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
3 Replies
832 Views
Last post November 26, 2023, 1048 UTC
by fabrys
4 Replies
689 Views
Last post June 20, 2020, 2058 UTC
by FOX
1 Replies
667 Views
Last post March 14, 2021, 1255 UTC
by Ray Lalleu
1 Replies
740 Views
Last post March 14, 2021, 1250 UTC
by greekdx
1 Replies
443 Views
Last post November 18, 2024, 1538 UTC
by TRI International
1 Replies
467 Views
Last post June 20, 2020, 1949 UTC
by Ray Lalleu
1 Replies
794 Views
Last post November 04, 2023, 1049 UTC
by Ray Lalleu
1 Replies
520 Views
Last post June 06, 2020, 1713 UTC
by Ray Lalleu
1 Replies
504 Views
Last post June 30, 2023, 2100 UTC
by Ray Lalleu
2 Replies
647 Views
Last post June 11, 2020, 1715 UTC
by kris
1 Replies
689 Views
Last post November 04, 2023, 1003 UTC
by Ray Lalleu
4 Replies
1083 Views
Last post April 17, 2022, 1919 UTC
by The Vault Keeper
1 Replies
435 Views
Last post June 13, 2020, 1912 UTC
by Ray Lalleu
1 Replies
495 Views
Last post October 29, 2023, 1933 UTC
by Ray Lalleu
2 Replies
682 Views
Last post October 29, 2023, 1839 UTC
by kris
1 Replies
581 Views
Last post March 27, 2024, 1919 UTC
by Ray Lalleu
2 Replies
772 Views
Last post April 16, 2021, 2148 UTC
by kris
2 Replies
935 Views
Last post February 03, 2022, 1232 UTC
by ChrisSmolinski
4 Replies
642 Views
Last post May 14, 2023, 2035 UTC
by fox558
1 Replies
531 Views
Last post February 24, 2023, 2017 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