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
524 Views
Last post December 03, 2022, 2115 UTC
by Shortwave_Listener
0 Replies
524 Views
Last post November 12, 2022, 1951 UTC
by kris
0 Replies
524 Views
Last post May 23, 2022, 1745 UTC
by Misti-Radio
0 Replies
524 Views
Last post May 13, 2022, 2006 UTC
by Ray Lalleu
0 Replies
525 Views
Last post June 02, 2025, 1946 UTC
by europirate
0 Replies
526 Views
Last post December 10, 2023, 1711 UTC
by europirate
0 Replies
526 Views
Last post May 18, 2025, 2033 UTC
by europirate
0 Replies
526 Views
Last post May 09, 2022, 2154 UTC
by Ray Lalleu
0 Replies
527 Views
Last post October 29, 2023, 1717 UTC
by europirate
1 Replies
527 Views
Last post December 26, 2024, 2204 UTC
by ralf_bender
0 Replies
527 Views
Last post July 07, 2022, 1958 UTC
by Ray Lalleu
0 Replies
528 Views
Last post January 19, 2023, 2014 UTC
by Ray Lalleu
0 Replies
528 Views
Last post September 28, 2022, 0019 UTC
by kris
0 Replies
528 Views
Last post September 15, 2023, 1902 UTC
by FOX
0 Replies
528 Views
Last post May 31, 2025, 1954 UTC
by europirate
0 Replies
528 Views
Last post July 29, 2022, 2115 UTC
by kris
0 Replies
529 Views
Last post July 29, 2022, 2008 UTC
by europirate
0 Replies
529 Views
Last post February 07, 2022, 1928 UTC
by Ray Lalleu
0 Replies
530 Views
Last post October 24, 2023, 1840 UTC
by europirate
0 Replies
530 Views
Last post June 24, 2025, 2002 UTC
by europirate

 

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