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
469 Views
Last post April 07, 2025, 0745 UTC
by Benoit LEVEQUE
0 Replies
233 Views
Last post March 31, 2024, 0755 UTC
by Ray Lalleu
1 Replies
328 Views
Last post May 28, 2023, 2125 UTC
by kris
0 Replies
471 Views
Last post August 01, 2020, 1402 UTC
by Ray Lalleu
1 Replies
652 Views
Last post June 13, 2018, 2100 UTC
by The Ether Hacker
0 Replies
262 Views
Last post July 07, 2025, 1919 UTC
by Ray Lalleu
0 Replies
221 Views
Last post February 05, 2023, 1059 UTC
by Ray Lalleu
0 Replies
411 Views
Last post March 12, 2021, 2121 UTC
by Ray Lalleu
3 Replies
1028 Views
Last post May 19, 2019, 2126 UTC
by kris
2 Replies
495 Views
Last post May 25, 2022, 2042 UTC
by europirate
0 Replies
405 Views
Last post September 14, 2020, 1857 UTC
by Ray Lalleu
0 Replies
573 Views
Last post August 20, 2018, 1945 UTC
by Ray Lalleu
1 Replies
458 Views
Last post September 25, 2024, 0851 UTC
by dave1965
0 Replies
319 Views
Last post November 10, 2023, 2105 UTC
by Ray Lalleu
1 Replies
427 Views
Last post September 22, 2022, 1830 UTC
by kris
1 Replies
542 Views
Last post November 18, 2021, 2207 UTC
by ChrisSmolinski
0 Replies
286 Views
Last post December 11, 2020, 1703 UTC
by Ray Lalleu
0 Replies
358 Views
Last post March 18, 2020, 1928 UTC
by Ray Lalleu
0 Replies
484 Views
Last post January 03, 2019, 1813 UTC
by Ray Lalleu
0 Replies
59 Views
Last post November 10, 2025, 1355 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