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
1 Replies
379 Views
Last post May 23, 2021, 1910 UTC
by Bali_Frank
0 Replies
287 Views
Last post July 05, 2020, 1258 UTC
by Ray Lalleu
1 Replies
798 Views
Last post April 27, 2018, 2309 UTC
by Skipmuck
0 Replies
356 Views
Last post June 09, 2025, 0739 UTC
by Ray Lalleu
2 Replies
273 Views
Last post August 29, 2023, 1859 UTC
by kobalts
3 Replies
703 Views
Last post December 26, 2019, 1458 UTC
by Ray Lalleu
0 Replies
207 Views
Last post December 30, 2022, 1449 UTC
by Ray Lalleu
1 Replies
457 Views
Last post February 14, 2021, 1006 UTC
by TRI International
0 Replies
497 Views
Last post April 23, 2019, 0003 UTC
by Ray Lalleu
1 Replies
310 Views
Last post April 19, 2024, 2103 UTC
by Benoit LEVEQUE
0 Replies
297 Views
Last post August 21, 2020, 1941 UTC
by Ray Lalleu
0 Replies
93 Views
Last post July 28, 2025, 2032 UTC
by Ray Lalleu
0 Replies
300 Views
Last post August 13, 2022, 1824 UTC
by Ray Lalleu
0 Replies
326 Views
Last post November 17, 2020, 1604 UTC
by Ray Lalleu
2 Replies
656 Views
Last post November 24, 2018, 2034 UTC
by kris
0 Replies
178 Views
Last post January 12, 2025, 0750 UTC
by Ray Lalleu
0 Replies
591 Views
Last post January 21, 2024, 1143 UTC
by Ray Lalleu
0 Replies
241 Views
Last post February 25, 2023, 2127 UTC
by Ray Lalleu
0 Replies
487 Views
Last post January 26, 2022, 1402 UTC
by Ray Lalleu
0 Replies
392 Views
Last post March 28, 2021, 1019 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 T-Shirt
by MitchellTimeDesigns