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
497 Views
Last post October 24, 2019, 2020 UTC
by Ray Lalleu
1 Replies
1329 Views
Last post February 01, 2015, 0005 UTC
by ChrisSmolinski
0 Replies
239 Views
Last post July 26, 2025, 2204 UTC
by kris
4 Replies
1050 Views
Last post February 05, 2022, 1849 UTC
by KaySeeks
1 Replies
413 Views
Last post November 03, 2020, 1929 UTC
by Ray Lalleu
0 Replies
405 Views
Last post November 14, 2020, 2232 UTC
by kris
0 Replies
576 Views
Last post June 26, 2021, 2139 UTC
by TRI International
1 Replies
323 Views
Last post December 31, 2024, 1440 UTC
by Ray Lalleu
4 Replies
584 Views
Last post December 25, 2024, 1157 UTC
by ukdxer
5 Replies
791 Views
Last post January 01, 2025, 1435 UTC
by dxace1
3 Replies
135 Views
Last post December 25, 2025, 1157 UTC
by jackroberts
2 Replies
580 Views
Last post February 13, 2023, 1047 UTC
by TRI International
0 Replies
553 Views
Last post September 02, 2018, 1317 UTC
by Ray Lalleu
0 Replies
330 Views
Last post June 28, 2024, 1723 UTC
by Ray Lalleu
0 Replies
284 Views
Last post June 30, 2024, 1535 UTC
by RainBrandy
0 Replies
270 Views
Last post April 16, 2023, 1421 UTC
by Ray Lalleu
0 Replies
272 Views
Last post March 12, 2023, 1600 UTC
by Ray Lalleu
1 Replies
384 Views
Last post March 12, 2023, 1005 UTC
by Ray Lalleu
0 Replies
448 Views
Last post February 08, 2021, 1151 UTC
by kris
0 Replies
471 Views
Last post January 21, 2021, 1949 UTC
by kris

 

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