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 permissable in your locale.


No New Posts Shortwave Pirate

Loggings of North American Pirate Stations

Moderators: Beerus Maximus, Zane, Sealord, Rafman, Kilokat7, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, ByteBORG, JoeFLIPS, PirateSWL

99519 Posts
19791 Topics

Last post by Pigmeat
in Re: Radio Humperdoo 4090...
on Today at 14:57

Child Boards: Broadcast Announcements
No New Posts European Pirate

Loggings of Europirates

Moderators: Beerus Maximus, Ray Lalleu, DimBulb, Chris Lobdell, Skipmuck, JoeFLIPS

12317 Posts
5659 Topics

Last post by kris
in Re: Unid 3935 AM 1810 ut...
on Today at 19:19

No New Posts Latin American Pirate

Loggings of pirate radio stations from Central and South America

901 Posts
478 Topics

Last post by Daniel Wyllyans
in Rádio Pig 30 , 9300 AM 1...
on Today at 17:39

No New Posts MW Free Radio

AM/MW Free Radio Station Loggings

416 Posts
160 Topics

Last post by SV1XV
in Mousikos Episkeptis (Gre...
on Today at 17:30

No New Posts FM Free Radio

FM Free Radio Station Loggings

312 Posts
71 Topics

Last post by Stretchyman
in Re: FM Pirates in the Ne...
on January 15, 2019, 1806 UTC

No New Posts HF Beacons

Loggings of the various unlicensed shortwave beacon stations

Moderators: Token, Kilokat7, Teotwaki

5991 Posts
1162 Topics

Last post by sat_dxer
in Re: Russian MX beacons l...
on February 17, 2019, 1520 UTC

No New Posts 22 Meter Band

Loggings of HiFER Part 15 Beacons

Moderator: tesla

554 Posts
121 Topics

Last post by K4JYS
in Re: WAS 13564.85 1703 UT...
on Today at 15:25

No New Posts Spy Numbers

Loggings of Spy Numbers Stations

Moderator: Token

2996 Posts
1223 Topics

Last post by MDK2
in Re: HM01 log, February 2...
on Today at 17:45

No New Posts Shortwave Broadcast

Loggings of SWBC Stations

Moderators: skeezix, Skipmuck

7051 Posts
3823 Topics

Last post by Ray Lalleu
in R. Kahuzi tent. 6210.2 A...
on Today at 17:00

No New Posts Clandestine Stations

Worldwide Loggings of and information about Clandestine Stations

Moderator: fpeconsultant

965 Posts
432 Topics

Last post by fpeconsultant
in Reborn clandestine Sowt ...
on Today at 16:39

No New Posts Longwave Loggings

Loggings of Longwave Stations

Moderators: skeezix, jFarley, Chanter

1109 Posts
218 Topics

Last post by pinto vortando
in Re: Winter 2018 NDB Logs
on February 17, 2019, 1037 UTC

No New Posts DGPS

DGPS related messages - loggings and software

Moderator: skeezix

2361 Posts
1534 Topics

Last post by ChrisSmolinski
in DGPS Logs 17-18 Feb 2019
on Today at 16:54

No New Posts MW Loggings

Loggings of MW Stations

Moderators: skeezix, Kilokat7

1574 Posts
589 Topics

Last post by Daniel Wyllyans
in Radio Rebelde 530 AM 054...
on Today at 08:02

No New Posts Utility

Loggings of Utility Stations

Moderator: Beerus Maximus

2856 Posts
1095 Topics

Last post by Josh
in Re: 11175 USB
on Today at 19:07

No New Posts 10/11 meters

Loggings of licensed and unlicensed stations on 10 and 11 meters

Moderators: thechoat, R4002

1159 Posts
477 Topics

Last post by R4002
in 27255 kHz 27.255 MHz FSK...
on Today at 17:00

No New Posts FM DX Loggings

Loggings of FM DX Stations

98 Posts
35 Topics

Last post by Ct Yankee
in Season's Greetings WHUS ...
on February 16, 2019, 0025 UTC

