We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

Loggings

No New Posts North American Shortwave Pirate

Loggings of North American Pirate Stations

Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, refmo, ChrisLobdell, Skipmuck, PirateSWL, Shortwave_Listener

223002 Posts
36144 Topics

Last post by ChrisSmolinski
in Re: Songs of Protest Rad...
on Today at 11:11

Child Boards: Broadcast Announcements
No New Posts European Pirates and Private Stations

Loggings of Europirates as well as the licensed low power / hobby European shortwave broadcast stations

Moderators: Beerus Maximus, Ray Lalleu, DimBulb, ChrisLobdell, Skipmuck, Shortwave_Listener

87756 Posts
44734 Topics

Last post by Ray Lalleu
in Dublin's ABC 6279.8 AM ...
on Today at 10:16

No New Posts Latin American Pirate

Loggings of pirate radio stations from Central and South America

Moderators: Ray Lalleu, Skipmuck

2673 Posts
1266 Topics

Last post by Shortwave_Listener
in Radio Casa 5900 AM 0215 ...
on September 07, 2025, 0215 UTC

No New Posts North American MW Pirate Radio

North American AM/MW Free Radio Station Loggings

Moderators: Ray Lalleu, Skipmuck, Shortwave_Listener

2008 Posts
796 Topics

Last post by ChrisSmolinski
in UNID 1620 AM 2226 UTC 6 ...
on September 06, 2025, 1958 UTC

No New Posts European MW Pirate Radio

European AM/MW Free Radio Station Loggings

Moderators: Ray Lalleu, Skipmuck, Shortwave_Listener

4077 Posts
3534 Topics

Last post by europirate
in UNID (NL) 1665 AM 2132 U...
on September 10, 2025, 2133 UTC

No New Posts FM Free Radio

FM Free Radio Station Loggings

469 Posts
122 Topics

Last post by ChrisSmolinski
in Re: UNID 87.7 FM 24 HR ...
on August 30, 2025, 1717 UTC

No New Posts HF Beacons

Loggings of the various unlicensed shortwave beacon stations

Moderators: Token, Kilokat7, Teotwaki

9638 Posts
1385 Topics

Last post by GI0WLW
in 451khz
on September 07, 2025, 2111 UTC

No New Posts Fishing Drift Net Beacons

CW Beacons used to identify and locate drift nets used by fishermen

365 Posts
90 Topics

Last post by Looking-Glass
in Re: DNB logs for Decembe...
on December 14, 2024, 1130 UTC

No New Posts 22 Meter Band HiFER Beacons

Loggings of HiFER Part 15 Beacons

Moderator: tesla

1281 Posts
375 Topics

Last post by N9QIW
in QIW On Air Today
on July 27, 2025, 1717 UTC

No New Posts Spy Numbers

Loggings of Spy Numbers Stations

Moderator: Token

6675 Posts
1738 Topics

Last post by Antenna101
in The Pip - The Squeaky Wh...
on Today at 08:27

No New Posts Shortwave Broadcast

Loggings of SWBC Stations

Moderators: skeezix, Ray Lalleu, Skipmuck

15351 Posts
8533 Topics

Last post by SWLQSL
in Radio Tarma Peru 4775 Kh...
on September 10, 2025, 1133 UTC

No New Posts Clandestine Stations

Worldwide Loggings of and information about Clandestine Stations

Moderator: fpeconsultant

1565 Posts
717 Topics

Last post by Ct Yankee
in Radio Zaman Bidari (Hope...
on August 07, 2025, 1834 UTC

No New Posts Longwave Loggings

Loggings of Longwave Stations

Moderators: skeezix, jFarley, Chanter

1836 Posts
420 Topics

Last post by europirate
in BBC Radio 4 - 198kHz - c...
on August 13, 2025, 1909 UTC

No New Posts DGPS

DGPS related messages - loggings and software

Moderator: skeezix

5563 Posts
4130 Topics

Last post by skeezix
in DGPS Logs August 12, 202...
on August 13, 2025, 1552 UTC

No New Posts MW Loggings

Loggings of MW Stations

Moderators: skeezix, Kilokat7

3593 Posts
1188 Topics

Last post by ChrisSmolinski
in Re: AGREM 1670 kHz TIS W...
on September 09, 2025, 2121 UTC

No New Posts Utility

Loggings of Utility Stations

Moderator: Beerus Maximus

7716 Posts
2254 Topics

Last post by East Troy Don
in Re: HFGCS General Log
on Today at 01:13

No New Posts WEFAX and SSTV

Loggings of WEFAX and non pirate SSTV transmissions. Images welcome!

Moderator: Skipmuck

439 Posts
171 Topics

Last post by myteaquinn
in 7200 LSB SSTV 08 AUG 202...
on August 03, 2025, 0224 UTC

No New Posts 10/11 meters

Loggings of licensed and unlicensed stations on 10 and 11 meters

Moderators: thechoat, R4002

3246 Posts
1380 Topics

Last post by N2MLP
in KOA 25950 FM 1431 UTC ...
on September 07, 2025, 1432 UTC

No New Posts FM DX Loggings

Loggings of FM DX Stations

144 Posts
59 Topics

Last post by ThaDood
in KKOK 95.7FM, MN, 7/4/202...
on July 04, 2025, 1559 UTC

No New Posts TV DX Loggings

Logs of TV DX stations - screencaps welcome

62 Posts
8 Topics

Last post by europirate
in Re: TV DXing from the tr...
on July 18, 2024, 1407 UTC

