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
300 Views
Last post May 09, 2025, 1810 UTC
by dxace1
4 Replies
613 Views
Last post September 06, 2024, 2049 UTC
by Fisherman
1 Replies
414 Views
Last post August 16, 2024, 1934 UTC
by Fisherman
0 Replies
296 Views
Last post May 16, 2025, 1813 UTC
by Alex BLR
0 Replies
1094 Views
Last post November 29, 2024, 1638 UTC
by dxace1
1 Replies
279 Views
Last post December 28, 2024, 2256 UTC
by Ray Lalleu
0 Replies
247 Views
Last post April 12, 2025, 1553 UTC
by kris
0 Replies
926 Views
Last post June 22, 2016, 1935 UTC
by JoeFLIPS
1 Replies
385 Views
Last post August 18, 2020, 1913 UTC
by kris
3 Replies
507 Views
Last post November 15, 2024, 2010 UTC
by prldx
1 Replies
300 Views
Last post April 28, 2023, 1900 UTC
by kris
3 Replies
448 Views
Last post September 03, 2023, 2153 UTC
by RainBrandy
2 Replies
331 Views
Last post November 11, 2023, 1547 UTC
by kris
0 Replies
231 Views
Last post November 12, 2023, 0849 UTC
by Ray Lalleu
4 Replies
876 Views
Last post October 12, 2023, 1823 UTC
by dxace1
0 Replies
321 Views
Last post March 19, 2024, 1828 UTC
by Ray Lalleu
1 Replies
256 Views
Last post February 14, 2025, 1701 UTC
by Alex BLR
1 Replies
358 Views
Last post December 27, 2023, 1426 UTC
by Ray Lalleu
2 Replies
234 Views
Last post July 19, 2025, 1902 UTC
by kris
2 Replies
585 Views
Last post June 16, 2025, 2006 UTC
by RainBrandy

 

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