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
749 Views
Last post May 29, 2024, 2009 UTC
by Ray Lalleu
3 Replies
624 Views
Last post May 11, 2025, 1856 UTC
by Ray Lalleu
2 Replies
460 Views
Last post May 17, 2024, 2014 UTC
by Ray Lalleu
2 Replies
348 Views
Last post June 02, 2024, 0952 UTC
by Ray Lalleu
1 Replies
106 Views
Last post November 16, 2025, 1021 UTC
by Ray Lalleu
1 Replies
288 Views
Last post December 25, 2024, 1011 UTC
by Ray Lalleu
0 Replies
223 Views
Last post April 16, 2024, 1842 UTC
by DBullock
0 Replies
121 Views
Last post September 21, 2025, 1812 UTC
by DBullock
1 Replies
339 Views
Last post September 01, 2024, 1940 UTC
by Ray Lalleu
2 Replies
515 Views
Last post May 31, 2024, 1857 UTC
by Ray Lalleu
4 Replies
785 Views
Last post March 20, 2020, 1850 UTC
by RainBrandy
0 Replies
461 Views
Last post May 22, 2022, 0722 UTC
by DaveS
3 Replies
1557 Views
Last post July 11, 2017, 2059 UTC
by kris
0 Replies
981 Views
Last post July 07, 2017, 0141 UTC
by Davep
2 Replies
1601 Views
Last post July 06, 2017, 0139 UTC
by Rafman
0 Replies
997 Views
Last post June 20, 2017, 0410 UTC
by Davep
6 Replies
2318 Views
Last post May 15, 2017, 2157 UTC
by atrainradio
1 Replies
1116 Views
Last post June 02, 2017, 0355 UTC
by JoeFLIPS
0 Replies
765 Views
Last post April 03, 2019, 0118 UTC
by Davep
0 Replies
953 Views
Last post June 04, 2016, 0425 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 T-Shirt
by MitchellTimeDesigns