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
284 Views
Last post March 11, 2025, 1614 UTC
by Ethernut
4 Replies
286 Views
Last post May 24, 2025, 1837 UTC
by DBullock
1 Replies
189 Views
Last post May 23, 2025, 0845 UTC
by Ray Lalleu
2 Replies
336 Views
Last post February 21, 2025, 2144 UTC
by Ray Lalleu
1 Replies
193 Views
Last post May 21, 2025, 0658 UTC
by Benoit LEVEQUE
0 Replies
127 Views
Last post April 14, 2025, 1329 UTC
by Alex BLR
1 Replies
242 Views
Last post February 17, 2025, 1400 UTC
by TRI International
1 Replies
166 Views
Last post May 18, 2025, 2043 UTC
by Ray Lalleu
1 Replies
144 Views
Last post May 18, 2025, 0942 UTC
by Ray Lalleu
1 Replies
275 Views
Last post May 28, 2025, 1820 UTC
by Ray Lalleu
0 Replies
273 Views
Last post May 17, 2025, 1206 UTC
by Alex BLR
2 Replies
224 Views
Last post May 04, 2025, 1411 UTC
by Benoit LEVEQUE
4 Replies
495 Views
Last post May 26, 2025, 2008 UTC
by europirate
0 Replies
201 Views
Last post February 26, 2025, 1702 UTC
by Alex BLR
1 Replies
378 Views
Last post March 11, 2025, 1546 UTC
by Ray Lalleu
0 Replies
121 Views
Last post May 24, 2025, 1744 UTC
by Alex BLR
3 Replies
304 Views
Last post March 08, 2025, 1815 UTC
by Ray Lalleu
0 Replies
157 Views
Last post April 17, 2025, 1318 UTC
by Alex BLR
1 Replies
337 Views
Last post February 19, 2025, 1529 UTC
by Pascal
3 Replies
327 Views
Last post March 04, 2025, 1438 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