Messages

736

HF Mystery Signals / Re: UNID Digital mode? Noise? on 7570 kHz (WRMI TX 11) 0527 UTC 18 July 2023

« on: July 19, 2023, 1847 UTC »

Thank you for the link. I follow Antonio's work regularly. Interesting enough, there has been no update on the subject since November 2018. After nearly 5 years of testing and no recent reports one must assume that there is nothing significant on the LSB.

In my opinion DRM on HF is junk. The only worthwhile transmissions which I have enjoyed listening to were the Brazil DRM Experimental transmissions of February 2021. Despite employing the full 10 kHz of channel bandwidth, the audio was streaming in AAC+ format at 12.46 kbps and unfortunately still sounded like a low bit rate MP3. Still, those transmissions are the best DRM ones that I have heard so far.

Experimental DRM station in Brazil, 11910 kHz, 09 JAN 2020, 2313 UTC
https://www.hfunderground.com/board/index.php/topic,76670.msg255323.html#msg255323

WINB DRM Schedule:
https://www.short-wave.info/index.php?station=WINB%20DRM

737

Utility / Re: HFGCS General Log

« on: July 19, 2023, 1744 UTC »

191332Z JUL 2023 11175.0 kHz USB
13:32Z TANGO 355 calling MAINSAIL for radio check; L/C.

191445Z JUL 2023 11175.0 kHz USB
14:45Z GOPHER 04 calling MAINSAIL for radio check; L/C.

191501Z JUL 2023 11175.0 kHz USB
15:01Z GOPHER 04 calling MAINSAIL for radio check; L/C.

738

HF Mystery Signals / Re: UNID Digital mode? Noise? on 7570 kHz (WRMI TX 11) 0527 UTC 18 July 2023

« on: July 19, 2023, 0301 UTC »

I have had this discussion with someone else and have been told that this is not data. It is a residual effect of DRM when only transmitted on a single SSB. I have heard the same speculations that WINB wanted to use the LSB for HFT data but cannot due to regulations. An HF broadcast license will not permit this kind of operation.

I have seen this recently as well. Below is a June 2023 capture on 15720.0 kHz.

739

Utility / HFGCS Force Directional Message (FDM) and Emergency Action Message (EAM) Log

« on: July 19, 2023, 0206 UTC »

HFGCS Force Directional Message (FDM) and Emergency Action Message (EAM) Log

Daily call sign for 19 July 2023: RETALIATE (ground NCS), (airborne CP), (other)

190200Z JUL 2023
TO: ALL STATIONS
FROM: RETALIATE
MESSAGE OF 51 CHARACTERS FOLLOWS
F6OBIS // SNBKO HP4XO PQ3HO JGGHV G4WGN R63AZ NPKQI U3RP3 JYG6J

190204Z JUL 2023
TO: ALL STATIONS
FROM: RETALIATE
MESSAGE OF 51 CHARACTERS FOLLOWS
F6OBIS // SNBKO HP4XO PQ3HO JGGHV G4WGN R63AZ NPKQI U3RP3 JYG6J

Note: The 02:04Z msg was broadcast from an alternate NCS.

190218Z JUL 2023
TO: ALL STATIONS
FROM: RETALIATE
F6OITC // FF5KI X3Y3M TLV5K DE4L3 YEQV

190237Z JUL 2023
TO: ALL STATIONS
FROM: RETALIATE
YTDTOF // TUJSR LP6QZ E4YIT IUDZG LWBR

190246Z JUL 2023
TO: ALL STATIONS
FROM: RETALIATE
YTMQCS // OS2ZO KPVTV XJL6E MYDLY KENG

191833Z JUL 2023
TO: ALL STATIONS
FROM: RETALIATE
YTROA3 // BWJ4Z Q DISREGARD THIS TRANSMISSION, THIS IS RETALIATE OUT

Note: The 18:33Z msg was discarded due to an issue with item number 12.

191835Z JUL 2023
TO: ALL STATIONS
FROM: RETALIATE
YTROA3 // BWJ4Z Q3ZPQ HUQGV THA46 N7XE

740

North American Shortwave Pirate / Re: 77LJS 6935 USB was 6925 USB 0003 UTC 19 JUL 2023

« on: July 19, 2023, 0038 UTC »

00:37 UTC - Weak readable with the piano bar music;
00:38 UTC - Suddenly went off the air. Left with the Peskies on LSB;
00:40 UTC - Correction, switched frequency to 6935 USB.

