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.

Subject / Started by Last post
0 Replies
360 Views
Last post September 25, 2021, 1405 UTC
by Ray Lalleu
1 Replies
424 Views
Last post July 08, 2022, 1728 UTC
by Shortwave_Listener
3 Replies
414 Views
Last post September 15, 2023, 1831 UTC
by Ray Lalleu
0 Replies
184 Views
Last post July 21, 2024, 0855 UTC
by Ray Lalleu
0 Replies
258 Views
Last post July 18, 2020, 0943 UTC
by Ray Lalleu
1 Replies
260 Views
Last post March 18, 2024, 1703 UTC
by dxace1
1 Replies
1005 Views
Last post March 18, 2019, 2216 UTC
by kris
0 Replies
264 Views
Last post January 19, 2021, 1443 UTC
by Ray Lalleu
1 Replies
285 Views
Last post November 17, 2022, 1546 UTC
by kobalts
3 Replies
610 Views
Last post November 17, 2019, 1437 UTC
by Brian
0 Replies
371 Views
Last post August 12, 2021, 1721 UTC
by Ray Lalleu
0 Replies
182 Views
Last post July 27, 2023, 2019 UTC
by Ray Lalleu
1 Replies
554 Views
Last post July 17, 2019, 0703 UTC
by Jari Finland
0 Replies
284 Views
Last post June 04, 2020, 1949 UTC
by Ray Lalleu
0 Replies
338 Views
Last post February 27, 2022, 0829 UTC
by Ray Lalleu
0 Replies
231 Views
Last post March 26, 2023, 1447 UTC
by Ray Lalleu
0 Replies
126 Views
Last post February 14, 2025, 1817 UTC
by Ray Lalleu
0 Replies
522 Views
Last post January 05, 2019, 1504 UTC
by Ray Lalleu
1 Replies
374 Views
Last post March 20, 2020, 2128 UTC
by Ray Lalleu
0 Replies
258 Views
Last post December 12, 2020, 1001 UTC
by Ray Lalleu

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns