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
445 Views
Last post March 29, 2020, 1852 UTC
by kris
0 Replies
271 Views
Last post December 11, 2022, 0944 UTC
by Ray Lalleu
2 Replies
161 Views
Last post September 06, 2025, 1846 UTC
by Ray Lalleu
0 Replies
456 Views
Last post September 13, 2018, 1635 UTC
by Ray Lalleu
2 Replies
500 Views
Last post June 09, 2022, 1827 UTC
by SWreflection
1 Replies
362 Views
Last post June 15, 2024, 0006 UTC
by N2MLP
0 Replies
344 Views
Last post June 19, 2020, 2320 UTC
by Ray Lalleu
0 Replies
409 Views
Last post March 12, 2022, 1313 UTC
by Ray Lalleu
5 Replies
641 Views
Last post February 24, 2024, 1823 UTC
by Shortwave_Listener
0 Replies
658 Views
Last post February 02, 2019, 2206 UTC
by Ray Lalleu
0 Replies
304 Views
Last post December 25, 2020, 1524 UTC
by Ray Lalleu
0 Replies
385 Views
Last post October 18, 2019, 0825 UTC
by Ray Lalleu
1 Replies
462 Views
Last post July 09, 2021, 2032 UTC
by FOX
1 Replies
263 Views
Last post April 23, 2025, 0845 UTC
by Benoit LEVEQUE
0 Replies
439 Views
Last post June 11, 2019, 1826 UTC
by Ray Lalleu
0 Replies
356 Views
Last post May 10, 2020, 1502 UTC
by Ray Lalleu
0 Replies
543 Views
Last post January 24, 2022, 1446 UTC
by Ray Lalleu
0 Replies
585 Views
Last post January 21, 2024, 0911 UTC
by Ray Lalleu
0 Replies
231 Views
Last post January 11, 2025, 1651 UTC
by Ray Lalleu
0 Replies
399 Views
Last post November 24, 2018, 1313 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 T-Shirt
by MitchellTimeDesigns