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
230 Views
Last post January 03, 2023, 1532 UTC
by Ray Lalleu
0 Replies
230 Views
Last post January 30, 2024, 1545 UTC
by Ray Lalleu
0 Replies
230 Views
Last post March 26, 2024, 1857 UTC
by Ray Lalleu
0 Replies
230 Views
Last post March 03, 2023, 1308 UTC
by FOX
0 Replies
230 Views
Last post March 07, 2025, 2222 UTC
by Ct Yankee
0 Replies
230 Views
Last post December 04, 2024, 2040 UTC
by Ct Yankee
0 Replies
230 Views
Last post March 31, 2023, 1940 UTC
by Ray Lalleu
0 Replies
230 Views
Last post March 12, 2025, 1738 UTC
by Ray Lalleu
1 Replies
230 Views
Last post July 17, 2023, 0014 UTC
by N2MLP
0 Replies
230 Views
Last post October 14, 2023, 1329 UTC
by Ray Lalleu
1 Replies
230 Views
Last post May 28, 2023, 1448 UTC
by FOX
1 Replies
230 Views
Last post December 09, 2023, 2049 UTC
by kris
0 Replies
230 Views
Last post December 02, 2023, 1153 UTC
by Ray Lalleu
0 Replies
230 Views
Last post May 21, 2023, 2040 UTC
by kris
0 Replies
230 Views
Last post September 20, 2023, 1433 UTC
by Ray Lalleu
0 Replies
230 Views
Last post November 26, 2023, 1114 UTC
by Ray Lalleu
0 Replies
230 Views
Last post May 10, 2024, 1616 UTC
by Ray Lalleu
0 Replies
230 Views
Last post February 21, 2024, 1759 UTC
by Ray Lalleu
0 Replies
230 Views
Last post February 03, 2025, 1940 UTC
by Ray Lalleu
0 Replies
230 Views
Last post May 20, 2025, 1333 UTC
by Alex BLR

 

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