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
1 Replies
676 Views
Last post October 25, 2017, 2037 UTC
by MDK2
3 Replies
676 Views
Last post December 27, 2024, 1230 UTC
by autovon
0 Replies
676 Views
Last post March 29, 2018, 2336 UTC
by Skipmuck
4 Replies
676 Views
Last post May 04, 2023, 2019 UTC
by Pigmeat
1 Replies
676 Views
Last post March 11, 2025, 0334 UTC
by East Troy Don
0 Replies
676 Views
Last post February 25, 2025, 1417 UTC
by kris
0 Replies
676 Views
Last post November 20, 2019, 0013 UTC
by FTIOM01
0 Replies
675 Views
Last post July 30, 2016, 1946 UTC
by Ct Yankee
0 Replies
675 Views
Last post September 22, 2016, 0059 UTC
by Daniel Wyllyans
2 Replies
675 Views
Last post July 17, 2021, 1056 UTC
by RobRich
0 Replies
675 Views
Last post March 25, 2018, 1000 UTC
by Ct Yankee
0 Replies
675 Views
Last post September 19, 2018, 2352 UTC
by East Troy Don
0 Replies
675 Views
Last post September 20, 2018, 0120 UTC
by East Troy Don
2 Replies
675 Views
Last post March 01, 2024, 1449 UTC
by Swede P
1 Replies
675 Views
Last post November 19, 2020, 2004 UTC
by Treehouse SWL
1 Replies
674 Views
Last post July 27, 2020, 1618 UTC
by Ray Lalleu
0 Replies
674 Views
Last post January 04, 2019, 1538 UTC
by East Troy Don
0 Replies
674 Views
Last post January 09, 2019, 1626 UTC
by East Troy Don
0 Replies
674 Views
Last post February 16, 2019, 1503 UTC
by autovon
0 Replies
674 Views
Last post February 27, 2019, 0330 UTC
by Davep

 

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