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
344 Views
Last post January 03, 2023, 2039 UTC
by Ray Lalleu
0 Replies
340 Views
Last post February 21, 2023, 2056 UTC
by Ray Lalleu
1 Replies
447 Views
Last post November 22, 2022, 2117 UTC
by ukdxer
1 Replies
413 Views
Last post January 31, 2023, 2120 UTC
by Ray Lalleu
1 Replies
145 Views
Last post September 16, 2025, 2024 UTC
by Ray Lalleu
0 Replies
360 Views
Last post April 18, 2023, 2000 UTC
by Ray Lalleu
0 Replies
527 Views
Last post June 24, 2025, 2002 UTC
by europirate
0 Replies
478 Views
Last post May 30, 2023, 2014 UTC
by Ray Lalleu
0 Replies
102 Views
Last post September 02, 2025, 2023 UTC
by europirate
0 Replies
294 Views
Last post April 16, 2024, 2030 UTC
by europirate
0 Replies
312 Views
Last post March 21, 2023, 2034 UTC
by Ray Lalleu
0 Replies
630 Views
Last post June 10, 2025, 2035 UTC
by europirate
0 Replies
321 Views
Last post December 17, 2024, 2053 UTC
by europirate
1 Replies
379 Views
Last post November 19, 2024, 2150 UTC
by Ray Lalleu
0 Replies
267 Views
Last post February 27, 2024, 2130 UTC
by europirate
0 Replies
570 Views
Last post October 24, 2023, 1848 UTC
by europirate
0 Replies
485 Views
Last post October 31, 2023, 2012 UTC
by europirate
0 Replies
506 Views
Last post June 03, 2025, 2050 UTC
by europirate
1 Replies
603 Views
Last post October 18, 2022, 2033 UTC
by Ray Lalleu
1 Replies
551 Views
Last post August 23, 2022, 2016 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