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
2 Replies
1667 Views
Last post May 15, 2025, 1639 UTC
by Pascal
3 Replies
470 Views
Last post March 14, 2025, 1647 UTC
by Ray Lalleu
4 Replies
1361 Views
Last post April 30, 2025, 1744 UTC
by Pascal
3 Replies
298 Views
Last post July 14, 2025, 1749 UTC
by Pascal
3 Replies
222 Views
Last post July 18, 2025, 1914 UTC
by Pascal
2 Replies
974 Views
Last post March 17, 2025, 1750 UTC
by Ray Lalleu
1 Replies
508 Views
Last post October 20, 2018, 2314 UTC
by Ray Lalleu
3 Replies
383 Views
Last post April 22, 2023, 0855 UTC
by kris
0 Replies
234 Views
Last post April 27, 2023, 1841 UTC
by Ray Lalleu
3 Replies
406 Views
Last post April 26, 2023, 1630 UTC
by kris
2 Replies
291 Views
Last post April 22, 2023, 1524 UTC
by Misti-Radio
1 Replies
455 Views
Last post August 13, 2021, 1042 UTC
by Bali_Frank
0 Replies
332 Views
Last post September 20, 2020, 0800 UTC
by Ray Lalleu
1 Replies
445 Views
Last post September 16, 2020, 1710 UTC
by dxace1
3 Replies
1171 Views
Last post December 04, 2021, 1902 UTC
by kris
0 Replies
285 Views
Last post May 06, 2023, 1639 UTC
by kris
1 Replies
1281 Views
Last post October 05, 2014, 1422 UTC
by refmo
0 Replies
988 Views
Last post October 19, 2014, 1827 UTC
by Skipmuck
0 Replies
1059 Views
Last post May 09, 2015, 1519 UTC
by JoeFLIPS
2 Replies
2277 Views
Last post February 22, 2015, 1355 UTC
by Skipmuck

 

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