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Messages - Land5urfer

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Utility / Re: EAM Activity on 3 Frequencies
« on: April 09, 2013, 2346 UTC »
McClellan gave a message of 39 characters followed by a message of 114 characters earlier. A lot of long messages today.

Good catch! Can you recall the time and frequency of both messages?

Utility / Re: EAM Activity on 3 Frequencies
« on: April 07, 2013, 1537 UTC »
Thanks for the 6925 tip, guys.

Spy Numbers / Re: Current Active Numbers Stations
« on: April 06, 2013, 1728 UTC »
There is a wealth of info and insight in this thread!  :o

Thank you!

Utility / Tandem EAM on 8992 kHz
« on: April 06, 2013, 0540 UTC »
Recorded two, 30 character messages on April 4 at 0205 Z, from Offutt.

Utility / Re: EAM Activity on 3 Frequencies
« on: April 04, 2013, 1703 UTC »
The "typical" (many times a day) frequencies for simultaneous EAMs are 4724, 6739, 8992, 11175, 13200, and 15016 kHz, all 6 carrying the same audio.  These are not the only frequencies that might carry parallel EAM transmissions, they are just the most common.  How clearly you hear each frequency will depend on propagation.  How many echos you hear in a transmission, and how deep they are, will also depend on propagation.

When the source is airborne the maximum number of frequencies can be smaller, depending on the platform.  Some aircraft types only support 3 or 4 parallel networks / transmissions on HF.  When the source is airborne you might also find the same EAM on UHF.


Thanks for your insight, Token.

It seems EAMs are a lot more abundant in light of the N. Korea situation.

Land5urfer, out.

Utility / EAM Activity on 3 Frequencies
« on: April 03, 2013, 1855 UTC »
This morning between 1143 - 1154 Z, Offutt AFB transmitted, I believe, the same 30 character message on USB frequencies: 11175, 4724, and 8992.

8992 was as clear as usual in SW Ontario, but the other two were just barely audible.

Utility / EAM Transmission on 8992 kHz (video)
« on: April 02, 2013, 0240 UTC »
I was poking around on U of Twente's WebSDR and caught this transmission last night at 0145z (9:45pm EST).

Utility / Re: EAM Activity on 8992MHz USB
« on: March 31, 2013, 1333 UTC »
Land5urfer, the two syllable, or two word, tactical call signs are a standard.  You will hear such very often.  Some change as frequently as every 6 hours, so the same station can be heard with multiple callsigns during a flight, and sometimes a station will have different callsigns on different nets or frequencies.  So that you will swear you heard that voice or that sound to the transmitter using a different callsign a minute ago, and you might be right.  Also the “for” portion of the message is frequent, a message can be “all stations” or it can be “for” specific recipients.


Man, I'd love to sit down and have a beer with you sometime.  :)

Spy Numbers / Re: SS5 on 10.715 MHZ cuban with dat HM01 ?
« on: March 30, 2013, 0329 UTC »
Very strong signal here in Troy, Ohio at 2220 utc

vince ka1iic

Same here in SW Ontario. I also jumped on  U of Twente's WebSDR (antenna in Holland) and could hear the transmission, but faintly.

Utility / Re: EAM Activity on 8992MHz USB
« on: March 30, 2013, 0327 UTC »
Yeah I have it here just now at 2045z as "For New Book".


Utility / EAM Activity on 8.992 MHz USB
« on: March 29, 2013, 1758 UTC »
Started at 16:45z, Mar. 29. Signal is weak up here in SW Ontario, can just barely hear female voice reciting phonetic / numeric code. Transmitted for less that 60 seconds, then followed by another short message at approx. 16:50 z for less that 60 seconds. Another message transmitted at 17:00 z, for less than 60 seconds; heard "Sierra, romeo, whiskey, sierra, yankee, two..."  Then another 40 sec. message was transmitted at exactly 17:30 z, but the signal was still too weak to hear the complete details.

---Update, 18:00 z: another message with same lead-in "SRWSY2..." Signal was still too weak to hear complete transmission.

---Update, 18:45 z: Signal is much stronger now, heard the following:  "This is Andrews... Core For new book, core for new book... YYAXM, YYAXM, standby."  Which was then followed by: "SRWSY2, SRWSY2, SRWSY2, message follows. VQ7PCSAQ627G, VQ7PCSAQ627G. This is Andrews, out."

Spy Numbers / Re: Spanish YL Voice Only
« on: March 27, 2013, 2321 UTC »

This is Cuban numbers station V02a. 


Spy Numbers / Spanish YL Voice Only
« on: March 27, 2013, 1125 UTC »
Numbers-only transmission on 9.155 MHz at 10:00 Z. Missed the beginning, but it ended with "Finale, finale, finale" at 10:41 Z. The carrier stayed on until 10:53 Z.

Spy Numbers / HM01 at 10.715 and 11.530 MHz
« on: March 23, 2013, 0518 UTC »
Managed to record several minutes of the digital & voice transmissions for HM01 today, between 22:00 and 23:54 zulu.

(10.715 MHz)  http://youtu.be/YIyVrqNlwBw
(11.530 MHz)  http://youtu.be/F-MPjsuiPEg


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