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
471 Views
Last post August 07, 2022, 1854 UTC
by TRI International
1 Replies
471 Views
Last post June 19, 2022, 2253 UTC
by kris
2 Replies
471 Views
Last post May 14, 2022, 1838 UTC
by Shortwave_Listener
1 Replies
471 Views
Last post May 01, 2022, 1639 UTC
by Ray Lalleu
1 Replies
471 Views
Last post April 19, 2022, 2140 UTC
by Ray Lalleu
1 Replies
471 Views
Last post April 18, 2022, 1608 UTC
by Bali_Frank
1 Replies
471 Views
Last post April 13, 2022, 1714 UTC
by Bali_Frank
0 Replies
471 Views
Last post March 08, 2022, 1800 UTC
by Ray Lalleu
1 Replies
471 Views
Last post February 27, 2022, 1108 UTC
by europirate
0 Replies
471 Views
Last post February 20, 2022, 1738 UTC
by Ray Lalleu
1 Replies
471 Views
Last post January 15, 2022, 1751 UTC
by Bali_Frank
1 Replies
471 Views
Last post January 08, 2022, 1001 UTC
by dave1965
1 Replies
471 Views
Last post December 21, 2021, 1911 UTC
by F-10255
2 Replies
471 Views
Last post June 16, 2025, 1806 UTC
by achim
6 Replies
471 Views
Last post March 09, 2025, 1347 UTC
by Benoit LEVEQUE
0 Replies
471 Views
Last post March 05, 2025, 2122 UTC
by europirate
2 Replies
471 Views
Last post February 19, 2025, 1843 UTC
by Ray Lalleu
2 Replies
471 Views
Last post January 20, 2024, 1719 UTC
by Ray Lalleu
0 Replies
471 Views
Last post March 26, 2020, 0654 UTC
by Ray Lalleu
2 Replies
471 Views
Last post March 15, 2020, 1903 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 T-Shirt
by MitchellTimeDesigns