New COTHEN frequencies

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brandon

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I am looking at the udxf group and it shows some new COTHEN freqs.

[FONT=&quot]6-09 - Regular COTHEN traffic now appears on 4614.5, 5250, 5909.5, 12222, 13312, 14582, 20662 kHz.[/FONT]

Has anyone heard voice activity on them?
 

ka3jjz

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They probably are all USB, but don't be surprised if they go LSB at some point. Watching the UDXF and COTHEN Yahoo groups should give you some patterns that you can use to your benefit.

These new COTHEN freqs should be added to our wiki - here's the article on the subject...

COTHEN - The RadioReference Wiki

If you hear a whole bunch of warbling tones on these freqs, that is a mode known as ALE or Automatic Link Establishment. (It's also known by a Mil-Std name...). It can be decoded with MultiPSK or PC-ALE - both freeware, and linked on the ALE article. There's a fair number of folks that collect and analyze the callsigns (and sometimes ship or plane numbers) that appear in the ALE messages. It takes time to learn to read them....73 Mike
 

ka3jjz

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A cursory look at the UDXF list only showed some activity from the British contingent in Iraq when they were still there on 5250.

I thought 13312 sounded awfully familiar, and sure enough, this freq is shared with the HFDL network - specifically slot 6 for Molokai Hawaii and slot 2 for Agana Guam. So don't be too surprised if that's what you hear - and both would be good catches in any case.

73 Mike
 

ridgescan

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I personally have been keying them into the R71 and giving each freq 5 minutes-nothing so far. I would enter them all into as many channels and scan them but the noise floor here fluctuates too much to make that practical.
 

Bucko

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I just heard four zero /Comslant on 12222.0 at 1243 ET. I run these in my R75 memory scan and this the first time I have heard activity on this freq.since I added it the other Cothen's.
 

kennyblues

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Kind of interesting that A couple of those "new" channels were a part of the Customs HF radio systems in the time before the implementation of the COTHEN system in the late 80's;

Sierra Echo 11073.5
Sierra Hotel 17171.0
Sierra India 18171.0
Sierra Juliet 19131.0

Tango Alpha 10242.0
Tango Bravo 13907.0
Tango Charlie 20890.0
Tango Delta 23214.0
Tango Echo 25350.0

Victor Alpha 27870.0
Victor Bravo 20631.0
Victor Charlie 18594.0
Victor Delta 15964.0
Victor Delta 7475.0
Victor Echo 10242.0
Victor Fox 11494.0
Victor Golf 13907.0
Victor Kilo 3369.0

Whiskey Charlie 5912.0
Whiskey Delta 12138.0
Whiskey Echo 13659.0
Whiskey Fox 15964.0

Xray Alpha 2808.5
Xray Bravo 4991.0
Xray Charlie 5058.5
Xray Delta 7778.0
Xray Echo 9238.5
Xray Fox 11191.0
Xray Golf 15954.0
Xray Hotel 17601.0
Xray India 19131.0

Yankee Alpha 3428.0
Yankee Bravo 5571.0
Yankee Charlie 8912.0
Yankee Delta 11288.0
Yankee Echo 13312.0
Yankee Fox 17952.0

Zulu Alpha 4500.0
Zulu Bravo 7527.0
Zulu Charlie 9802.0
Zulu Delta 12222.0
Zulu Echo 15867.0
 

brandon

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Let the radio run today recording a couple freqs

12222 KHz
ALE hits: A48, D70
No voice heard

13312 KHz
ALE hits: MR1
No voice heard

14582 KHz
ALE hits: A48

I will monitor the lower freqs this evening and overnight for activity.
 
Last edited:

Gatorman

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COTHEN Yahoo Group

You mention a COTHEN Yahoo Group. A search of Yahoo Groups reveals nothing using that title or similar. Can you provide a link please?

Thanks
 

Gatorman

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Thank you. I see only 18 posts for 2009. Perhaps this might be a good place to hang out. I registered for the other forum, UDXF.

