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
273 Views
Last post June 05, 2023, 2215 UTC
by Ray Lalleu
1 Replies
516 Views
Last post June 28, 2021, 1600 UTC
by Bali_Frank
0 Replies
405 Views
Last post October 07, 2019, 1715 UTC
by Ray Lalleu
1 Replies
640 Views
Last post June 24, 2018, 2036 UTC
by kris
0 Replies
220 Views
Last post July 16, 2025, 2002 UTC
by Ray Lalleu
1 Replies
322 Views
Last post October 04, 2024, 2107 UTC
by kris
1 Replies
225 Views
Last post October 08, 2023, 0823 UTC
by FOX
3 Replies
655 Views
Last post October 15, 2021, 1946 UTC
by Bali_Frank
0 Replies
308 Views
Last post December 19, 2020, 0809 UTC
by Ray Lalleu
0 Replies
350 Views
Last post February 08, 2020, 1428 UTC
by Ray Lalleu
0 Replies
485 Views
Last post January 18, 2019, 1610 UTC
by Ray Lalleu
1 Replies
211 Views
Last post January 01, 2025, 1043 UTC
by RainBrandy
0 Replies
250 Views
Last post February 13, 2023, 1743 UTC
by Ray Lalleu
2 Replies
570 Views
Last post March 04, 2022, 2133 UTC
by kris
0 Replies
397 Views
Last post March 20, 2021, 0929 UTC
by Ray Lalleu
0 Replies
368 Views
Last post May 30, 2019, 1643 UTC
by Ray Lalleu
0 Replies
364 Views
Last post September 20, 2020, 1212 UTC
by Ray Lalleu
1 Replies
735 Views
Last post August 31, 2018, 2004 UTC
by kris
0 Replies
258 Views
Last post November 17, 2023, 2129 UTC
by Ray Lalleu
0 Replies
459 Views
Last post March 22, 2020, 1959 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 Garden Flag
by MitchellTimeDesigns