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
298 Views
Last post October 11, 2024, 1655 UTC
by europirate
0 Replies
290 Views
Last post October 12, 2022, 0833 UTC
by Ray Lalleu
0 Replies
326 Views
Last post December 24, 2020, 1548 UTC
by Ray Lalleu
0 Replies
574 Views
Last post February 01, 2019, 1735 UTC
by Ray Lalleu
0 Replies
219 Views
Last post February 24, 2024, 0950 UTC
by Ray Lalleu
3 Replies
592 Views
Last post March 11, 2022, 1821 UTC
by kris
1 Replies
311 Views
Last post June 18, 2020, 1951 UTC
by kris
0 Replies
82 Views
Last post May 25, 2025, 1842 UTC
by Ray Lalleu
1 Replies
335 Views
Last post June 11, 2024, 2300 UTC
by kris
0 Replies
139 Views
Last post August 10, 2023, 1725 UTC
by Ray Lalleu
0 Replies
275 Views
Last post June 08, 2022, 1749 UTC
by Ray Lalleu
2 Replies
508 Views
Last post August 25, 2021, 1716 UTC
by kris
0 Replies
265 Views
Last post September 26, 2020, 0840 UTC
by Ray Lalleu
0 Replies
341 Views
Last post December 07, 2019, 0742 UTC
by Ray Lalleu
2 Replies
645 Views
Last post September 10, 2018, 2115 UTC
by ChrisSmolinski
0 Replies
148 Views
Last post November 26, 2023, 0746 UTC
by Ray Lalleu
1 Replies
424 Views
Last post December 04, 2021, 1135 UTC
by Bali_Frank
0 Replies
537 Views
Last post March 29, 2020, 0636 UTC
by Ray Lalleu
1 Replies
472 Views
Last post August 10, 2019, 2150 UTC
by ChrisSmolinski
3 Replies
532 Views
Last post August 08, 2024, 1922 UTC
by kris

 

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