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
218 Views
Last post November 11, 2024, 1711 UTC
by Ray Lalleu
1 Replies
218 Views
Last post June 26, 2025, 1713 UTC
by achim
0 Replies
218 Views
Last post August 06, 2023, 0745 UTC
by Ray Lalleu
0 Replies
218 Views
Last post August 06, 2023, 1858 UTC
by Ray Lalleu
0 Replies
218 Views
Last post February 26, 2023, 0847 UTC
by Ray Lalleu
0 Replies
218 Views
Last post June 04, 2023, 1745 UTC
by Ray Lalleu
0 Replies
218 Views
Last post April 24, 2025, 1549 UTC
by Ray Lalleu
0 Replies
218 Views
Last post June 04, 2023, 1030 UTC
by Ray Lalleu
0 Replies
218 Views
Last post April 24, 2024, 2011 UTC
by Ray Lalleu
0 Replies
218 Views
Last post March 18, 2023, 1140 UTC
by Ray Lalleu
0 Replies
218 Views
Last post January 17, 2025, 1155 UTC
by Ray Lalleu
0 Replies
218 Views
Last post October 05, 2024, 1502 UTC
by Fisherman
2 Replies
218 Views
Last post October 15, 2023, 0852 UTC
by Antonia
0 Replies
218 Views
Last post August 20, 2024, 2117 UTC
by Ray Lalleu
0 Replies
218 Views
Last post December 15, 2024, 2357 UTC
by N2MLP
0 Replies
218 Views
Last post July 06, 2024, 1143 UTC
by europirate
0 Replies
218 Views
Last post June 24, 2023, 1909 UTC
by Ray Lalleu
0 Replies
218 Views
Last post February 12, 2023, 2153 UTC
by Ray Lalleu
1 Replies
218 Views
Last post June 17, 2023, 0751 UTC
by Ray Lalleu
0 Replies
218 Views
Last post February 05, 2023, 1633 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 Garden Flag
by MitchellTimeDesigns