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
152 Views
Last post May 18, 2025, 1017 UTC
by Ray Lalleu
0 Replies
152 Views
Last post January 12, 2025, 0747 UTC
by Ray Lalleu
0 Replies
152 Views
Last post November 26, 2023, 1615 UTC
by Ray Lalleu
0 Replies
152 Views
Last post December 24, 2024, 0840 UTC
by Ray Lalleu
0 Replies
152 Views
Last post January 11, 2025, 1059 UTC
by Ray Lalleu
0 Replies
152 Views
Last post May 18, 2025, 1035 UTC
by Ray Lalleu
0 Replies
152 Views
Last post May 25, 2025, 0505 UTC
by Squonky
0 Replies
152 Views
Last post July 11, 2025, 1918 UTC
by Ray Lalleu
0 Replies
152 Views
Last post November 16, 2024, 0829 UTC
by Ray Lalleu
0 Replies
152 Views
Last post December 25, 2024, 1656 UTC
by Ray Lalleu
0 Replies
152 Views
Last post June 21, 2025, 2016 UTC
by Ray Lalleu
0 Replies
152 Views
Last post December 07, 2024, 1634 UTC
by Ray Lalleu
2 Replies
152 Views
Last post July 27, 2025, 0737 UTC
by europirate
0 Replies
152 Views
Last post December 07, 2024, 1416 UTC
by Ray Lalleu
0 Replies
152 Views
Last post December 31, 2024, 1051 UTC
by Ray Lalleu
0 Replies
152 Views
Last post January 25, 2025, 1616 UTC
by Ray Lalleu
0 Replies
152 Views
Last post September 22, 2024, 1002 UTC
by Ray Lalleu
0 Replies
152 Views
Last post February 15, 2025, 1806 UTC
by Ray Lalleu
0 Replies
152 Views
Last post December 26, 2024, 0945 UTC
by Ray Lalleu
0 Replies
152 Views
Last post December 15, 2024, 1604 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