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
262 Views
Last post January 28, 2023, 1706 UTC
by Ray Lalleu
0 Replies
360 Views
Last post January 01, 2022, 2231 UTC
by Ray Lalleu
0 Replies
384 Views
Last post March 06, 2021, 1005 UTC
by Ray Lalleu
2 Replies
523 Views
Last post April 24, 2020, 1927 UTC
by dxace1
2 Replies
638 Views
Last post May 11, 2019, 1951 UTC
by kris
1 Replies
443 Views
Last post March 31, 2025, 1752 UTC
by Alaska_CZ
0 Replies
451 Views
Last post May 18, 2022, 1647 UTC
by Ray Lalleu
0 Replies
399 Views
Last post June 12, 2021, 1904 UTC
by Ray Lalleu
8 Replies
1273 Views
Last post September 07, 2020, 2305 UTC
by oly1959
0 Replies
379 Views
Last post September 22, 2019, 0827 UTC
by Ray Lalleu
0 Replies
495 Views
Last post August 12, 2018, 1619 UTC
by Ray Lalleu
2 Replies
396 Views
Last post September 12, 2022, 1906 UTC
by Misti-Radio
0 Replies
496 Views
Last post December 26, 2018, 1421 UTC
by Ray Lalleu
0 Replies
548 Views
Last post February 04, 2024, 1709 UTC
by Ray Lalleu
1 Replies
463 Views
Last post February 17, 2022, 1055 UTC
by FOX
0 Replies
415 Views
Last post May 26, 2020, 2220 UTC
by Ray Lalleu
0 Replies
192 Views
Last post May 07, 2025, 1755 UTC
by Ray Lalleu
0 Replies
176 Views
Last post July 17, 2023, 1850 UTC
by Ray Lalleu
0 Replies
421 Views
Last post November 07, 2019, 1634 UTC
by Ray Lalleu
0 Replies
124 Views
Last post August 16, 2025, 1632 UTC
by Ray Lalleu

 

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