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
899 Views
Last post December 14, 2023, 1259 UTC
by ChrisSmolinski
2 Replies
626 Views
Last post September 07, 2024, 0514 UTC
by Big Badfish Al
0 Replies
429 Views
Last post July 08, 2023, 0412 UTC
by Shortwave_Listener
5 Replies
1136 Views
Last post March 28, 2023, 2108 UTC
by dxace1
1 Replies
584 Views
Last post September 06, 2022, 0015 UTC
by Pigmeat
2 Replies
505 Views
Last post September 24, 2023, 0239 UTC
by myteaquinn
10 Replies
1780 Views
Last post October 29, 2023, 2230 UTC
by N2MLP
7 Replies
1206 Views
Last post May 06, 2023, 0313 UTC
by Andrew Yoder
0 Replies
516 Views
Last post March 09, 2023, 0220 UTC
by Shortwave_Listener
1 Replies
568 Views
Last post May 13, 2024, 0337 UTC
by Skipmuck
0 Replies
427 Views
Last post January 30, 2024, 0335 UTC
by Shortwave_Listener
3 Replies
453 Views
Last post June 20, 2023, 0134 UTC
by Chuck54
1 Replies
543 Views
Last post February 21, 2025, 0115 UTC
by Quasar
4 Replies
735 Views
Last post March 10, 2024, 1826 UTC
by ChrisSmolinski
15 Replies
1834 Views
Last post September 25, 2022, 0023 UTC
by Davep
13 Replies
1542 Views
Last post November 02, 2024, 0113 UTC
by Tony_Pavick
6 Replies
940 Views
Last post March 18, 2023, 0311 UTC
by myteaquinn
3 Replies
965 Views
Last post March 13, 2024, 0016 UTC
by ChrisLobdell
45 Replies
4818 Views
Last post October 02, 2022, 1553 UTC
by Sealord
2 Replies
485 Views
Last post August 30, 2024, 0254 UTC
by intellman

 

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