HFU HF Underground
Loggings => Utility => Topic started by: Looking-Glass on July 19, 2017, 0910 UTC
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The following is a list compiled of known active CW maritime beacons/markers both military and civilian, reception of all are in the A1A mode (CW). The last date when heard is shown in brackets and other notes. Please post any new ones heard with UTC date/time, frequency, call sign and report.
Please note that these are not 24 hour beacons, they do spend time off air.
Stations not heard between 2022 through to 2024 have been deleted, presumed inactive or decommissioned. Should they reappear they can be reinstated later.
These are observations as of Friday 17th of July 2026:
1648z 2.680.0MHz CW "VVV de 4XZ 4XZ" Israeli Navy, Haifa Israel 319 report. in/out (Sometimes sends data) (hrd 08th June 2026)
1800z 4.209.5MHz CW "TAH" preceded with buzz tones, Turkish Met Radio, Istanbul, Turkey 559 report. (hrd 16th Nov 2025) (sending data SITOR-B)
1825z 4.210.5MHz CW "XSQ" preceded with buzz tones. Guangzhou, China 519 report. (hrd 17th July 2026)
1902z 4.212.0MHz CW "XSQ" preceded with four buzz tones, Guangzhou, China 519 report. (hrd 14th July 2026)
1902z 4.215.0MHz CW "XSG" preceded with four buzz tones, Shanghai, China 519 report. (hrd 14th July 2026)
1903z 4.331.0MHz CW "VVV 4XZ 4XZ" Israeli Navy, Haifa, Israel 319 report. (also transmits data) (hrd 14th July 2026)
1045z 6.316.0MHz CW "XSQ" preceded with buzz tones, Guangzhou, China 549 report. (hrd 12th June 2026)
0952z 6.326.0MHz CW "XSG" preceded with buzz tones, Shanghai, China 559 report. (hrd 15th May 2026)
1031z 6.329.0MHz CW "XSQ" preceded with buzz tones, Guangzhou, China 519 report. (formerly XSV Tianjin & XSG Shanghai) (hrd 17th July 2026)
1903z 6.607.0MHz CW "VVV de 4XZ 4XZ" Israeli Navy, Haifa, Israel 319 report. (Often sends data.) (hrd 14th July 2026)
1903z 8.421.0MHz CW "XSQ" preceded with four buzz tones. Guangzhou, China. 559 report. (hrd 14th July 2026).
1944z 8.424.0MHz CW "de SVO" Olympia Radio, near Athens, Greece 539 report. (hrd 13th July 2026)
0936z 8.425.5MHz CW "XSG" preceded with four buzz tones, Shanghai, China 519 report. (hrd 13th July 2026)
1838z 8.431.0MHz CW "XSQ" preceded with buzz tones, Guangzhou, China 559 report. (hrd 17th July 2026)
1822z 8.431.0MHz CW "TAH" preceded with buzz tones, Turkish Met Radio, Istanbul, Turkey 519 report. (hrd 05th Oct 2025)
1945z 8.433.0MHz CW "XSG" preceded with buzz tones, Shanghai, China 539 report. (hrd 06th August 2024)
1638z 12.603.5MHz CW "SVO" starts with "de SVO" (no buzz tones), Athens, Greece 319 report. (08th June 2026)
0615z 12.613.0MHz CW "XSQ" preceded with four buzz tones, Guangzhou, China 519 report. (hrd 14th July 2026)
2335z 12.624.0MHz CW "XSQ" preceded with buzz tones, Guangzhou, China. 519 report. (14th July 2026)
0621z 12.637.5MHz CW "XSG" preceded with four buzz tones, Shanghai, China. 519 report. (hrd 13th July 2026)
2339z 12.648.5MHz CW "XSQ" preceded with four buzz tones, Guangzhou, China 529 report. (hrd 14th July 2026)
0535z 12.654.0MHz CW "TAH" preceded with buzz tones, Turkish Met Radio, Turkey 529 report. (hrd 05th Oct 2025)
0615z 16.850.3MHz CW "XSQ" preceded with four buzz tones, Guangzhou, China 529 report. (hrd 14th July 2026)
0615z 16.880.0MHz CW "XSQ" preceded with four buzz tones, Guangzhou, China 419 report. (hrd 14th July 2026)
0415z 16.898.5MHz CW "XSG" preceded with four buzz tones Shanghai,China 519 report. (hrd 15th Dec 2025)
0617z 16.695.0MHz CW "XSG" preceded with four buzz tones, Shanghai, China 539 report. (hrd 14th July 2026)
Japan Fisheries Radio Network:
The JFR Network covers HF frequencies in CW mode 3-22MHz and usually transmit on the hour and on the half hour with a callsign preamble then a request for traffic, there are also current weather warnings broadcast. If sufficient interest/comment is received I will publish the other frequencies down to 3MHz.
