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
526 Views
Last post June 21, 2022, 1959 UTC
by Ray Lalleu
1 Replies
849 Views
Last post July 05, 2022, 2019 UTC
by Ray Lalleu
2 Replies
791 Views
Last post September 07, 2022, 1453 UTC
by Ray Lalleu
0 Replies
736 Views
Last post April 29, 2025, 1955 UTC
by europirate
0 Replies
390 Views
Last post February 07, 2023, 2021 UTC
by Ray Lalleu
0 Replies
394 Views
Last post December 13, 2022, 2000 UTC
by Ray Lalleu
1 Replies
450 Views
Last post December 07, 2022, 1756 UTC
by Ray Lalleu
0 Replies
400 Views
Last post January 17, 2023, 2000 UTC
by Ray Lalleu
0 Replies
389 Views
Last post January 24, 2023, 1954 UTC
by Ray Lalleu
0 Replies
393 Views
Last post January 03, 2023, 2039 UTC
by Ray Lalleu
0 Replies
407 Views
Last post February 21, 2023, 2056 UTC
by Ray Lalleu
1 Replies
488 Views
Last post November 22, 2022, 2117 UTC
by ukdxer
1 Replies
477 Views
Last post January 31, 2023, 2120 UTC
by Ray Lalleu
1 Replies
465 Views
Last post September 16, 2025, 2024 UTC
by Ray Lalleu
0 Replies
394 Views
Last post April 18, 2023, 2000 UTC
by Ray Lalleu
1 Replies
108 Views
Last post November 11, 2025, 2127 UTC
by Ray Lalleu
0 Replies
615 Views
Last post June 24, 2025, 2002 UTC
by europirate
0 Replies
530 Views
Last post May 30, 2023, 2014 UTC
by Ray Lalleu
1 Replies
283 Views
Last post September 23, 2025, 2048 UTC
by tomread
0 Replies
280 Views
Last post September 02, 2025, 2023 UTC
by europirate

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground T-Shirt
by MitchellTimeDesigns