Anyone out there using a JRC NRD-515? I just pulled mine out after giving it a rest of several years. Seems to work as well as it always did.
 

brandon

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This morning on 12222 kHz logged voice traffic from CAMSLANT wkg November 03, position was in the Gulf of Mexico. Could not hear November 03 from my location. ALE id's logged so far today on 12222: N03, I43, J42, LNT, N04, J40, A48, K72, D70, I3L
 

blantonl

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I can confirm that each of the new frequencies are in use (I logged a ton of units at least on the upper new frequencies today). I'll update the Wiki page with these latest.
 

blantonl

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I ran PC ALE on the COTHEN network overnight and here were the results. very little call activity but you can see that a majority of assets using COTHEN are at least using most of the upper "new" frequencies

Code:
[11:23:07][FRQ 07527000][SND][   ][TWS][719   ][AL0] BER 28 SN 06
[11:15:07][FRQ 11494000][SND][   ][TWS][ROS   ][AL0] BER  0 SN 00
[11:15:07][FRQ 10242000][SND][   ][TWS][ROS   ][AL0] BER 21 SN 05
[11:15:07][FRQ 08912000][SND][   ][TWS][ROS   ][AL0] BER 25 SN 04
[11:12:33][FRQ 18594000][SND][   ][TWS][ROS   ][AL0] BER 18 SN 03
[11:11:15][FRQ 15867000][SND][   ][TWS][ROS   ][AL0] BER 22 SN 03
[10:14:44][FRQ 08912000][SND][   ][TWS][ROS   ][AL0] BER 30 SN 05
[10:12:13][FRQ 05909500][SND][   ][TWS][J16   ][AL0] BER  0 SN 00
[10:12:13][FRQ 05732000][SND][   ][TWS][J16   ][AL0] BER 20 SN 04
[09:14:29][FRQ 10242000][SND][   ][TWS][ROS   ][AL0] BER  0 SN 00
[09:14:29][FRQ 08912000][SND][   ][TWS][ROS   ][AL0] BER 19 SN 05
[09:13:49][FRQ 05732000][SND][   ][TWS][ROS   ][AL0] BER 23 SN 03
[08:42:37][FRQ 07527000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[08:42:37][FRQ 05909500][SND][   ][TWS][D31   ][AL0] BER 10 SN 03
[08:37:51][FRQ 11494000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[08:37:51][FRQ 10242000][SND][   ][TWS][D31   ][AL0] BER 19 SN 05
[08:37:50][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER 29 SN 04
[08:36:20][FRQ 05732000][SND][   ][TWS][D31   ][AL0] BER 27 SN 03
[08:14:02][FRQ 08912000][SND][   ][TWS][ROS   ][AL0] BER 29 SN 05
[08:10:04][FRQ 15867000][SND][   ][TWS][ROS   ][AL0] BER 25 SN 03
[07:51:59][FRQ 07527000][SND][   ][TWS][D31   ][AL0] BER 18 SN 03
[07:51:03][FRQ 05732000][SND][   ][TWS][D31   ][AL0] BER 25 SN 03
[07:13:04][FRQ 05732000][SND][   ][TWS][ROS   ][AL0] BER 13 SN 03
[07:08:59][FRQ 14582000][SND][   ][TWS][D31   ][AL0] BER 28 SN 03
[07:07:59][FRQ 13907000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[07:07:59][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER 27 SN 04
[07:07:59][FRQ 12222000][SND][   ][TWS][D31   ][AL0] BER 16 SN 03
[07:07:00][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER 24 SN 04
[06:38:07][FRQ 05732000][SND][   ][TWS][D01   ][AL0] BER 21 SN 03
[06:27:19][FRQ 15867000][SND][   ][TWS][D01   ][AL0] BER 28 SN 03
[06:27:04][FRQ 15867000][SND][   ][TWS][D01   ][AL0] BER  0 SN 00
[06:27:04][FRQ 14582000][SND][   ][TWS][D01   ][AL0] BER 24 SN 07
[06:27:04][FRQ 13907000][SND][   ][TWS][D01   ][AL0] BER 25 SN 05
[06:26:36][FRQ 12222000][SND][   ][TWS][D01   ][AL0] BER  0 SN 00
[06:26:36][FRQ 11494000][SND][   ][TWS][D01   ][AL0] BER 30 SN 06
[06:26:36][FRQ 10242000][SND][   ][TWS][D01   ][AL0] BER 29 SN 05
[06:25:24][FRQ 20662000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[06:25:24][FRQ 18594000][SND][   ][TWS][D31   ][AL0] BER 30 SN 09
[06:24:06][FRQ 20890000][SND][   ][TWS][D31   ][AL0] BER 30 SN 03
[06:23:50][FRQ 15867000][SND][   ][TWS][D31   ][AL0] BER 30 SN 08
[06:23:08][FRQ 13907000][SND][   ][TWS][D31   ][AL0] BER 30 SN 06
[06:22:42][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER 30 SN 07
[06:22:00][FRQ 11494000][SND][   ][TWS][D31   ][AL0] BER 24 SN 03
[06:21:45][FRQ 11494000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[06:21:45][FRQ 10242000][SND][   ][TWS][D31   ][AL0] BER 22 SN 04
[06:21:02][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[06:21:02][FRQ 07527000][SND][   ][TWS][D31   ][AL0] BER 24 SN 04
[06:20:22][FRQ 05732000][SND][   ][TWS][D31   ][AL0] BER 25 SN 04
[06:13:24][FRQ 10242000][SND][   ][TWS][ROS   ][AL0] BER  0 SN 00
[06:13:24][FRQ 08912000][SND][   ][TWS][ROS   ][AL0] BER 20 SN 03
[06:12:41][FRQ 05732000][SND][   ][TWS][ROS   ][AL0] BER 19 SN 03
[05:38:34][FRQ 20890000][SND][   ][TWS][D31   ][AL0] BER 21 SN 03
[05:37:36][FRQ 13907000][SND][   ][TWS][D31   ][AL0] BER 30 SN 05
[05:37:21][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER 30 SN 08
[05:35:58][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER 30 SN 06
[05:34:58][FRQ 05732000][SND][   ][TWS][D31   ][AL0] BER 26 SN 03
[05:13:01][FRQ 08912000][SND][   ][TWS][ROS   ][AL0] BER 25 SN 04
[04:55:24][FRQ 05909500][SND][   ][TWS][D31   ][AL0] BER 28 SN 04
[04:54:38][FRQ 18594000][SND][   ][TWS][D31   ][AL0] BER 28 SN 04
[04:52:58][FRQ 15867000][SND][   ][TWS][D31   ][AL0] BER 30 SN 06
[04:52:13][FRQ 13907000][SND][   ][TWS][D31   ][AL0] BER 28 SN 03
[04:51:59][FRQ 14582000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[04:51:59][FRQ 13907000][SND][   ][TWS][D31   ][AL0] BER 30 SN 10
[04:51:58][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER 30 SN 08
[04:51:17][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[04:51:17][FRQ 12222000][SND][   ][TWS][D31   ][AL0] BER 30 SN 06
[04:51:16][FRQ 11494000][SND][   ][TWS][D31   ][AL0] BER 30 SN 05
[04:50:33][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER 30 SN 06
[04:30:30][FRQ 13312000][SND][   ][TWS][D01   ][AL0] BER  0 SN 00
[04:30:30][FRQ 12222000][SND][   ][TWS][D01   ][AL0] BER 29 SN 05
[04:30:30][FRQ 11494000][SND][   ][TWS][D01   ][AL0] BER 27 SN 03
[04:07:09][FRQ 18594000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[04:07:09][FRQ 15867000][SND][   ][TWS][D31   ][AL0] BER 29 SN 05
[04:07:09][FRQ 14582000][SND][   ][TWS][D31   ][AL0] BER 28 SN 04
[04:06:10][FRQ 13907000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[04:06:10][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER 24 SN 04
[04:06:09][FRQ 12222000][SND][   ][TWS][D31   ][AL0] BER 30 SN 04
[04:05:28][FRQ 10242000][SND][   ][TWS][D31   ][AL0] BER 30 SN 03
[04:04:59][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER 30 SN 09
[04:04:44][FRQ 07527000][SND][   ][TWS][D31   ][AL0] BER 28 SN 05
