10/30/20 01:45:47 UTC
321.000 MHz
UPSET41 landing in 20min with 23K fuel
10/29/20 19:35:46 UTC
135.750 MHz
JEDI 33, 37 and 54 (T-6As ) heading out of MacDill.
10/29/20 17:24:11 UTC
119.500 MHz
Air Force One landing at Tampa Intl.
10/29/20 15:58:16 UTC
235.100 MHz
a/a refueling and training
10/29/20 15:57:17 UTC
317.600 MHz

10/28/20 21:59:39 UTC
149.6500 MHz
"...2-7 is turning inbound, 1 bundle, 5 jumpers..." 10/28/2020, 1352h. -AJ
10/28/20 21:57:43 UTC
38.700 MHz
A2A "ZEUS12, 22. Show you're about 8.5 miles away from us, are you behind us?.....Sierra-Delta-Zulu (SDZ VOR)..." Signal kinda in and out, but strangely very clear and neither pilot had any noticable background noise (helicopter sounds) as if using new type of mic. Prev logged this in use for ZEUS(H64s) training in 2018 near KVUJ. 10/27/2020, 1415h. -AJ
10/27/20 17:49:48 UTC
38.700 MHz
"...H1's, currently Chesterfield, Charlie-Tango-Foxtrot (CHESTERFIELD VOR/DME, CTF), en route to ????bruice???, one hour out..." Oddly excellent, near perfect reception, though CTF is nearly 60 miles distant. The destination part sounded like "tango-bruice", so reception obviously less than perfect. 10/27/2020, 1228h. -AJ
10/27/20 17:42:55 UTC
336.100 MHz
"...glad you're on frequency and let us know when you're en route so you can give us an idea of the time..." 10/26/2020, 1233h. -AJ
10/27/20 17:41:11 UTC
32.450 MHz
"...uh Alpha 5-3-1 (A-531) here in Montgomery county, Daniel wanted me to let you know" 10/26/2020, 1925h. -AJ
10/27/20 15:31:18 UTC
293.000 MHz
"...off Mid-Carolina (KRUQ), en route to Mackall (KHFF)" 10/26/2020, 1918h. -AJ
10/26/20 17:28:30 UTC
141.550 MHz
"...Andrews...this is PAT(##)..." Very weak rx, single snippit. 10/20/2020, 2007h. -AJ

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COTHEN - Celluar Over-The-Horizon Enforcement Network

Back in 1984, the design for an ultra-sensitive U.S. Customs radio network was conceived. Code-named COTHEN, Customs Over The Horizon Enforcement Network, (Now federal publications call it the "Cellular Over- The-Horizon Enforcement Network") it combines a radio, computer, and a tactical voice privacy unit into a state-of-the-art communications system that meets the demanding requirements of Customs' tactical interdiction aircraft and boats in their fight against smuggling activities.

COTHEN's first fixed station transmitter near Memphis, Tenn., became operational in 1985. The Blue Lightning Operations Center was the first command office and its marine vessels were the first tactical platforms to have COTHEN radios. This initial deployment proved so successful that COTHEN grew to include all U.S. Customs aircraft.

High powered fixed station transmitters located across the United States are connected to Customs' Air, Marine, and Special Agent In Charge (SAIC) locations via dedicated telephone lines. Tactical interdiction platforms that are equipped with a COTHEN radio can place a call to any other platform or office in the network. Thanks to innovative technological advancements, a COTHEN radio is able to establish a link with another COTHEN radio thousands of miles away with no more difficulty than placing a phone call.

COTHEN has been instrumental in helping law enforcement agencies successfully complete a number of missions. For instance, early last year off the coast of Puerto Rico, COTHEN played a primary role in impressive seizures of 1,169 kilos of cocaine, one boat, three smugglers, and 41 illegal aliens by making sure all the entities involved in the action remained in contact with each other.

COTHEN now provides communications support for more than 235 aircraft, marine interdiction vessels, command offices, and numerous allied agencies including the U.S. Coast Guard, Drug Enforcement Administration, Border Patrol, Army, Navy, and Joint Interagency Task Forces. COTHEN's Technical Service Center (TSC) provides real-time on-the-air support services and guarantees communications between users. The Telecommunications Specialists who operate the TSC have many innovative diagnostic tools used to ensure communications, including a telephone patch (TRICS), a platform tracking and location system (TRACS), and over-the-air-rekeying capabilities (DARK).

The COTHEN and TSC team, responsible for all program management and on-the-air technical support, is headquartered at the Communication Management Division's National Law Enforcement Communications Center in Orlando, Fla.

Frequencies in KHz; mode USB/ALE