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
185 Views
Last post October 19, 2025, 1732 UTC
by DBullock
2 Replies
607 Views
Last post June 28, 2024, 2114 UTC
by dxace1
1 Replies
798 Views
Last post June 14, 2025, 2022 UTC
by Princo
1 Replies
138 Views
Last post September 27, 2025, 1753 UTC
by RadioLongWire
0 Replies
312 Views
Last post March 22, 2025, 2316 UTC
by Ray Lalleu
1 Replies
465 Views
Last post September 29, 2023, 2153 UTC
by kris
1 Replies
463 Views
Last post June 09, 2024, 2236 UTC
by kris
0 Replies
264 Views
Last post November 07, 2024, 1822 UTC
by Ray Lalleu
0 Replies
330 Views
Last post October 06, 2020, 2009 UTC
by Ray Lalleu
4 Replies
794 Views
Last post February 23, 2024, 1830 UTC
by DonMooreDXer
2 Replies
696 Views
Last post March 07, 2024, 1834 UTC
by kris
3 Replies
516 Views
Last post October 14, 2023, 2057 UTC
by N2MLP
8 Replies
1040 Views
Last post August 02, 2024, 1149 UTC
by easy listener
3 Replies
433 Views
Last post August 16, 2024, 1940 UTC
by europirate
0 Replies
449 Views
Last post December 30, 2023, 1651 UTC
by Ray Lalleu
2 Replies
669 Views
Last post January 06, 2024, 1708 UTC
by Fisherman
0 Replies
248 Views
Last post May 17, 2025, 1947 UTC
by Ray Lalleu
1 Replies
880 Views
Last post July 28, 2019, 2130 UTC
by Ray Lalleu
4 Replies
951 Views
Last post October 06, 2023, 1919 UTC
by Jari Finland
2 Replies
553 Views
Last post March 22, 2024, 1823 UTC
by Fisherman

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground T-Shirt
by MitchellTimeDesigns