I have noticed over the past three or so years a sharp decline in traffic being worked suggesting that this service and mode will be retired in the near future, so hear them while you can. JFE on Okinawa has not been heard for around four years which suggests that this station has already been decommissioned. Likewise JFR, JFR2 and JFX haven't been heard on 22.642.0MHz for many months suggesting the sites have been closed down. So get them while you can as the Japan Fisheries Radio network on CW is gradually being closed down.
22.681.5MHz JFS Amori, JFT Kamaishi, & JFW Fukushima. (hrd June 2026) , only Fukushima)
22.642.0MHz JFR Nagasaki, JFR2 Nagasaki & JFX Kagoshima. (JFR Nagasaki heard 0145z 07th June 2026)
22.606.5MHz JFG Shizouka, JFM Muroto & JFH Mie. (hrd June 2026, only Shizouka and Muroto, nothing from Mie)
17.231.0MHz JHA Ibaraki & JFC Kanagawa.
17.180.0MHz JFE Okinawa
17.140.0MHz JFR2 Nagasaki,
17.132.0MHz JFS Amori, JFT Kamaishi & JFW Fukushima.
17.014.0MHz JFR Nagasaki, JFX Kagoshima.
16.976.8MHz JFG Shizouka, JFM Muroto & JFH Mie. (JFG Shizouka & JFM Muroto heard June 2026)
16.942.8MHz JSB Hokkaido.
13.024.5MHz JSB Hokkaido
12.880.0MHz JFE Okinawa
12.858.0MHz JFT Kamaishi & JFW Fukushima. (JFW hrd June 2026)
12.832.5MHz JFC Kanagawa & JHA Ibaraki.
12.811.5MHz JFM Muroto, JFH Mie, JFG Shizouka. (JFM, JFG & JFH hrd June 2026)
12.704.5MHz JFR2 Nagasaki, JFX Kagoshima
HLF, HLJ, HLO, HLW etc Korea Telecom transmitters are all 3Kw to Log Periodic antennas from an area outside Seoul.
SVO Olympia Radio uses 10Kw transmitters to ND TCI 540-2-04 antenna system at Volakas, west of Athens on the coast.
TAH Istanbul Radio, Turkey runs a 10Kw transmitter, antenna system not known, transmitter near Istanbul.
XSG & XSQ China, transmitter and antenna array not known.
Interesting to note in late 2025 that Turkish station "TAH" from Istanbul might have closed down the 12.654.0MHz and 8.431.0MHz transmissions, both not heard for around four months although "SVO" in Greece has been logged.
"SVO" popped back up on 12.603.5MHz during mid May 2026 after a prolonged absence. As of May 2026 no "TAH" transmissions on 8 or 12MHz have been logged (last logged October 2025) so it maybe safe to presume that these services have been discontinued by the Turkish Met office.
Chinese marker "XSG" on 16.695.0MHz CW reappeared in mid May 2026 after a lengthy absence. Nothing has been heard from "XSG" in Shanghai on 16.898.5MHz for near seven months now, last logged 15th of December 2025. Chinese marker "XSG" on 4.215.0MHz has been signing as "de XSG" during June 2026, a change of format, however, in July 2026 it had dropped the "de" prefix once again.
Telecom Korea HLO, HLW, HLJ, HLG etc: These HF band CW transmissions ceased on all HF frequencies during late 2022 and all stations have been officially closed. Thus they all have been removed from the listings as of March 2024.
For those who collect QSL cards SVO, TAH and HLF, HLG, HLJ, HLO & HLW have issued QSL cards to DXers in the past, providing you send a report in UTC date/time format. The Chinese stations, as far as I know, do not QSL.
Where time permits I will try an update the list each month.
