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
427 Views
Last post August 23, 2022, 2244 UTC
by Shortwave_Listener
0 Replies
341 Views
Last post August 22, 2022, 1821 UTC
by Ray Lalleu
7 Replies
2642 Views
Last post July 27, 2014, 1016 UTC
by Humat
1 Replies
491 Views
Last post June 10, 2020, 1054 UTC
by FOX
1 Replies
629 Views
Last post October 20, 2018, 1645 UTC
by Ray Lalleu
3 Replies
1506 Views
Last post August 28, 2016, 2253 UTC
by JoeFLIPS
0 Replies
1444 Views
Last post February 16, 2014, 1827 UTC
by cendoubleu
1 Replies
1002 Views
Last post October 25, 2015, 1945 UTC
by Oliver
1 Replies
542 Views
Last post August 25, 2020, 1859 UTC
by Curt
1 Replies
622 Views
Last post June 16, 2018, 2001 UTC
by kris
1 Replies
743 Views
Last post May 27, 2018, 1141 UTC
by Brian
0 Replies
438 Views
Last post January 22, 2022, 1022 UTC
by TRI International
2 Replies
529 Views
Last post November 22, 2023, 0842 UTC
by kris
3 Replies
534 Views
Last post December 22, 2022, 1135 UTC
by kris
0 Replies
283 Views
Last post December 24, 2022, 0831 UTC
by dave1965
1 Replies
361 Views
Last post January 24, 2023, 1250 UTC
by dave1965
2 Replies
310 Views
Last post February 16, 2023, 1936 UTC
by TRI International
1 Replies
324 Views
Last post February 16, 2023, 1638 UTC
by Ray Lalleu
1 Replies
244 Views
Last post March 19, 2023, 0941 UTC
by Robertas
1 Replies
284 Views
Last post December 26, 2022, 0857 UTC
by dave1965

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns