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
176 Views
Last post May 17, 2025, 1844 UTC
by Ray Lalleu
0 Replies
176 Views
Last post April 03, 2025, 1345 UTC
by Ray Lalleu
0 Replies
176 Views
Last post October 22, 2023, 1716 UTC
by Ray Lalleu
1 Replies
176 Views
Last post July 03, 2025, 2012 UTC
by kris
0 Replies
176 Views
Last post December 06, 2024, 1443 UTC
by dxace1
0 Replies
176 Views
Last post July 02, 2023, 0908 UTC
by Ray Lalleu
0 Replies
176 Views
Last post December 16, 2023, 1438 UTC
by Ray Lalleu
0 Replies
176 Views
Last post December 18, 2024, 1436 UTC
by europirate
1 Replies
176 Views
Last post April 19, 2025, 2140 UTC
by kris
0 Replies
176 Views
Last post August 24, 2024, 1928 UTC
by Ray Lalleu
1 Replies
176 Views
Last post December 22, 2024, 1732 UTC
by Ray Lalleu
0 Replies
176 Views
Last post May 25, 2025, 0554 UTC
by Alex BLR
0 Replies
176 Views
Last post November 18, 2023, 0834 UTC
by Ray Lalleu
0 Replies
176 Views
Last post May 07, 2025, 1755 UTC
by Ray Lalleu
0 Replies
176 Views
Last post July 25, 2023, 1722 UTC
by Ray Lalleu
0 Replies
176 Views
Last post January 28, 2024, 0725 UTC
by Ray Lalleu
0 Replies
176 Views
Last post April 13, 2025, 1206 UTC
by europirate
0 Replies
176 Views
Last post July 17, 2023, 2012 UTC
by Ray Lalleu
0 Replies
176 Views
Last post August 19, 2023, 0311 UTC
by N2MLP
0 Replies
176 Views
Last post April 17, 2025, 1716 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