(updated Friday 17th of July 2026)
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CW beacons/markers
8419.2 kHz XSV - Tianjin Radio, China from 1335z 7 Aug 2019
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8425.5 kHz XSG - Shanghai Radio, China w/ tfc from 1352z 7 Aug 2019
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Hearing the cw beacons on 4211.8khz XSQ
4214.8 KHZ XSG
ICOM R8500 Receiver with mutliband dipoles 2 to 10 mhz , longwire 200mtrs , and verticals for 11 to 30mhz
ZS6AF
KG54KM
NELSPRUIT
SOUTH AFRICA
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Have revised and up dated the list where possible, any changes or additions you may come across please post here using the UTC date/time format...thanks! ;)
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New logging heard this morning by accident Tue 24th March 2020:
4.560.0MHz CW "TAH" preceded with buzz tones, Turkish State Met Office, Istanbul, Turkey. 539 report 1955z.
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Marine CW beacons have been updated today Thursday 26th March 2020.
Any news such as additions or call sign changes and other observations welcome, please post with date and time (UTC format) and report.
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Any one hearing XSV Tianjin?
The last two known frequencies on 8MHz have been replaced with XSG Shanghai in last few months.
Maybe XSV has been withdrawn from service?
Post please if you hear it with frequency date/time in UTC and report...LG ;)
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Beacon list being updated during late August, any one with some amendments please post, thanks. ;)
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Beacon list being updated during late August, any one with some amendments please post, thanks. ;)
Yes, you may add this from my log:
1435z 4.009.0 MHz CW "VVV de 4XZ 4XZ" Israeli Navy, Haifa, Israel 599 report. (hrd 13th August 2020)
A rarely used frequency for Haifa Naval.
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Thank you Costas, by chance, did you hear 4.331.0MHz at the same time? Interesting to see if they were both on air together, at present 1625z I have 4.331.0MHz at 419 report but nothing on 4.009.0MHz. LG :)
You logging has been added to the main list, thanks again...LG
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Sorry I did not check 4331 at the time. Howevwe I did check 6607 and it was active.
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Thanks Costas, when you have some time please check the following for me as they have not been heard this season:
SVO Olympia Radio 8.424.0MHz
TAH Istanbul 4.209.5MHz
4.560.0MHz
8.434.0MHz
I think Olympia Radio on 8.424.0MHz may be off air as I hear TAH on 8MHz regular on 8.431.0MHz.
Appreciated.... ;)
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List at the top of this page updated Sunday 06th September 2020, any one with loggings please submit. :)
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Does any one know the status of the WLO beacons on 4, 6 & 8MHz from Mobile, Alabama USA? They have not been heard for well over one year, leading me to think they have been decommissioned. Any information gratefully accepted, failing that they will be deleted from the list.
Appreciated. :)
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Does any one know the status of the WLO beacons on 4, 6 & 8MHz from Mobile, Alabama USA? They have not been heard for well over one year, leading me to think they have been decommissioned. Any information gratefully accepted, failing that they will be deleted from the list.
Appreciated. :)
https://forums.radioreference.com/threads/wlo-shipcom-has-gone-dark.373002/
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List at the top of this topic up dated today, Sunday 27th September 2020. All reference to "WLO" Mobile, Alabama USA deleted as beacons no longer on air. Any people with loggings, especially of beacons not heard for many months, please submit. Thanks. ;)
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List at top of page updated today, Friday 16th of October 2020, further updating tomorrow.
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List at top of page 1 updated today Monday 16th November 2020.
Any one with amendments or logs please post here. :D
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List at top of page 1 updated on Saturday 05th of December 2020.
Please send any amendments or post observations/loggings, thank you. :)
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Hi guys.
The following is a list compiled of known active CW maritime beacons/markers both military and civilian, reception of all are in the A1A mode (CW). The last date when heard is shown in brackets and other notes. Please post any new ones heard with UTC date/time, frequency, call sign and report.
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HLF, HLJ, HLO, HLW etc Korea Telecom transmitters are all 3Kw to Log Periodic antennas from an area outside Seoul.
SVO Olympia Radio uses 10Kw transmitters to ND TCI 540-2-04 antenna system near Athens.
TAH Istanbul Radio, Turkey runs a 10Kw transmitter, antenna system not known, transmitter near Istanbul.
