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
261 Views
Last post June 01, 2023, 2007 UTC
by Ray Lalleu
1 Replies
261 Views
Last post March 26, 2023, 1444 UTC
by kris
1 Replies
261 Views
Last post February 11, 2025, 1954 UTC
by Pascal
0 Replies
261 Views
Last post April 25, 2023, 2242 UTC
by Shortwave_Listener
0 Replies
261 Views
Last post July 07, 2024, 1324 UTC
by Fisherman
1 Replies
261 Views
Last post January 20, 2023, 1637 UTC
by Misti-Radio
0 Replies
261 Views
Last post August 06, 2024, 1918 UTC
by Ray Lalleu
0 Replies
261 Views
Last post March 01, 2024, 1714 UTC
by Ray Lalleu
1 Replies
261 Views
Last post March 03, 2024, 1210 UTC
by FOX
0 Replies
261 Views
Last post June 14, 2024, 1700 UTC
by Ray Lalleu
0 Replies
261 Views
Last post February 12, 2024, 1610 UTC
by kris
1 Replies
261 Views
Last post March 19, 2023, 0012 UTC
by Ray Lalleu
0 Replies
261 Views
Last post October 04, 2024, 1357 UTC
by Ray Lalleu
1 Replies
261 Views
Last post April 06, 2025, 0827 UTC
by Benoit LEVEQUE
1 Replies
261 Views
Last post September 27, 2024, 2140 UTC
by Ray Lalleu
0 Replies
261 Views
Last post January 18, 2023, 1846 UTC
by FOX
0 Replies
261 Views
Last post July 03, 2020, 2215 UTC
by Ray Lalleu
1 Replies
261 Views
Last post April 27, 2023, 1808 UTC
by Ray Lalleu
0 Replies
261 Views
Last post April 07, 2024, 1614 UTC
by kris
0 Replies
261 Views
Last post January 30, 2024, 1639 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