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.

Pages: [1] 2 3 4 5 6 7 8 9 ... 2324
Subject / Started by Last post
47 Replies
54702 Views 		Last post July 04, 2025, 0350 UTC
by 123
2 Replies
11197 Views 		Last post December 30, 2024, 0839 UTC
by 26354
0 Replies
9338 Views 		Last post February 07, 2023, 0315 UTC
by Shortwave_Listener
1 Replies
18683 Views 		Last post July 19, 2022, 2354 UTC
by Ray Lalleu
0 Replies
52 Views 		Last post Today at 09:02
by Ray Lalleu
0 Replies
47 Views 		Last post Today at 08:44
by Ray Lalleu
0 Replies
66 Views 		Last post December 02, 2025, 2249 UTC
by kris
0 Replies
66 Views 		Last post December 02, 2025, 1921 UTC
by Ray Lalleu
0 Replies
57 Views 		Last post December 02, 2025, 1835 UTC
by Ray Lalleu
1 Replies
100 Views 		Last post December 02, 2025, 1821 UTC
by Ray Lalleu
0 Replies
50 Views 		Last post December 02, 2025, 1818 UTC
by Ray Lalleu
0 Replies
49 Views 		Last post December 02, 2025, 1714 UTC
by Alex BLR
0 Replies
64 Views 		Last post December 02, 2025, 1650 UTC
by Funkenblitz
0 Replies
58 Views 		Last post December 02, 2025, 1605 UTC
by Alex BLR
0 Replies
57 Views 		Last post December 02, 2025, 1414 UTC
by Ray Lalleu
1 Replies
79 Views 		Last post December 02, 2025, 1412 UTC
by TRI International
0 Replies
53 Views 		Last post December 02, 2025, 1336 UTC
by Ray Lalleu
0 Replies
46 Views 		Last post December 02, 2025, 1332 UTC
by Ray Lalleu
0 Replies
66 Views 		Last post December 02, 2025, 0902 UTC
by Ray Lalleu
0 Replies
49 Views 		Last post December 02, 2025, 0850 UTC
by Ray Lalleu
Pages: [1] 2 3 4 5 6 7 8 9 ... 2324

 

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