XSG & XSQ China, transmitter and antenna array not known.
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(updated: Saturday 05th December 2020.)
I may have some hints on the tx-sites for:
- HLF, HLJ, HLO, HLW -> 37.176718, 126.663407 (PM37HE)
- SVO -> 37.604181, 21.488436 (KM07RO)
- TAH -> 41.118194, 28.940389 (KN41LC)
- XSG -> 31.310408, 121.830308 (unsure)
- XSQ -> 23.157083, 113.514044 (unsure)
China is not that precise in giving tx positions so tha data for XSG and XSQ is vague.
Any hint on their real TX-QTH is very much appreciated here.
Hope this helps.
Kind reagrds and stay safe.
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List updated as of 0800z Sunday 24th January 2021.
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The list has been updated during 04th March, which appears at the header on page one. Any amendments would be appreciated. 8)
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The list has be updated on Saturday 10th April 2021, any logging reports would be appreciated.
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The list has be updated on Saturday 10th April 2021, any logging reports would be appreciated.
Link to a report that I moved from HF Beacons to Utility: Beacon de SVO 8424 CW 0005 UTC 10 Apr 2021
https://www.hfunderground.com/board/index.php/topic,80115.0.html
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The list on page one has been updated today, Sat 15th May 2021. Any further loggings or notes appreciated. ;)
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The main source list on page 1 has been updated current Thursday 04th June 2021, any additional observations or reports welcome.
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The main source list on page 1 updated Friday 20th August 2021, any additional observations or reports welcome.
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The main source frequency list on page one intro has been updated today, Saturday 12th September 2021.
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The main source frequency list on page-1 has been updated today Mon 25th Oct 2021.
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The main source frequency list on the page-1 header has been updated today. In irregularities or additions, please send your log extract. ;)
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The main source listing at the head of page-1 has been updated today, Saturday 12th December 2021.
Of special note is the absence of the two Telecom Korea 24 hour beacons in Seoul on 8MHz, I haven't heard either for two months now (maybe they have been withdrawn from service), any one hearing them please post here with report, date and time in UTC, much appreciated.
8.484.0MHz CW HLG
8.636.0MHz CW HLW
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8690kHz un-id cw /tfc JFX? 1605z 19 Dec /21
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8.690.0MHz CW is shared by JFX Kagoshima, JFR Nagasaki & JFR2 Nagasaki, don't have the sked list so not sure which one you have received. ;)
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Main beacon listing (header on page one) has been updated as of 03rd January 2022. ;)
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Main beacon listing (atop of page-one) has been updated as of Wednesday 02nd February 2022.
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Beacons from Israel 4XZ all in at 1715z 24th Feb 2022:
2.680.0MHz 4XZ 419 report.
4.331.0MHz 4XZ 519 report.
6.607.0MHz 4XZ 519 report.
Nothing heard from 8 or 9MHz allocation. Anyone hearing them please submit a logging, thank you.
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Beacon listing updated today Saturday 05th March 2022.
Looking for Israeli station 4XZ on 8.319MHz & 9.377MHz CW, not heard for some time, any one hearing them please post with signal report, date and time in UTC format. Thanks.
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"SVO" Olympia Radio, Athens, Greece, not been heard on 6321.5MHz CW since September 2020, has anyone heard it of recent? Its 8MHz brother is still active and heard each day.
Please submit date/time in UTC and RST if you have heard 6321.5MHz SVO this year, appreciated. :)
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As with the two Telecom Korea marker beacons on 8MHz, I think it's safe to presume that "SVO" Olympia Radio on 6321.5MHz has been closed down, not heard for over 18th months.
Telecom Korea marker beacon on 22.611.5MHz is no longer transmitting 24 hours, it appears intermittently.
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The variance of 22.611.5MHz continues, new format heard today:
0150-0209z "VVV VVV VVV de HLG HLG HLG TFC LIST" 539 report, went off air at 0209z.
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Main list at head of page updated today.
New logging:
1522z 8.432.0MHz CW "V V V 4XZ 4XZ X X " Israeli Navy, Haifa, Israel 529 report.
Is anyone hearing 4XZ on 2.680.0MHz of recent? Please post if hearing it, thanks.
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The main list at the head of page 1 has been updated.
4XZ Israeli Defence Force on 8.432.0MHz CW come and goes on an ad hoc basis.