No New Posts VHF/UHF Logs, including satellites and radiosondes

Post anything above 30 MHz, other than Ham, FM and TV, here

1622 Posts
244 Topics

Last post by Claim Jumper
in 44.581 megahertz data?
on September 10, 2025, 0413 UTC

No New Posts Other

Loggings of Other Stations

4112 Posts
1464 Topics

Last post by Gr0undPlan3
in RUSSIAN PROPAGANDA 7120 ...
on August 31, 2025, 0244 UTC

No New Posts Peskies

Fishermen? Drug runners? Or just folks with radios talking in an unlicensed fashion within unconventional bands? The HFU decides

Moderators: R4002, aquabat

2119 Posts
1342 Topics

Last post by Shortwave_Listener
in Italian Peskie Jammer 69...
on September 01, 2025, 1746 UTC

No New Posts HF Mystery Signals

Unidentified modes - Hearing a digital mode you need help identifying? This is the place

Moderator: Token

1350 Posts
329 Topics

Last post by Antenna101
in Re: Unknown "Hypnotoad" ...
on September 01, 2025, 2004 UTC

No New Posts ID and Translation Requests

Got a station you can't ID, or need a translation? Post a link to a recording here

377 Posts
135 Topics

Last post by nitroengine
in Re: UNID using EAS tones...
on September 10, 2025, 2042 UTC

Technical Topics

No New Posts Equipment

Radios and Antenna Discussions

Moderator: corq

7586 Posts
976 Topics

Last post by europirate
in Re: IC-7300 as a SWL rec...
on September 05, 2025, 1238 UTC

No New Posts Part 15 AM and FM Station Operation

Discussions related to legal Part 15 AM and FM station operation

530 Posts
105 Topics

Last post by tybee
in Re: Hardware vs Software...
on September 10, 2025, 2100 UTC

No New Posts Propagation

Much like the weather, everybody complains about propagation, but nobody does anything about it.

472 Posts
120 Topics

Last post by ThaDood
in Re: East Coast Heatwave ...
on September 10, 2025, 1713 UTC

No New Posts SDR - Software Defined Radio

Software Defined Radio discussions

1623 Posts
323 Topics

Last post by nitroengine
in Re: KiwiSDR : why clicks...
on September 03, 2025, 0654 UTC

No New Posts The RF Workbench

RF construction projects

Moderator: ff

2622 Posts
294 Topics

Last post by Tonsku79
in Re: U-LULU (Updated LULU...
on September 03, 2025, 1833 UTC

No New Posts Software

Radio Related Software

706 Posts
213 Topics

Last post by europirate
in Re: The people stuck usi...
on September 05, 2025, 1236 UTC

General Category

No New Posts General Radio Discussion

Miscellaneous radio related topics.

17543 Posts
4416 Topics

Last post by ChrisSmolinski
in Two Boston area AM pirat...
on September 10, 2025, 2017 UTC

No New Posts Amateur Radio

Amateur / Ham Radio related discussions

1199 Posts
262 Topics

Last post by ThaDood
in ARRL September VHF Sweep...
on September 03, 2025, 1605 UTC

No New Posts QSLs Received

Post pictures and other details of QSLs and eQSLs here

Moderators: Sealord, PirateSWL

14615 Posts
5783 Topics

Last post by Ct Yankee
in Re: Songs of Protest Rad...
on Today at 10:54

No New Posts Pirate Radio History

A place to post historical articles and QSLs, links to audio files, etc.

Moderator: PirateSWL

225 Posts
51 Topics

Last post by ThaDood
in 35 Years of Radio Wolf I...
on August 28, 2025, 1720 UTC

No New Posts For Sale / Wanted / Barter

Radio related items for sale, or wanted, or trade/barter - clear out your old junk and get new junk!

453 Posts
137 Topics

Last post by HulkSmash
in For Sale: SDRplay RSPdx
on June 29, 2025, 1433 UTC

No New Posts Huh?

The DX is under g0pher's table

6662 Posts
1411 Topics

Last post by NQC
in Re: 10 Years ago Midnigh...
on August 18, 2025, 1515 UTC

No New Posts Group W Bench

Misfit posts

223 Posts
107 Topics

Last post by SkyLimit21
in Help Identifying MINDREA...
on July 29, 2025, 0252 UTC

No New Posts Weather

Everybody complains about the weather, but nobody does anything about it

200 Posts
51 Topics

Last post by ThaDood
in Re: Pereids Meteor Showe...
on August 15, 2025, 1707 UTC

No New Posts Bacon, BBQ, Beef, And More

Tasty LCHF/Paleo/Keto foods for the radio enthusiast

994 Posts
204 Topics

Last post by Molvania Poacher
in Re: Why yes, I like chic...
on April 20, 2025, 1516 UTC

  • No New Posts
  • Redirect Board

HFU HF Underground - Info Center

Forum Stats Forum Stats

444395 Posts in 128008 Topics by 7236 Members. Latest Member: big cat
Latest Post: "Re: Songs of Protest Rad..." ( Today at 11:11 )
View the most recent posts on the forum.
[More Stats]

Users Online Users Online

1490 Guests, 1 User

Users active in past 15 minutes:
jzehm

Most Online Today: 1908. Most Online Ever: 20498 (August 15, 2025, 0510 UTC)

HFUnderground Mug
HFUnderground Mug
by MitchellTimeDesigns