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
349 Views
Last post March 31, 2023, 2000 UTC
by Ray Lalleu
0 Replies
365 Views
Last post April 05, 2023, 1958 UTC
by Ray Lalleu
0 Replies
416 Views
Last post February 10, 2023, 1955 UTC
by Ray Lalleu
0 Replies
369 Views
Last post April 18, 2023, 1944 UTC
by Ray Lalleu
0 Replies
349 Views
Last post April 07, 2023, 1925 UTC
by Ray Lalleu
0 Replies
400 Views
Last post April 12, 2023, 1921 UTC
by Ray Lalleu
1 Replies
796 Views
Last post July 11, 2025, 1708 UTC
by ukdxer
1 Replies
651 Views
Last post May 31, 2022, 2012 UTC
by Ray Lalleu
0 Replies
475 Views
Last post July 30, 2023, 0932 UTC
by TRI International
0 Replies
436 Views
Last post October 14, 2023, 2015 UTC
by FOX
0 Replies
326 Views
Last post January 29, 2024, 2145 UTC
by europirate
0 Replies
310 Views
Last post May 05, 2024, 0950 UTC
by TRI International
0 Replies
137 Views
Last post August 09, 2025, 2118 UTC
by europirate
1 Replies
435 Views
Last post January 12, 2024, 0005 UTC
by Ray Lalleu
0 Replies
1432 Views
Last post October 30, 2020, 2139 UTC
by ddasty
0 Replies
479 Views
Last post October 17, 2022, 1649 UTC
by Ray Lalleu
2 Replies
564 Views
Last post September 01, 2023, 2110 UTC
by FOX
1 Replies
762 Views
Last post February 08, 2022, 2004 UTC
by Mikael Sjoberg
0 Replies
523 Views
Last post May 13, 2022, 0724 UTC
by Misti-Radio
0 Replies
287 Views
Last post October 01, 2024, 2239 UTC
by FOX

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground T-Shirt
by MitchellTimeDesigns