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
218 Views
Last post July 02, 2023, 0747 UTC
by Robertas
0 Replies
329 Views
Last post June 18, 2022, 1809 UTC
by Ray Lalleu
0 Replies
323 Views
Last post October 04, 2020, 1712 UTC
by Ray Lalleu
1 Replies
654 Views
Last post October 27, 2019, 1340 UTC
by RainBrandy
1 Replies
653 Views
Last post September 26, 2018, 2120 UTC
by kris
2 Replies
281 Views
Last post October 18, 2024, 2153 UTC
by TRI International
2 Replies
518 Views
Last post December 03, 2023, 1859 UTC
by kris
1 Replies
444 Views
Last post December 12, 2021, 1626 UTC
by Bali_Frank
0 Replies
370 Views
Last post April 05, 2020, 1622 UTC
by Ray Lalleu
1 Replies
747 Views
Last post February 17, 2019, 2036 UTC
by NO2CW
0 Replies
266 Views
Last post March 02, 2024, 1808 UTC
by Ray Lalleu
0 Replies
295 Views
Last post June 28, 2020, 1655 UTC
by Ray Lalleu
2 Replies
643 Views
Last post June 03, 2025, 2136 UTC
by kris
0 Replies
203 Views
Last post August 20, 2023, 1705 UTC
by Ray Lalleu
0 Replies
353 Views
Last post December 21, 2019, 1041 UTC
by Ray Lalleu
0 Replies
218 Views
Last post December 24, 2022, 1104 UTC
by Ray Lalleu
1 Replies
446 Views
Last post February 09, 2021, 1425 UTC
by kris
0 Replies
396 Views
Last post April 19, 2019, 1036 UTC
by Ray Lalleu
0 Replies
262 Views
Last post April 12, 2024, 0736 UTC
by Ray Lalleu
0 Replies
383 Views
Last post April 24, 2022, 0813 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 House Flag
by MitchellTimeDesigns