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
0 Replies
100 Views
Last post July 12, 2025, 2001 UTC
by Ray Lalleu
1 Replies
128 Views
Last post July 12, 2025, 1930 UTC
by Ray Lalleu
1 Replies
124 Views
Last post July 12, 2025, 1926 UTC
by Alex BLR
1 Replies
146 Views
Last post July 12, 2025, 1914 UTC
by Ray Lalleu
2 Replies
189 Views
Last post July 12, 2025, 1910 UTC
by Robertas
1 Replies
136 Views
Last post July 12, 2025, 1851 UTC
by Robertas
1 Replies
128 Views
Last post July 12, 2025, 1842 UTC
by Ray Lalleu
3 Replies
257 Views
Last post July 12, 2025, 1750 UTC
by Robertas
0 Replies
100 Views
Last post July 12, 2025, 1709 UTC
by Ray Lalleu
0 Replies
93 Views
Last post July 12, 2025, 1630 UTC
by Ray Lalleu
2 Replies
176 Views
Last post July 12, 2025, 1610 UTC
by dxace1
1 Replies
120 Views
Last post July 12, 2025, 1550 UTC
by Ray Lalleu
1 Replies
105 Views
Last post July 12, 2025, 1545 UTC
by Ray Lalleu
1 Replies
156 Views
Last post July 12, 2025, 1522 UTC
by Ray Lalleu
1 Replies
138 Views
Last post July 12, 2025, 1451 UTC
by Ray Lalleu
3 Replies
259 Views
Last post July 12, 2025, 1331 UTC
by europirate
0 Replies
111 Views
Last post July 12, 2025, 1105 UTC
by TRI International
1 Replies
169 Views
Last post July 12, 2025, 0812 UTC
by dave1965
1 Replies
153 Views
Last post July 12, 2025, 0800 UTC
by europirate
1 Replies
283 Views
Last post July 11, 2025, 2230 UTC
by KISS AM

 

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