[04:04:01][FRQ 07527000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[04:04:01][FRQ 05909500][SND][   ][TWS][D31   ][AL0] BER 25 SN 04
[04:04:01][FRQ 05732000][SND][   ][TWS][D31   ][AL0] BER 17 SN 03
[03:24:21][FRQ 05909500][SND][   ][TWS][D31   ][AL0] BER 30 SN 03
[03:20:38][FRQ 12222000][SND][   ][TWS][D31   ][AL0] BER 29 SN 04
[03:20:23][FRQ 11494000][SND][   ][TWS][D31   ][AL0] BER 18 SN 03
[03:19:41][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER 30 SN 07
[03:19:25][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[03:19:25][FRQ 07527000][SND][   ][TWS][D31   ][AL0] BER 28 SN 04
[03:12:14][FRQ 08912000][SND][   ][TWS][ROS   ][AL0] BER 25 SN 03
[03:11:45][FRQ 05909500][SND][   ][TWS][ROS   ][AL0] BER  0 SN 00
[03:11:45][FRQ 05732000][SND][   ][TWS][ROS   ][AL0] BER 26 SN 03
[03:06:03][FRQ 08912000][SND][   ][TWS][TS1   ][AL0] BER 17 SN 04
[02:36:40][FRQ 18594000][SND][   ][TWS][D31   ][AL0] BER 25 SN 03
[02:34:59][FRQ 13907000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[02:34:59][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER 27 SN 05
[02:34:59][FRQ 12222000][SND][   ][TWS][D31   ][AL0] BER 30 SN 04
[02:34:27][FRQ 11494000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[02:34:27][FRQ 10242000][SND][   ][TWS][D31   ][AL0] BER 30 SN 05
[02:34:00][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER 24 SN 04
[02:12:19][FRQ 13312000][SND][   ][TWS][ROS   ][AL0] BER  0 SN 00
[02:12:19][FRQ 12222000][SND][   ][TWS][ROS   ][AL0] BER 30 SN 08
[02:12:18][FRQ 11494000][SND][   ][TWS][ROS   ][AL0] BER 29 SN 06
[02:07:33][FRQ 15867000][SND][   ][TWS][ROS   ][AL0] BER  0 SN 00
[02:07:33][FRQ 14582000][SND][   ][TWS][ROS   ][AL0] BER 30 SN 05
[02:07:33][FRQ 13907000][SND][   ][TWS][ROS   ][AL0] BER 30 SN 04
[02:05:48][FRQ 08912000][SND][   ][TWS][TS1   ][AL0] BER 28 SN 04
[01:49:05][FRQ 08912000][SND][   ][TWS][TS2   ][AL0] BER 22 SN 03
[01:31:52][FRQ 05909500][SND][   ][TWS][D31   ][AL0] BER 28 SN 05
[01:29:52][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[01:29:52][FRQ 12222000][SND][   ][TWS][D31   ][AL0] BER 23 SN 09
[01:29:52][FRQ 11494000][SND][   ][TWS][D31   ][AL0] BER 22 SN 06
[01:28:18][FRQ 14582000][SND][   ][TWS][D31   ][AL0] BER 28 SN 04
[01:27:36][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER 24 SN 04
[01:27:21][FRQ 13907000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[01:27:21][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER 24 SN 06
[01:27:20][FRQ 12222000][SND][   ][TWS][D31   ][AL0] BER 25 SN 04
[01:26:51][FRQ 10242000][SND][   ][TWS][D31   ][AL0] BER 24 SN 03
[00:52:07][FRQ 05732000][SND][   ][TWS][K70   ][AL0] BER 14 SN 03
[00:51:41][FRQ 07527000][SND][   ][TWS][I96   ][AL0] BER 25 SN 03
[00:44:45][FRQ 15867000][SND][   ][TWS][D31   ][AL0] BER 20 SN 04
[00:44:27][FRQ 11494000][SND][   ][TWS][D31   ][AL0] BER 17 SN 04
[00:42:57][FRQ 14582000][SND][   ][TWS][D31   ][AL0] BER 26 SN 03
[00:42:13][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER 24 SN 03
[00:41:57][FRQ 12222000][SND][   ][TWS][D31   ][AL0] BER 27 SN 03
[00:41:28][FRQ 10242000][SND][   ][TWS][D31   ][AL0] BER 21 SN 04
[00:35:38][FRQ 08912000][SND][   ][TWS][I96   ][AL0] BER 22 SN 04
[00:32:34][FRQ 15867000][SND][   ][TWS][I96   ][AL0] BER 24 SN 03
[00:32:18][FRQ 15867000][SND][   ][TWS][I96   ][AL0] BER  0 SN 00