No New Posts TV DX Loggings

Logs of TV DX stations - screencaps welcome

45 Posts
5 Topics

Last post by MDK2
in Re: A6 negative offset,...
on September 07, 2018, 1508 UTC

No New Posts Satellite, Radiosondes and Other VHF/UHF Signals

Receiving and tracking radiosondes (weather balloons), satellites, and other VHF/UHF signals

642 Posts
71 Topics

Last post by Josh
in Re: UHF mil air
on Today at 18:56

No New Posts Other

Loggings of Other Stations

2785 Posts
944 Topics

Last post by c8bitglitch
in Re: ???? 7200 LSB 1930 U...
on Today at 15:52

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

1246 Posts
896 Topics

Last post by R4002
in 17330 kHz USB Spanish La...
on Today at 16:57

No New Posts HF Mystery Signals

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

Moderator: Token

642 Posts
128 Topics

Last post by Nomadiq
in 6974.4 CW
on February 17, 2019, 2319 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

169 Posts
57 Topics

Last post by Thegreatescape
in Re: UNI 9265 KHZ
on February 09, 2019, 2359 UTC

Technical Topics

No New Posts Equipment

Radios and Antenna Discussions

Moderator: corq

3958 Posts
545 Topics

Last post by jmlx
in Re: Everything you wante...
on February 17, 2019, 1421 UTC

No New Posts Propagation

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

141 Posts
39 Topics

Last post by legis225
in Re: Tracking The Solar D...
on January 26, 2019, 1640 UTC

No New Posts SDR - Software Defined Radio

Software Defined Radio discussions

862 Posts
173 Topics

Last post by KaySeeks
in Re: KiwiSDR SNR Ranking
on February 06, 2019, 2122 UTC

No New Posts The RF Workbench

RF construction projects

Moderator: ff

1357 Posts
140 Topics

Last post by Teotwaki
in Re: Solar SLA charging a...
on February 15, 2019, 2339 UTC

No New Posts Software

Radio Related Software

414 Posts
121 Topics

Last post by Strange Beacons
in Re: Transmitting WEFAX i...
on January 18, 2019, 2333 UTC

General Category

No New Posts General Radio Discussion

Miscellaneous radio related topics.

13198 Posts
3457 Topics

Last post by Josh
in Re: Minnesota to decommi...
on Today at 19:03

No New Posts QSLs Received

Post pictures and other details of QSLs and eQSLs here

Moderator: Sealord

6694 Posts
2678 Topics

Last post by Daniel Wyllyans
in Rede Nacional de Rádios ...
on Today at 18:51

No New Posts Pirate Radio History

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

Moderator: PirateSWL

22 Posts
9 Topics

Last post by Pigmeat
in Re: NPR audio article on...
on January 03, 2019, 1205 UTC

No New Posts For Sale / Wanted

Radio related items for sale, or wanted

182 Posts
58 Topics

Last post by Σ
in Re: FS: Book - Russia in...
on February 10, 2019, 1249 UTC

No New Posts Huh?

The DX is under g0pher's table

4659 Posts
931 Topics

Last post by Pigmeat
in Al, I finally saw that v...
on Today at 15:06

No New Posts Bacon, BBQ, Beef, And More

Tasty LCHF/Paleo/Keto foods for the radio enthusiast

453 Posts
79 Topics

Last post by Josh
in Re: Reversal of Type 2 D...
on January 12, 2019, 2130 UTC

  • No New Posts
  • Redirect Board

HFU HF Underground - Info Center

Forum Stats Forum Stats

178394 Posts in 47535 Topics by 3244 Members. Latest Member: W5PLA
Latest Post: "Re: Unid 3935 AM 1810 ut..." ( Today at 19:19 )
View the most recent posts on the forum.
[More Stats]

Users Online Users Online

173 Guests, 6 Users

Users active in past 15 minutes:
kris, Brian, Ray Lalleu, Matt285, Josh, dxace1

Most Online Today: 214. Most Online Ever: 363 (October 25, 2018, 1540 UTC)