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
763 Views
Last post December 28, 2018, 2108 UTC
by Ray Lalleu
1 Replies
763 Views
Last post July 26, 2019, 0002 UTC
by Skipmuck
0 Replies
763 Views
Last post July 29, 2019, 2131 UTC
by Ray Lalleu
1 Replies
763 Views
Last post September 29, 2018, 0504 UTC
by John Vinther Nielsen
8 Replies
763 Views
Last post February 18, 2024, 2157 UTC
by Ray Lalleu
2 Replies
763 Views
Last post March 01, 2020, 1210 UTC
by RainBrandy
4 Replies
763 Views
Last post December 11, 2021, 1552 UTC
by kris
1 Replies
763 Views
Last post July 24, 2018, 2010 UTC
by KaySeeks
1 Replies
763 Views
Last post January 05, 2019, 1125 UTC
by kris
4 Replies
763 Views
Last post July 10, 2022, 2201 UTC
by Skipmuck
2 Replies
763 Views
Last post July 18, 2020, 2055 UTC
by Skipmuck
3 Replies
763 Views
Last post July 17, 2021, 2146 UTC
by Grey Fox
5 Replies
764 Views
Last post July 29, 2024, 1114 UTC
by Fisherman
3 Replies
764 Views
Last post March 21, 2020, 1655 UTC
by Ray Lalleu
2 Replies
764 Views
Last post October 27, 2018, 2109 UTC
by Ray Lalleu
4 Replies
764 Views
Last post December 26, 2021, 2309 UTC
by Bali_Frank
2 Replies
764 Views
Last post November 24, 2018, 2024 UTC
by kris
3 Replies
764 Views
Last post November 26, 2023, 1048 UTC
by fabrys
4 Replies
764 Views
Last post September 22, 2020, 2307 UTC
by greekdx
4 Replies
764 Views
Last post August 29, 2020, 2334 UTC
by Ray Lalleu

 

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