RSPduo | Wellbrook loop antenna

741

HF Mystery Signals / Re: UNID Digital mode? Noise? on 7570 kHz (WRMI TX 11) 0527 UTC 18 July 2023

« on: July 18, 2023, 2342 UTC »

... some talk about the Kiwi network being used by HF traders to analyze conditions (at great disapproval by the developer of the Kiwi)

I had not heard of this but is very plausible and it would not surprise me one bit. HFT providers are currently lobbying the FCC to change their license from "experimental" to a full license stating that FCC rules governing HF are archaic.

There is a bit of a thread on the HFU with regards to the petition:
Market Makers” Want to Expand Their Use of Shortwave?
https://www.hfunderground.com/board/index.php/topic,115893.0.html

Although, I know there has been some speculation that WINB has been using half of their spectrum while running DRM to provide data services to HF traders.

That should be a breach of licensing and an immediate cause for a license suspension. If it is commercial data for revenue purposes and furthermore is encrypted it is game over, full stop. I hope someone is monitoring this.

742

Utility / Re: HFGCS General Log

« on: July 18, 2023, 1533 UTC »

181415Z JUL 2023 11175.0 kHz USB
14:15Z SHINER 40 calling MAINSAIL for radio check; no response;
14:16Z SHINER 40 calling ANY STATION for radio check; no response.

181455Z JUL 2023 11175.0 kHz USB
14:55Z OTIS 01 calling MAINSAIL for radio check; L/C
14:57Z OTIS 01 requesting SELCAL check: QSJQ; no response.

181500Z JUL 2023 11175.0 kHz USB
15:00Z SHINER 40 calling MAINSAIL for radio check; L/C.

182030Z JUL 2023 11175.0 kHz USB
20:30Z RED RIVER calling ANY STATION for radio check; no response.

743

Utility / HFGCS Force Directional Message (FDM) and Emergency Action Message (EAM) Log

« on: July 18, 2023, 1522 UTC »

HFGCS Force Directional Message (FDM) and Emergency Action Message (EAM) Log

Daily call sign for 18 July 2023: TORTILLA (ground NCS), (airborne CP), (other)

181514Z JUL 2023
TO: ALL STATIONS
FROM: TORTILLA
F6EEHA //
F6ET         DISREGARD THIS TRANSMISSION, THIS IS TORTILLA OUT

Note: The preamble for the 15:14Z msg was wrong.

181515Z JUL 2023
TO: ALL STATIONS
FROM: TORTILLA
MESSAGE OF 42 CHARACTERS FOLLOWS
F6ETHA // QD63G ERDQO DVF2I CQKOD REOSJ FERO4 J5U4I O

181536Z JUL 2023
TO: ALL STATIONS
FROM: TORTILLA
MESSAGE OF 58 CHARACTERS FOLLOWS
F6GHJK // AEJFQ 62WUN XVKVL UUMO2 WWOFL RWJ4S D6EAH I6LJY HI6QJ YHI6Z JL

182102Z JUL 2023
TO: ALL STATIONS
FROM: TORTILLA
YTAFQP // OC5UB YTXK3 QKUX4 J6KID QHYE

744

HF Mystery Signals / Re: UNID Digital mode? Noise? on 7570 kHz (WRMI TX 11) 0527 UTC 18 July 2023

« on: July 18, 2023, 1420 UTC »

These are presumed to be associated with High Frequency Trading (HFT) activities. I refer to these as "The Swath" or "Energy Swath" and are just terms that I coined to describe it.

Myself and others have documented a few of these over the years on the HFU.

The Swath 7880 (C) 0028 UTC 19 DEC 2022
https://www.hfunderground.com/board/index.php/topic,106992.msg335708.html#msg335708

UNID 6940.0 kHz (Centre Frequency) 00:00 UTC 01 FEBRUARY 2022
https://www.hfunderground.com/board/index.php/topic,92398.msg295091.html#msg295091

If you use the "search" feature on the board and enter HFT or High Frequency Trading you should find the posts.

745

Utility / Trenton Military General Log

« on: July 18, 2023, 1406 UTC »

Trenton Military General Log: 2023-07-18

181356Z JUL 2023 11232.0 kHz USB
13:56Z HUNTER 23 with TRENTON MILITARY with request for SELCAL check: BREM
13:58Z HUNTER 23 negative SELCAL. Standby, will switch radios and reassess;
14:01Z TRENTON MILITARY calling HUNTER 23 for radio check;
14:02Z HUNTER 23 calling TRENTON MILITARY for RC; request for SELCAL check: BREM
14:03Z HUNTER 23 good SELCAL. Will maintain SELCAL watch as backup.

