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
495 Views
Last post June 27, 2021, 1728 UTC
by Ray Lalleu
0 Replies
340 Views
Last post July 19, 2020, 0840 UTC
by Ray Lalleu
0 Replies
412 Views
Last post September 28, 2019, 0752 UTC
by Ray Lalleu
1 Replies
288 Views
Last post January 28, 2023, 1837 UTC
by Bali_Frank
1 Replies
303 Views
Last post January 06, 2024, 1850 UTC
by Ray Lalleu
0 Replies
496 Views
Last post July 18, 2021, 1730 UTC
by Bali_Frank
3 Replies
707 Views
Last post June 26, 2021, 2115 UTC
by kris
1 Replies
344 Views
Last post May 26, 2024, 1306 UTC
by Benoit LEVEQUE
2 Replies
305 Views
Last post July 28, 2024, 1727 UTC
by Ray Lalleu
3 Replies
401 Views
Last post August 18, 2024, 1714 UTC
by europirate
1 Replies
244 Views
Last post March 10, 2024, 1027 UTC
by europirate
0 Replies
289 Views
Last post March 24, 2024, 1708 UTC
by Fisherman
1 Replies
251 Views
Last post September 01, 2024, 1723 UTC
by Ray Lalleu
0 Replies
236 Views
Last post August 31, 2024, 1644 UTC
by Fisherman
0 Replies
460 Views
Last post July 31, 2021, 1934 UTC
by Bali_Frank
0 Replies
295 Views
Last post October 01, 2022, 1830 UTC
by Shortwave_Listener
1 Replies
305 Views
Last post November 12, 2022, 1818 UTC
by kris
0 Replies
236 Views
Last post January 14, 2023, 1749 UTC
by Ray Lalleu
1 Replies
316 Views
Last post September 23, 2023, 1807 UTC
by Ray Lalleu
0 Replies
392 Views
Last post May 28, 2022, 1729 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