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
612 Views
Last post June 10, 2025, 1827 UTC
by dave1965
2 Replies
545 Views
Last post June 24, 2022, 1609 UTC
by Shortwave_Listener
4 Replies
924 Views
Last post April 01, 2022, 1947 UTC
by kris
3 Replies
908 Views
Last post May 04, 2018, 2037 UTC
by Oliver
0 Replies
419 Views
Last post December 17, 2021, 1924 UTC
by F-10255
1 Replies
219 Views
Last post November 17, 2024, 1436 UTC
by m3ozp1
4 Replies
820 Views
Last post May 13, 2019, 2009 UTC
by texas1dxer
2 Replies
689 Views
Last post October 13, 2021, 1933 UTC
by kris
1 Replies
386 Views
Last post December 06, 2020, 1119 UTC
by FOX
2 Replies
543 Views
Last post April 03, 2021, 1619 UTC
by dxace1
0 Replies
422 Views
Last post October 12, 2019, 1346 UTC
by Ray Lalleu
0 Replies
204 Views
Last post January 29, 2025, 1610 UTC
by Ray Lalleu
1 Replies
439 Views
Last post August 22, 2019, 1631 UTC
by Ray Lalleu
0 Replies
476 Views
Last post July 15, 2019, 1341 UTC
by dandan22
1 Replies
596 Views
Last post July 08, 2019, 1448 UTC
by Ray Lalleu
2 Replies
588 Views
Last post October 01, 2019, 1410 UTC
by Ray Lalleu
5 Replies
979 Views
Last post October 28, 2018, 1726 UTC
by dxace1
0 Replies
1263 Views
Last post December 15, 2013, 0331 UTC
by Evil Elvis
2 Replies
652 Views
Last post April 13, 2022, 1629 UTC
by RainBrandy
0 Replies
435 Views
Last post May 27, 2021, 2251 UTC
by kris

 

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