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
721 Views
Last post February 25, 2022, 1003 UTC
by kris
0 Replies
724 Views
Last post June 12, 2022, 0938 UTC
by RobRich
0 Replies
725 Views
Last post October 26, 2022, 1828 UTC
by kris
0 Replies
725 Views
Last post October 06, 2024, 2103 UTC
by Shortwave_Listener
0 Replies
725 Views
Last post February 29, 2024, 1611 UTC
by ~SIGINT~
0 Replies
725 Views
Last post June 05, 2022, 2237 UTC
by Ct Yankee
0 Replies
726 Views
Last post June 26, 2024, 0443 UTC
by TrueNorthSWL
0 Replies
726 Views
Last post July 16, 2024, 0144 UTC
by n2avh
18051.5 U

Started by rec/cat7610

0 Replies
726 Views
Last post November 18, 2021, 1541 UTC
by rec/cat7610
0 Replies
726 Views
Last post January 26, 2024, 2327 UTC
by RobRich
1 Replies
727 Views
Last post November 27, 2022, 0635 UTC
by AbnersFarm
0 Replies
727 Views
Last post April 20, 2023, 1435 UTC
by TRI International
0 Replies
727 Views
Last post June 18, 2022, 0018 UTC
by Cross the Rubicon
0 Replies
728 Views
Last post November 15, 2020, 1310 UTC
by UtilitySeattle
0 Replies
728 Views
Last post February 03, 2022, 0848 UTC
by UtilitySeattle
0 Replies
729 Views
Last post April 04, 2024, 1505 UTC
by WA4OSH
0 Replies
729 Views
Last post November 25, 2024, 2327 UTC
by kris
0 Replies
729 Views
Last post April 12, 2023, 2328 UTC
by ~SIGINT~
0 Replies
729 Views
Last post February 25, 2022, 1538 UTC
by kris
0 Replies
729 Views
Last post October 04, 2024, 2327 UTC
by N2MLP

 

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