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
869 Views
Last post November 17, 2018, 0000 UTC
by OZDXer
0 Replies
353 Views
Last post November 11, 2020, 1645 UTC
by Ray Lalleu
1 Replies
243 Views
Last post August 06, 2022, 1707 UTC
by Shortwave_Listener
0 Replies
85 Views
Last post July 19, 2025, 1951 UTC
by Ray Lalleu
0 Replies
689 Views
Last post April 22, 2018, 1503 UTC
by Ray Lalleu
0 Replies
533 Views
Last post June 29, 2018, 2140 UTC
by Ray Lalleu
0 Replies
402 Views
Last post August 21, 2019, 1946 UTC
by Ray Lalleu
0 Replies
322 Views
Last post August 13, 2020, 1826 UTC
by Ray Lalleu
0 Replies
464 Views
Last post May 17, 2021, 2014 UTC
by Ray Lalleu
0 Replies
387 Views
Last post April 24, 2022, 0816 UTC
by Ray Lalleu
0 Replies
203 Views
Last post April 22, 2023, 1550 UTC
by Ray Lalleu
0 Replies
583 Views
Last post April 19, 2019, 1346 UTC
by Ray Lalleu
0 Replies
348 Views
Last post December 24, 2022, 1112 UTC
by Ray Lalleu
1 Replies
473 Views
Last post December 21, 2019, 1132 UTC
by FOX
1 Replies
504 Views
Last post September 05, 2021, 1430 UTC
by kris
0 Replies
350 Views
Last post June 04, 2025, 0746 UTC
by Ray Lalleu
0 Replies
314 Views
Last post June 28, 2020, 1735 UTC
by Ray Lalleu
0 Replies
410 Views
Last post March 19, 2022, 2225 UTC
by Ray Lalleu
1 Replies
526 Views
Last post February 17, 2019, 2252 UTC
by Skipmuck
1 Replies
645 Views
Last post April 05, 2020, 1742 UTC
by prldx

 

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