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 ... 2182
Subject / Started by Last post
47 Replies
37117 Views 		Last post July 04, 2025, 0350 UTC
by 123
2 Replies
6102 Views 		Last post December 30, 2024, 0839 UTC
by 26354
0 Replies
6775 Views 		Last post February 07, 2023, 0315 UTC
by Shortwave_Listener
1 Replies
15036 Views 		Last post July 19, 2022, 2354 UTC
by Ray Lalleu
0 Replies
42 Views 		Last post Today at 20:55
by Ray Lalleu
0 Replies
39 Views 		Last post Today at 20:52
by Ray Lalleu
1 Replies
125 Views 		Last post Today at 20:28
by KISS AM
2 Replies
121 Views 		Last post Today at 20:24
by kris
0 Replies
76 Views 		Last post Today at 19:50
by Ray Lalleu
0 Replies
40 Views 		Last post Today at 19:19
by Ray Lalleu
0 Replies
54 Views 		Last post Today at 18:24
by Ray Lalleu
0 Replies
56 Views 		Last post Today at 17:28
by Ray Lalleu
0 Replies
57 Views 		Last post Today at 16:57
by Ray Lalleu
1 Replies
95 Views 		Last post Today at 15:36
by achim
1 Replies
124 Views 		Last post Today at 11:13
by kris
0 Replies
60 Views 		Last post July 06, 2025, 2150 UTC
by Ray Lalleu
0 Replies
64 Views 		Last post July 06, 2025, 2132 UTC
by Ray Lalleu
0 Replies
45 Views 		Last post July 06, 2025, 2112 UTC
by Ray Lalleu
1 Replies
64 Views 		Last post July 06, 2025, 2036 UTC
by Ray Lalleu
3 Replies
152 Views 		Last post July 06, 2025, 2016 UTC
by Ray Lalleu
Pages: [1] 2 3 4 5 6 7 8 9 ... 2182

 

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