HLW2 Seoul South Korea is still off air on 12.923.0MHz CW probably decommissioned.
The 22.611.5MHz Telecom Korea frequency changes call signs at various time from HLG to HLF and vice versa, reasons unknown.
4XZ on 2.680.0MHz CW has been heard in recent days.
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Three new transmissions have appeared out of China on Sat 02nd July 2022:
1310z 4.210.5MHz CW "XSQ" preceded with buzz tones. 559 report. (Guangzhou)
1315z 8.421.0MHz CW "de XSG" preceded with buzz tones. 569 report. (Shanghai)
1318z 12.624.0MHz CW "XSQ" preceded with buzz tones. 559 report. (Guangzhou)
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Your hard work in compiling at that data and posting is appreciated. Interesting monitoring.
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Thank you, glad someone reads and gets use out of it. They are a slow dying breed the marine CW transmissions. I mainly use them as propagation path indicators.
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New logging, today Tue 13th Sep 2022:
16.850.3MHz CW "XSQ" 589 report. 0933z
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22.611.5MHz HLF & HLG transmitter sharing.
At 52 minutes past the hour the normal "HLF" transmission is suspended and replaced with "VVV VVV VVV de HLG HLG HLG TFC List" until two minutes past the hour when a station radio operator takes over and manually sends the traffic list. At five minutes past the hour transmission reverts back to the normal "HLF" format
Logged on Thursday 15th September 2022.
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List updating conducted during first week of October 2022, any new loggings or observations please submit...tnx
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List updating for November 2022 has commenced, any updates appreciated.
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The 450 foot long wire works. Amazing signal repors. Thank you from Wisconsin USA.
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Thank you, it's actually around 500 feet long as I added some to it a few months back. Works well on the MW & NDB band but tends to drag in too much noise.
For general HF loggings I tend to switch from different antenna's too.
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Updating of the list has commenced from today.
22.611.5MHz was back as "HLG" today at 0005z instead of the usual "HLF" callsign.
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16.880.0MHz "XSQ" was noted to day reverting back to the July 2022 call of "de XSG" at 0620z with a 539 report.
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It appears that 16.880MHz is a shared frequency between "de XSG" and "XSQ" starting back in July 2022.
A similar situation also exists with Telecom Korea station on 22.611.5MHz which alternates between "HLG" and "HLF" for reasons unknown.
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16.880.0MHz has reverted to "de XSG" format once again at 0010z on Tuesday 02rd January 2022. 549 report.
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22.611.5MHz CW has not been heard in recent weeks in either the "HLG" or "HLF" formats.
Propagation has been there as three of the Japan Fisheries stations on 22MHz have been logged, also Japanese CB radio on 27.005MHz AM has been in also, plus the Chinese beacons on 16MHz have been audible also.
Usual times for 22.611.5MHz are between 2300-0100hrs UTC with transmissions on the hour, anyone hearing this station please post...thanks! ;)
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Telecom Korea stations on marine CW look like they were decommissioned/terminated at the end of 2022?
None of the 22MHz, 17MHz, 16MHz or 12MHz services have been logged in recent weeks although propagation has been there with Japan and China noted on 22MHz, 16 & 12MHz CW.
The South Korean marine radio HF network started a revision of transmissions on HF CW during 2020/2021 with the withdrawl of the two 8MHz transmitters.
The next step was during 2021 with nearly all of the 24 hour beacon markers reduced to part time transmissions, 22.611.5MHz was the first to have transmission restrictions in place.
Sadly, the end of yet another marine CW service on the HF bands?
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It is presumed that Telecom Korea, in Seoul, South Korea have ceased all operations of their HF marine transmissions on CW with nothing reported from HLF, HLG, HLW, HLW2, HLO or HLJ on 12, 16, 17 or 22MHz.
Downgrading of many of the transmitters from 24 hours to part time transmissions commenced during 2022, heading towards the eventual shutdown of all services by the end of the year.
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logged the 2 CW stations tonight:
8424 khz SVO 0130 UTC 5-MAR-2023 579 Greece
8431 khz TAH 0135 UTC 5-MAR-2023 559 Turkey
Icom 7410 and multiband dipole.
Madison, WI.
