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
269 Views
Last post May 16, 2025, 1729 UTC
by Alex BLR
2 Replies
504 Views
Last post May 16, 2025, 1718 UTC
by dxace1
0 Replies
381 Views
Last post May 16, 2025, 1649 UTC
by dxace1
1 Replies
278 Views
Last post May 16, 2025, 1643 UTC
by Ray Lalleu
1 Replies
275 Views
Last post May 16, 2025, 1017 UTC
by Alex BLR
1 Replies
304 Views
Last post May 16, 2025, 0734 UTC
by Ray Lalleu
0 Replies
217 Views
Last post May 15, 2025, 2012 UTC
by Ray Lalleu
1 Replies
281 Views
Last post May 15, 2025, 1942 UTC
by Alex BLR
1 Replies
325 Views
Last post May 15, 2025, 1900 UTC
by Alex BLR
1 Replies
297 Views
Last post May 15, 2025, 1756 UTC
by Ray Lalleu
1 Replies
292 Views
Last post May 15, 2025, 1748 UTC
by Ray Lalleu
2 Replies
1667 Views
Last post May 15, 2025, 1639 UTC
by Pascal
1 Replies
348 Views
Last post May 15, 2025, 1543 UTC
by Alex BLR
0 Replies
1066 Views
Last post May 15, 2025, 0127 UTC
by Shortwave_Listener
2 Replies
496 Views
Last post May 14, 2025, 2128 UTC
by kris
0 Replies
193 Views
Last post May 14, 2025, 2128 UTC
by Ray Lalleu
3 Replies
803 Views
Last post May 14, 2025, 2052 UTC
by ukdxer
3 Replies
422 Views
Last post May 14, 2025, 2049 UTC
by kris
0 Replies
157 Views
Last post May 14, 2025, 1959 UTC
by Ray Lalleu
0 Replies
179 Views
Last post May 14, 2025, 1836 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 Garden Flag
by MitchellTimeDesigns