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
252 Views
Last post February 19, 2023, 1102 UTC
by TRI International
0 Replies
182 Views
Last post February 22, 2025, 1038 UTC
by Ray Lalleu
0 Replies
269 Views
Last post September 02, 2024, 0940 UTC
by FOX
4 Replies
2046 Views
Last post December 30, 2014, 0647 UTC
by dxextra
2 Replies
954 Views
Last post April 01, 2018, 0223 UTC
by Daniel Wyllyans
1 Replies
460 Views
Last post November 21, 2020, 0831 UTC
by Ray Lalleu
0 Replies
398 Views
Last post May 09, 2021, 0733 UTC
by Ray Lalleu
6 Replies
790 Views
Last post September 14, 2024, 1643 UTC
by Ray Lalleu
0 Replies
263 Views
Last post November 20, 2022, 0904 UTC
by dave1965
1 Replies
410 Views
Last post January 23, 2021, 1514 UTC
by Bali_Frank
3 Replies
652 Views
Last post April 30, 2020, 2058 UTC
by Brian
4 Replies
1400 Views
Last post May 08, 2018, 2217 UTC
by Ronald_Mullis
3 Replies
443 Views
Last post August 09, 2024, 1712 UTC
by m3ozp1
5 Replies
822 Views
Last post September 16, 2024, 2006 UTC
by fox558
0 Replies
1130 Views
Last post April 22, 2016, 1841 UTC
by FOX
0 Replies
827 Views
Last post November 24, 2017, 1541 UTC
by Drivertess
0 Replies
170 Views
Last post September 07, 2024, 2014 UTC
by Ray Lalleu
0 Replies
74 Views
Last post July 13, 2025, 1554 UTC
by Ray Lalleu
0 Replies
279 Views
Last post March 30, 2024, 1454 UTC
by Ray Lalleu
0 Replies
592 Views
Last post March 04, 2019, 1537 UTC
by dxace1

 

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