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
279 Views
Last post September 27, 2022, 2029 UTC
by Ray Lalleu
0 Replies
332 Views
Last post October 04, 2023, 1716 UTC
by Ray Lalleu
1 Replies
777 Views
Last post June 20, 2018, 2012 UTC
by kris
0 Replies
450 Views
Last post October 04, 2019, 2006 UTC
by Ray Lalleu
0 Replies
431 Views
Last post June 26, 2021, 0740 UTC
by Ray Lalleu
0 Replies
309 Views
Last post April 04, 2024, 1931 UTC
by Ray Lalleu
1 Replies
386 Views
Last post April 12, 2025, 0758 UTC
by Benoit LEVEQUE
0 Replies
288 Views
Last post January 07, 2024, 1737 UTC
by Ray Lalleu
0 Replies
128 Views
Last post October 12, 2025, 0613 UTC
by Ray Lalleu
0 Replies
613 Views
Last post November 05, 2018, 1120 UTC
by Ray Lalleu
0 Replies
365 Views
Last post November 07, 2020, 1427 UTC
by Ray Lalleu
0 Replies
279 Views
Last post August 11, 2024, 1627 UTC
by Ray Lalleu
0 Replies
419 Views
Last post May 12, 2021, 1801 UTC
by Ray Lalleu
0 Replies
387 Views
Last post April 13, 2023, 1901 UTC
by Ray Lalleu
0 Replies
222 Views
Last post March 01, 2025, 1740 UTC
by Ray Lalleu
0 Replies
443 Views
Last post April 11, 2019, 1938 UTC
by Ray Lalleu
2 Replies
571 Views
Last post March 31, 2020, 2159 UTC
by Skipmuck
0 Replies
361 Views
Last post February 04, 2021, 1705 UTC
by Ray Lalleu
0 Replies
326 Views
Last post December 14, 2022, 0914 UTC
by Ray Lalleu
1 Replies
700 Views
Last post September 16, 2018, 1305 UTC
by Oliver

 

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