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
1 Replies
367 Views
Last post December 31, 2023, 1659 UTC
by Ray Lalleu
0 Replies
169 Views
Last post November 10, 2024, 0820 UTC
by Ray Lalleu
0 Replies
493 Views
Last post January 08, 2020, 1810 UTC
by Ray Lalleu
0 Replies
287 Views
Last post October 23, 2020, 1823 UTC
by Ray Lalleu
2 Replies
579 Views
Last post September 24, 2021, 2022 UTC
by Grey Fox
0 Replies
349 Views
Last post July 19, 2022, 1724 UTC
by Ray Lalleu
0 Replies
423 Views
Last post July 15, 2019, 1526 UTC
by Ray Lalleu
2 Replies
538 Views
Last post July 17, 2020, 2019 UTC
by ukdxer
0 Replies
402 Views
Last post April 25, 2021, 0759 UTC
by Ray Lalleu
1 Replies
389 Views
Last post April 03, 2022, 1546 UTC
by Bali_Frank
2 Replies
301 Views
Last post April 07, 2023, 1743 UTC
by kobalts
0 Replies
555 Views
Last post February 22, 2025, 1624 UTC
by Ray Lalleu
0 Replies
391 Views
Last post March 17, 2019, 0750 UTC
by Ray Lalleu
1 Replies
467 Views
Last post January 17, 2021, 1709 UTC
by kris
0 Replies
142 Views
Last post September 02, 2025, 0912 UTC
by Ray Lalleu
1 Replies
473 Views
Last post August 10, 2021, 1851 UTC
by kris
4 Replies
765 Views
Last post June 05, 2022, 0948 UTC
by Dxcan
3 Replies
541 Views
Last post August 06, 2023, 0111 UTC
by fox558
0 Replies
295 Views
Last post June 08, 2024, 0715 UTC
by Ray Lalleu
2 Replies
424 Views
Last post May 24, 2025, 0947 UTC
by Benoit LEVEQUE

 

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