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
6 Replies
1179 Views
Last post February 10, 2023, 0057 UTC
by Ray Lalleu
1 Replies
2423 Views
Last post March 09, 2020, 2238 UTC
by Skipmuck
2 Replies
1329 Views
Last post March 12, 2019, 1144 UTC
by ChrisSmolinski
4 Replies
1422 Views
Last post November 06, 2020, 0946 UTC
by RobRich
1 Replies
1188 Views
Last post January 31, 2020, 1241 UTC
by ChrisSmolinski
4 Replies
1457 Views
Last post October 29, 2024, 1126 UTC
by ChrisSmolinski
6 Replies
2573 Views
Last post November 03, 2023, 0123 UTC
by Shortwave_Listener
6 Replies
266 Views
Last post September 20, 2025, 2341 UTC
by N2MLP
4 Replies
1895 Views
Last post February 17, 2024, 0016 UTC
by DangerKitty
2 Replies
3328 Views
Last post February 11, 2025, 0140 UTC
by dxace1
2 Replies
896 Views
Last post July 12, 2023, 0031 UTC
by ChrisLobdell
9 Replies
1304 Views
Last post July 15, 2023, 1715 UTC
by ChrisSmolinski
7 Replies
4532 Views
Last post May 10, 2025, 0131 UTC
by Sky Waves
3 Replies
805 Views
Last post July 19, 2025, 1443 UTC
by ChrisSmolinski
4 Replies
3683 Views
Last post January 11, 2025, 0017 UTC
by K1MLP
1 Replies
1009 Views
Last post September 03, 2023, 1936 UTC
by Daniel Wyllyans
0 Replies
854 Views
Last post October 28, 2018, 1442 UTC
by Daniel Wyllyans
1 Replies
1004 Views
Last post December 26, 2019, 1452 UTC
by ChrisSmolinski
0 Replies
1241 Views
Last post March 26, 2018, 0947 UTC
by Daniel Wyllyans
0 Replies
692 Views
Last post January 17, 2023, 1250 UTC
by Daniel Wyllyans

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground Mug
HFUnderground Mug
by MitchellTimeDesigns