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
246 Views
Last post December 15, 2024, 1116 UTC
by europirate
1 Replies
246 Views
Last post August 24, 2024, 2010 UTC
by Aerhoo
1 Replies
246 Views
Last post May 05, 2023, 2019 UTC
by kris
1 Replies
246 Views
Last post December 23, 2024, 1400 UTC
by europirate
0 Replies
246 Views
Last post May 12, 2024, 0740 UTC
by Ray Lalleu
1 Replies
246 Views
Last post May 05, 2025, 1858 UTC
by Ray Lalleu
1 Replies
246 Views
Last post July 27, 2024, 1658 UTC
by Ray Lalleu
0 Replies
246 Views
Last post January 02, 2023, 0957 UTC
by europirate
1 Replies
246 Views
Last post March 16, 2024, 1748 UTC
by Ray Lalleu
0 Replies
246 Views
Last post May 01, 2024, 0803 UTC
by Ray Lalleu
0 Replies
246 Views
Last post December 08, 2023, 2157 UTC
by Ray Lalleu
0 Replies
246 Views
Last post April 29, 2024, 1604 UTC
by TRI International
0 Replies
246 Views
Last post January 13, 2023, 2138 UTC
by Ray Lalleu
0 Replies
246 Views
Last post November 12, 2022, 1157 UTC
by kris
0 Replies
246 Views
Last post September 18, 2022, 0010 UTC
by Ray Lalleu
0 Replies
246 Views
Last post November 04, 2022, 0932 UTC
by Ray Lalleu
3 Replies
246 Views
Last post February 24, 2025, 0855 UTC
by Benoit LEVEQUE
1 Replies
246 Views
Last post July 23, 2024, 1930 UTC
by Ray Lalleu
2 Replies
246 Views
Last post January 07, 2024, 0728 UTC
by kris
0 Replies
246 Views
Last post September 17, 2022, 1431 UTC
by Misti-Radio

 

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