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Nice work there Kevin, nothing heard from the South Koreans? I think they have retired their CW transmissions. Although the Japanese are very active on 22MHz marine CW each day, last of a dying breed hanging in there.
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For those interested in maritime CW I have published a list of Japan Fisheries Radio frequencies at the bottom of the main page 12-22MHz.
The monthly update of the main directory has also commenced for March 2023.
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Main listing on page 1 of this site has been updated.
Sad to say, Telecom Korea in Seoul, South Korea has quit the HF marine band CW mode effective December 2022. All of their HF A1A mode (CW) transmissions on 8, 12, 17 and 22MHz have been terminated.
Many DXers have a QSL card in their collection of one of the HF stations, they were always good at replying to a QSL request providing the SWL report was accurate and in the proper format. They will be missed!
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Updates for May 2023 have started on the main frequency listing sheet on page 1.
Additions or observations welcome, submissions must be in the UTC date and time format. ;)
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Olympia Radio, near Athens, Greece heard this evening for the first time.
"de SVO" on 12.603.5MHz CW 539 report.
Unsure of status as to whether a permanent or temporary transmission.
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SVO is heard on a fairly regular basis.
Beacon de SVO 8424 CW 0005 UTC 10 Apr 2021
https://www.hfunderground.com/board/index.php/topic,80115.msg325864.html
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Thanks for that, it was not on the SVO current frequency list for 12MHz though, regular on 8MHz. Coming through now on Monday 05th June 2023:
12.654.0MHz TAH 319 report 0755z
12.648.5MHz XSQ 539 report 0755z
12.637.5MHz XSG 529 report 0756z
12.603.5MHz SVO 539 report 0756z
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Not a recent list but the page below does have a list of frequencies for SVO.
Olympia Radio:
https://www.utilityradio.com/stations/europe/grc/grc-309.htm (https://www.utilityradio.com/stations/europe/grc/grc-309.htm)
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Thanks for that, have seen those frequencies sometime back, many have been discontinued "beacon/marker" wise due to reforms. CW on the marine band HF is a dying art of communications.
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Has any one heard Olympia Radio "SVO" on 8.424.0MHz CW in recent weeks?
Has not been heard here since May 2023, "TAH" in nearby Istanbul, Turkey on 8.431.0MHz has been heard on a regular basis proving the band is open to that region but no "SVO".
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8.421.0MHz 0915z Thu 03rd August 2023 is now "de XSG" Shanghai, previously "XSQ".
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List on lead page updated to Sunday 03rd September 2023.
8.421.0MHz "XSG" has reverted back to "XSQ" noted 0951z 549 report.
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Frequency list on page one (header) has been updated.
8.421.0MHz formerly "de XSG" is still transmitting as "XSQ".
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Frequency log listing on page one has been updated.
8.421.0MHz "de XSG" now signing as "XSQ".
12.603.5MHz "de SVO" has not been heard for some weeks, anyone hearing it?
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The last entry in my log for SVO on 12603.5 dates back to 29 July 2023 at 03:40 UTC. It is not a station that I regularly check on.
290340Z JUL 2023 12603.5 kHz CW
03:40Z SVO with beacon ID: DE SVO; loud and clear.
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Thanks for that, it doesn't always send the marker ident in CW, outside of data transmissions.
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List up dated today Wednesday 03rd January 2024.
Happy New Year to all for 2024. 8)
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List (on page 1) has been updated today Sunday 04th Feb 2024.
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The South Korean maritime CW service has shut down as of December 2023
Video here: https://youtu.be/KpTFGW47ul4
Not too sure if it's just HLG or it's the whole country's service.
End of an era. Over 100 years of maritime code
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Thanks Chris, had an email from a mate in Seoul saying all services terminated.
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Call sign change noted this week:
12.613.0MHz CW "XSQ" is now signing as "de XSG" noted at 0740z on the 08th of March 2024.
However, by Saturday 09th of March it had reverted back to "XSQ" heard at 0920z.
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List page one has been updated today. ;)
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Main listing on page 1 updated today.
The following will be removed from the main list if not heard this month, presumed inactive/off air/withdrawn from service:
16.876.5MHz XSQ April 2021
16.854.0MHz XSQ June 2022
12.622.5MHz XSQ June 2022
8.435.0MHz XSQ June 2022
8.432.0MHz 4XZ May 2022 (probably a one off transmission, not heard since)
4.219.0MHz XSQ May 2022
4.216.0MHz TAH Sep 2022
If an one hears any of the above please post here...thank you. 8)
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The master list on page one "header" has been updated as of Tuesday 11th of June 2024, anyone with any changes or loggings please submit.
