 7 individual unit ID's detected on fleet 1408 5 individual unit ID's detected on fleet 1472 12 individual unit ID's detected on fleet 1536 10 individual unit ID's detected on fleet 1552 13 individual unit ID's detected on fleet 1728 5 individual unit ID's detected on fleet 2128 25 individual unit ID's detected on fleet 2144 5 individual unit ID's detected on fleet 2384 2 individual unit ID's detected on fleet 3456 39 individual unit ID's detected on fleet 3664 13 individual unit ID's detected on fleet 3728 3 individual unit ID's detected on fleet 3808 7 individual unit ID's detected on fleet 3888 4 individual unit ID's detected on fleet 4048 3 individual unit ID's detected on fleet 4128 3 individual unit ID's detected on fleet 4160 12 individual unit ID's detected on fleet 4592 10 individual unit ID's detected on fleet 4704 2 individual unit ID's detected on fleet 4736 3 individual unit ID's detected on fleet 4992 3 individual unit ID's detected on fleet 5008 10 individual unit ID's detected on fleet 5088
As is obvious from all the question marks, I have not yet done much work in identifying individual users. Others have, and their findings are posted on the database at radioreference.com.

454.1 454.45 454.475 454.55 454.575 935.0125 935.575 935.6125 936.2125 937.875
Any additional information you could provide on these systems would be appreciated.

This page last revised on Tuesday, 29 September 2009