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
1006 Views
Last post January 05, 2023, 1600 UTC
by Pigmeat
0 Replies
652 Views
Last post December 27, 2022, 1119 UTC
by TRI International
1 Replies
683 Views
Last post December 26, 2022, 1532 UTC
by Ray Lalleu
0 Replies
636 Views
Last post December 22, 2022, 1229 UTC
by kris
0 Replies
588 Views
Last post December 21, 2022, 0115 UTC
by kris
0 Replies
603 Views
Last post December 20, 2022, 1348 UTC
by MI0YCK
0 Replies
587 Views
Last post December 20, 2022, 0023 UTC
by kris
0 Replies
547 Views
Last post December 19, 2022, 1548 UTC
by ~SIGINT~
0 Replies
544 Views
Last post December 17, 2022, 1343 UTC
by ~SIGINT~
1 Replies
819 Views
Last post December 10, 2022, 2313 UTC
by Shortwave_Listener
2 Replies
810 Views
Last post December 06, 2022, 1853 UTC
by kris
1 Replies
782 Views
Last post December 04, 2022, 2023 UTC
by Pigmeat
1 Replies
650 Views
Last post December 02, 2022, 1928 UTC
by kris
15 Replies
2552 Views
Last post December 02, 2022, 0553 UTC
by Shortwave_Listener
0 Replies
592 Views
Last post November 30, 2022, 2303 UTC
by kris
4 Replies
825 Views
Last post November 30, 2022, 2127 UTC
by Pigmeat
1 Replies
666 Views
Last post November 30, 2022, 1316 UTC
by Bali_Frank
6 Replies
1347 Views
Last post November 29, 2022, 0419 UTC
by Pigmeat
3 Replies
715 Views
Last post November 26, 2022, 1750 UTC
by Skipmuck
0 Replies
638 Views
Last post November 20, 2022, 2139 UTC
by SWL-JO21

 

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