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Main header list on page one updated today Sunday 07th July 2024.
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Monthly updates of main header page for August have started.
A revision of the listings have been made and the following stations have been deleted as they have not been heard for the past two years so presumed inactive:
16.854.0MHz XSQ
16.876.5MHz XSQ
12.622.5MHz XSQ
8.435.0MHz XSQ
8.432.0MHz 4XZ
4.219.0MHz XSQ
4.216.0MHz TAH
Should any one hear the above please submit a logging and the said station will be reinstated to the list.
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New beacon logged this evening:
12.649.5MHz XSG 0815z 559 report mode A1A.
This has been added to the main list on page 1.
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The main header list has been updated on 05th of October 2024.
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It would be appreciated if any one hearing the published beacons please submit a report, the main list on page 1 is being up dated during today.
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Main listing has been updated on page-1 today.
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Main listing (header page) updates starting today, any changes you may have heard of please let me know.
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Main listing (on page one) up dated today.
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The main listing on page one has been updated.
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The main list on page one has been updated today.
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Great list! Thanks for the updates.
Regarding this statement: "I have noticed over the past three or so years a sharp decline in traffic being worked suggesting that this service and mode will be retired in the near future, so hear them while you can. JFE on Okinawa has not been heard for around four years which suggests that this station has already been decommissioned."
I watched as low frequency airport and marine NDBs slowly disappeared and all I have left are photos of all of the local beacons I visited. :-\
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The main list on page one has been updated today, Thursday 10th of July 2025.
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List updates for August 2025 have now been commenced, any additional information is most welcome.
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Observations for Aug/Sep have commenced on header page. :)
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Observations and noted for October 2025 have been undertaken on page one, the main header page with listings.
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Observations and updates for November 2025 have commenced on the main page.
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Has anyone heard the following:
8.431.0MHz CW TAH Turkey
12.654.0MHz CW TAH Turkey
I have not heard either for many days, although SVO in Greece has been heard on 8.424.0MHz CW, maybe TAH has been terminated?
Heard TAH? Then please post time and report in GMT, thank you. ;)
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As per the previous post above, still no sign of "TAH" on 8 or 12MHz CW, anyone hearing it?
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After an absence of around two years the following has returned:
16.695.0MHz CW XSG Shanghai, China 539 report at 0417z
The above has been added to the main list on page one. It has been heard nearly daily during the past week, although 16.880.0MHz XSQ at Guangzhou has not been heard for around two weeks.
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Has any station out there heard/logged "TAH" in Istanbul, Turkey on either 12.654.0MHz or 8.431.0MHz recently? Both have not been heard for nearly three months this way. Happy New Year 2026 to all. ;D
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Main list on page one has been updated, still no reception of "TAH" on 8 or 12MHz, maybe the transmitters are down for maintenance or service has been terminated?
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It appears that "TAH" Turkish Met Office transmissions on 8.431.0MHz and 12.654.0MHz have ceased, not heard for past four or five months.
Main list on page one updated, any new loggings or observations please submit.
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Main list on page one has been updated, anyone hearing "XSG" on 16.898.5MHz or 16.695.0MHz please post as both not hear so far in 2026.
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Updated information on "Japan Fisheries Radio" HF network CW station has been added to the main page. Relates to gradual decommissioning of CW stations on HF.
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List on page one has been updated.
SVO has reappeared on 12.603.5MHz heard around 0600z with ident marker "de SVO".
XSG has returned on 16.695.0MHz noted during late April into May 2026, however, XSG on 16.898.5MHz remains off air.
High noise on 6MHz means hearing XSG 0n 6.326.0 and XSQ on 6.329.0MHz very difficult, if you hear them please post with relevant details.
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Main data list on page one has been updated today.
Some additional loggings of JFR (Japan Fisheries Radio) HF traffic on 12 & 16MHz CW included.
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Chinese marker XSG on 4.215.0 CW had been signing as "de XSG" but noted the other night in July 2026 it had reverted back to the usual format and had dropped the "de" from the prefix.