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
355 Views
Last post October 21, 2020, 2054 UTC
by Ray Lalleu
0 Replies
381 Views
Last post January 05, 2020, 0900 UTC
by Ray Lalleu
0 Replies
554 Views
Last post October 14, 2018, 2017 UTC
by Ray Lalleu
0 Replies
407 Views
Last post April 16, 2020, 1830 UTC
by Ray Lalleu
1 Replies
245 Views
Last post March 22, 2025, 1737 UTC
by kris
0 Replies
458 Views
Last post September 10, 2019, 1644 UTC
by Ray Lalleu
0 Replies
453 Views
Last post December 09, 2018, 1329 UTC
by Ray Lalleu
1 Replies
173 Views
Last post October 26, 2025, 1613 UTC
by StephanJK
0 Replies
214 Views
Last post December 09, 2024, 1055 UTC
by Ray Lalleu
2 Replies
619 Views
Last post February 05, 2022, 2129 UTC
by Ray Lalleu
0 Replies
452 Views
Last post February 23, 2021, 1616 UTC
by Ray Lalleu
1 Replies
533 Views
Last post May 02, 2019, 2052 UTC
by kris
0 Replies
206 Views
Last post July 02, 2023, 1524 UTC
by Ray Lalleu
3 Replies
713 Views
Last post May 08, 2022, 1958 UTC
by kris
0 Replies
630 Views
Last post July 23, 2018, 1708 UTC
by Ray Lalleu
0 Replies
174 Views
Last post August 07, 2025, 2102 UTC
by Ray Lalleu
1 Replies
621 Views
Last post November 01, 2021, 1807 UTC
by kris
0 Replies
241 Views
Last post January 26, 2025, 0845 UTC
by Ray Lalleu
0 Replies
286 Views
Last post March 07, 2023, 1741 UTC
by Ray Lalleu
0 Replies
434 Views
Last post April 06, 2021, 0932 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 T-Shirt
by MitchellTimeDesigns