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
463 Views
Last post December 22, 2022, 0109 UTC
by kris
0 Replies
372 Views
Last post March 20, 2023, 2223 UTC
by Ray Lalleu
0 Replies
1436 Views
Last post March 18, 2019, 0605 UTC
by kris
0 Replies
783 Views
Last post February 06, 2022, 1041 UTC
by TRI International
0 Replies
116 Views
Last post November 12, 2025, 2021 UTC
by Erdel59
1 Replies
132 Views
Last post November 15, 2025, 2116 UTC
by europirate
1 Replies
400 Views
Last post December 11, 2023, 2041 UTC
by Misti-Radio
0 Replies
442 Views
Last post December 26, 2023, 1846 UTC
by TRI International
0 Replies
99 Views
Last post November 12, 2025, 2019 UTC
by Erdel59
0 Replies
538 Views
Last post August 26, 2023, 1259 UTC
by TRI International
0 Replies
356 Views
Last post December 30, 2023, 1249 UTC
by TRI International
0 Replies
488 Views
Last post December 25, 2023, 1246 UTC
by TRI International
0 Replies
344 Views
Last post December 30, 2023, 1144 UTC
by TRI International
0 Replies
766 Views
Last post April 01, 2022, 2031 UTC
by TRI International
0 Replies
524 Views
Last post July 22, 2023, 2346 UTC
by TRI International
0 Replies
357 Views
Last post April 29, 2024, 0816 UTC
by TRI International
0 Replies
356 Views
Last post November 19, 2024, 2149 UTC
by Ray Lalleu
0 Replies
459 Views
Last post December 30, 2023, 1303 UTC
by TRI International
0 Replies
349 Views
Last post June 29, 2024, 1638 UTC
by TRI International
0 Replies
733 Views
Last post April 20, 2025, 1629 UTC
by TRI International

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground Mug
HFUnderground Mug
by MitchellTimeDesigns