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
502 Views
Last post October 28, 2021, 1659 UTC
by Ethernut
0 Replies
270 Views
Last post January 15, 2025, 1849 UTC
by Ray Lalleu
0 Replies
352 Views
Last post February 27, 2023, 1723 UTC
by Ray Lalleu
1 Replies
485 Views
Last post January 29, 2022, 1452 UTC
by Bali_Frank
0 Replies
495 Views
Last post March 31, 2021, 1039 UTC
by Ray Lalleu
1 Replies
466 Views
Last post May 13, 2020, 1833 UTC
by kris
0 Replies
478 Views
Last post June 15, 2019, 1107 UTC
by Ray Lalleu
0 Replies
269 Views
Last post June 24, 2023, 1909 UTC
by Ray Lalleu
1 Replies
594 Views
Last post July 11, 2021, 1656 UTC
by Bali_Frank
1 Replies
457 Views
Last post October 20, 2019, 1503 UTC
by Ray Lalleu
0 Replies
207 Views
Last post October 13, 2024, 1758 UTC
by Ray Lalleu
0 Replies
403 Views
Last post December 27, 2020, 1349 UTC
by Ray Lalleu
0 Replies
539 Views
Last post February 08, 2019, 1943 UTC
by Ray Lalleu
0 Replies
251 Views
Last post February 25, 2024, 2017 UTC
by Ray Lalleu
1 Replies
745 Views
Last post March 13, 2022, 1939 UTC
by Bali_Frank
0 Replies
370 Views
Last post June 21, 2020, 2338 UTC
by Ray Lalleu
0 Replies
346 Views
Last post May 29, 2025, 2101 UTC
by Ray Lalleu
0 Replies
240 Views
Last post August 14, 2023, 1933 UTC
by Ray Lalleu
0 Replies
427 Views
Last post September 29, 2020, 1818 UTC
by Ray Lalleu
0 Replies
388 Views
Last post December 12, 2019, 1621 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