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
338 Views
Last post February 11, 2020, 1456 UTC
by Ray Lalleu
2 Replies
338 Views
Last post September 06, 2025, 2125 UTC
by kris
2 Replies
338 Views
Last post July 31, 2025, 2023 UTC
by kris
1 Replies
338 Views
Last post July 08, 2025, 2014 UTC
by europirate
0 Replies
338 Views
Last post May 30, 2025, 2253 UTC
by Ray Lalleu
0 Replies
338 Views
Last post May 28, 2025, 1824 UTC
by Ray Lalleu
1 Replies
338 Views
Last post May 03, 2025, 1929 UTC
by Alex BLR
0 Replies
338 Views
Last post April 12, 2025, 0934 UTC
by m3ozp1
1 Replies
338 Views
Last post March 16, 2025, 2024 UTC
by Ray Lalleu
0 Replies
338 Views
Last post March 06, 2025, 1959 UTC
by kris
2 Replies
338 Views
Last post February 11, 2025, 2100 UTC
by europirate
0 Replies
338 Views
Last post January 29, 2025, 0003 UTC
by kris
1 Replies
338 Views
Last post December 21, 2024, 1319 UTC
by Ray Lalleu
2 Replies
338 Views
Last post November 24, 2024, 1024 UTC
by SRjeren
2 Replies
338 Views
Last post November 04, 2024, 0040 UTC
by Ray Lalleu
0 Replies
338 Views
Last post October 18, 2024, 1557 UTC
by prldx
1 Replies
338 Views
Last post October 17, 2024, 1932 UTC
by EagleWave
1 Replies
338 Views
Last post October 11, 2024, 1656 UTC
by europirate
0 Replies
338 Views
Last post September 06, 2024, 0229 UTC
by n2avh
1 Replies
338 Views
Last post August 31, 2024, 1827 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