182040Z JUL 2023 11232.0 kHz USB
20:40Z DAEMON 20 with TRENTON MILITARY;
20:42Z DAEMON 20 with msg to 19 Wing Ops//RJOC Pacific
     BREAK GROUPS 11
     Z37 AAG 3VH OMQ RNY KXG 44S 4TR BQD (TRENTON MILITARY: did not copy after PAPA over);
     P?X M3F
20:45Z TRENTON MILITARY roger out.

Note: 1) DAEMON 20 was unreadable to my location.
2) 19 Wing Ops is located at CFB Comox.

746

Utility / Re: HFGCS General Log

« on: July 17, 2023, 2300 UTC »

172030Z JUL 2023 11175.0 kHz USB
20:30Z RED RIVER calling ANY STATION for radio check; no response;
20:31Z RED RIVER calling ANY STATION for radio check; no response.

747

Utility / Trenton Military General Log

« on: July 17, 2023, 1532 UTC »

Trenton Military General Log: 2023-07-17

171420Z JUL 2023 11232.0 kHz USB
14:20Z GREENWOOD MILITARY calling TRENTON MILITARY for radio check; L/C.

171509Z JUL 2023 11232.0 kHz USB
15:09Z ATLAS 339 calling TRENTON MILITARY requesting traffic and SELCAL check: FMGL (both stations were weak barely readable).

171938Z JUL 2023 11232.0 kHz USB
19:38Z RESCUE 333 calling TRENTON MILITARY with request;
19:39Z CANFORCE 333 calling TRENTON MILITARY with request;
19:40Z TRENTON MILITARY, RESCUE 333 nothing heard.

748

North American Shortwave Pirate / Re: Outhouse Radio 6950 USB 0336 UTC 17 JUL 2023

« on: July 17, 2023, 0438 UTC »

04:35 UTC - Good readable with Shake Rattle and Roll;
04:36 UTC - Station ID.

Good to hear you back on the air.

RSPduo | Wellbrook loop antenna

749

Shortwave Broadcast / WBCQ 6160 AM 0400 UTC 17 JUL 2023

« on: July 17, 2023, 0428 UTC »

WBCQ 6159.930 kHz AM 04:00 UTC 17 JUL 2023

04:00 UTC - UNID (WBCQ or Pyongyang BS) loud and clear with English music segment. Actual frequency 6159.930 kHz.

I have not been able to find this program on WBCQ's program grid and in 30 minutes of listening there has been no announcements, hence UNID.

RSPduo | Barker & Williamson T2FD and Wellbrook loop antennae
ICOM IC-R75 | Mini-whip active antenna

750

Utility / HFGCS Force Directional Message (FDM) and Emergency Action Message (EAM) Log

« on: July 17, 2023, 0237 UTC »

HFGCS Force Directional Message (FDM) and Emergency Action Message (EAM) Log

Daily call sign for 17 July 2023: DESCRIBE (ground NCS), SLIPPERY (airborne CP), (other)

170232Z JUL 2023
TO: ALL STATIONS
FROM: DESCRIBE
YTYZOB // ZNGCB AOUP2 C7K4I ZXIWI EPGQ

171519Z JUL 2023
TO: ALL STATIONS
FROM: WINDPIPE
YTLFPZ // 3WT6S SQPLG PAIMO RGJOI U5KB

Note: The 16 July 2023 daily call sign was used by the NCS for the 15:19Z msg broadcast.

171525Z JUL 2023
TO: ALL STATIONS
FROM: DESCRIBE
YTLFPZ // 3WT6S SQPLG PAIMO RGJOI U5KB

171533Z JUL 2023
TO: ALL STATIONS
FROM: DESCRIBE
YTLFPZ // 3WT6S SQPLG PAIMO RGJOI U5KB

Note: The 15:33Z msg was broadcast by an alternate NCS.

171534Z JUL 2023
TO: ALL STATIONS
FROM: DESCRIBE
YTLFPZ // 3WT6S SQPLG PAIMO RGJOI U5KB

171728Z JUL 2023
TO: ALL STATIONS
FROM:
MESSAGE OF 3? CHARACTERS FOLLOWS
F6GZ ?-?-?-? OAQIBWKPRDOT4U6B2WBKKWFATK

172036Z JUL 2023 11175.0 kHz USB
20:36Z SLIPPERY with DESCRIBED with request to enter the net followed by authentication challenge;
20:39Z SLIPPERY entered the net at 20:39Z.