[00:32:18][FRQ 14582000][SND][   ][TWS][I96   ][AL0] BER 29 SN 07
[00:32:18][FRQ 13907000][SND][   ][TWS][I96   ][AL0] BER 30 SN 05
[00:32:02][FRQ 11494000][SND][   ][TWS][I96   ][AL0] BER 22 SN 04
[00:31:46][FRQ 10242000][SND][   ][TWS][I96   ][AL0] BER 23 SN 03
[00:11:42][FRQ 13312000][SND][   ][TWS][ROS   ][AL0] BER  0 SN 00
[00:11:42][FRQ 12222000][SND][   ][TWS][ROS   ][AL0] BER 23 SN 04
[00:11:41][FRQ 11494000][SND][   ][TWS][ROS   ][AL0] BER 29 SN 04
[00:09:31][FRQ 20890000][SND][   ][TWS][ROS   ][AL0] BER 18 SN 03
[00:08:49][FRQ 20662000][SND][   ][TWS][ROS   ][AL0] BER  0 SN 00
[00:08:49][FRQ 18594000][SND][   ][TWS][ROS   ][AL0] BER 22 SN 03
[00:07:43][FRQ 20890000][SND][   ][TWS][K70   ][AL0] BER 27 SN 05
[00:07:28][FRQ 18594000][SND][   ][TWS][K70   ][AL0] BER 30 SN 05
[00:06:46][FRQ 13907000][SND][   ][TWS][ROS   ][AL0] BER 30 SN 05
[00:01:08][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[00:01:08][FRQ 07527000][SND][   ][TWS][D31   ][AL0] BER 25 SN 04
[00:01:08][FRQ 05909500][SND][   ][TWS][D31   ][AL0] BER 20 SN 03
[23:59:42][FRQ 20890000][SND][   ][TWS][D31   ][AL0] BER 30 SN 05
[23:59:26][FRQ 15867000][SND][   ][TWS][D31   ][AL0] BER 30 SN 11
[23:59:08][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[23:59:08][FRQ 12222000][SND][   ][TWS][D31   ][AL0] BER 29 SN 11
[23:59:07][FRQ 11494000][SND][   ][TWS][D31   ][AL0] BER 22 SN 08
[23:57:51][FRQ 18594000][SND][   ][TWS][D31   ][AL0] BER 15 SN 03
[23:56:54][FRQ 13907000][SND][   ][TWS][D31   ][AL0] BER 28 SN 08
[23:56:40][FRQ 14582000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[23:56:40][FRQ 13907000][SND][   ][TWS][D31   ][AL0] BER 26 SN 11
[23:56:39][FRQ 13312000][SND][   ][TWS][D31   ][AL0] BER 25 SN 08
[23:55:53][FRQ 11494000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[23:55:53][FRQ 10242000][SND][   ][TWS][D31   ][AL0] BER 27 SN 06
[23:55:26][FRQ 10242000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[23:55:26][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER 26 SN 04
[23:55:12][FRQ 10242000][SND][   ][TWS][D31   ][AL0] BER  0 SN 00
[23:55:12][FRQ 08912000][SND][   ][TWS][D31   ][AL0] BER 19 SN 06
[23:55:12][FRQ 07527000][SND][   ][TWS][D31   ][AL0] BER 18 SN 05
[23:54:35][FRQ 11494000][SND][   ][TWS][K70   ][AL0] BER  0 SN 00
[23:54:35][FRQ 10242000][SND][   ][TWS][K70   ][AL0] BER 30 SN 09
[23:54:35][FRQ 08912000][SND][   ][TWS][K70   ][AL0] BER 30 SN 06
[23:29:41][FRQ 13907000][SND][   ][TWS][T74   ][AL0] BER 21 SN 04
[23:19:25][FRQ 15867000][SND][   ][TWS][K70   ][AL0] BER 24 SN 04
 

brandon

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Nice catches Lindsay.
FWIW a few days ago I was reading an article in MT that talked about more USCG units moving to COTHEN which may explain the additional freqs. Funny thing because this morning I heard comms between the Service Center and USCGC 'Decisive' (ALE id UHC) which sounded like they were being introduced to the system.
 

brandon

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I don't know if this has already been posted but here is some good reading about the USCG expanding ops on COTHEN and other general info relating to the system.
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