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
3 Replies
300 Views
Last post May 06, 2025, 2106 UTC
by TRI International
1 Replies
291 Views
Last post March 02, 2025, 1504 UTC
by Ray Lalleu
2 Replies
239 Views
Last post April 25, 2025, 2010 UTC
by europirate
1 Replies
234 Views
Last post March 14, 2025, 1643 UTC
by Ray Lalleu
2 Replies
272 Views
Last post February 26, 2025, 1818 UTC
by Funkenblitz
1 Replies
254 Views
Last post May 16, 2025, 0734 UTC
by Ray Lalleu
1 Replies
286 Views
Last post March 11, 2025, 1734 UTC
by Ray Lalleu
2 Replies
321 Views
Last post May 10, 2025, 0709 UTC
by Alex BLR
0 Replies
127 Views
Last post April 27, 2025, 1422 UTC
by Alex BLR
1 Replies
242 Views
Last post February 17, 2025, 1446 UTC
by TRI International
2 Replies
369 Views
Last post May 30, 2025, 1236 UTC
by Benoit LEVEQUE
1 Replies
268 Views
Last post March 02, 2025, 1418 UTC
by Ray Lalleu
2 Replies
355 Views
Last post May 28, 2025, 1905 UTC
by Alex BLR
2 Replies
204 Views
Last post May 17, 2025, 1643 UTC
by Ray Lalleu
1 Replies
292 Views
Last post February 26, 2025, 1716 UTC
by Ray Lalleu
2 Replies
365 Views
Last post March 11, 2025, 1719 UTC
by Ray Lalleu
4 Replies
297 Views
Last post May 24, 2025, 1837 UTC
by DBullock
1 Replies
192 Views
Last post May 23, 2025, 0845 UTC
by Ray Lalleu
2 Replies
338 Views
Last post February 21, 2025, 2144 UTC
by Ray Lalleu
1 Replies
207 Views
Last post May 21, 2025, 0658 UTC
by Benoit LEVEQUE

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground House Flag
by MitchellTimeDesigns