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
383 Views
Last post October 27, 2024, 1012 UTC
by Ray Lalleu
0 Replies
271 Views
Last post October 19, 2024, 2049 UTC
by Ray Lalleu
5 Replies
669 Views
Last post October 28, 2024, 0421 UTC
by Professor
1 Replies
401 Views
Last post September 27, 2024, 1923 UTC
by n2avh
2 Replies
396 Views
Last post September 28, 2024, 1914 UTC
by kris
3 Replies
577 Views
Last post October 05, 2024, 2125 UTC
by kris
0 Replies
1212 Views
Last post December 18, 2013, 0836 UTC
by FRM Marco CZ Boder
2 Replies
607 Views
Last post September 26, 2021, 1647 UTC
by dxace1
5 Replies
720 Views
Last post October 24, 2024, 1846 UTC
by Fisherman
1 Replies
375 Views
Last post December 07, 2024, 0845 UTC
by Ray Lalleu
1 Replies
381 Views
Last post March 07, 2025, 1725 UTC
by Ray Lalleu
0 Replies
217 Views
Last post December 31, 2024, 1330 UTC
by Ray Lalleu
1 Replies
257 Views
Last post July 05, 2025, 1826 UTC
by RadioLongWire
2 Replies
403 Views
Last post October 30, 2024, 1804 UTC
by dxace1
3 Replies
527 Views
Last post December 30, 2024, 1617 UTC
by dxace1
2 Replies
383 Views
Last post July 05, 2025, 1749 UTC
by 26354
0 Replies
215 Views
Last post January 19, 2025, 1010 UTC
by Ray Lalleu
1 Replies
199 Views
Last post August 09, 2025, 1847 UTC
by DBullock
0 Replies
357 Views
Last post October 22, 2024, 1842 UTC
by Ray Lalleu
0 Replies
250 Views
Last post October 25, 2024, 1632 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 T-Shirt
by MitchellTimeDesigns