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
4 Replies
383 Views
Last post December 01, 2024, 1054 UTC
by Mike Radio
0 Replies
428 Views
Last post April 25, 2019, 1901 UTC
by Ray Lalleu
0 Replies
186 Views
Last post April 21, 2024, 0707 UTC
by Ray Lalleu
2 Replies
539 Views
Last post May 01, 2022, 2059 UTC
by Shortwave_Listener
1 Replies
465 Views
Last post October 20, 2023, 0003 UTC
by Charlie_Dont_Surf
2 Replies
532 Views
Last post October 27, 2021, 1954 UTC
by The Ether Hacker
1 Replies
486 Views
Last post February 23, 2020, 1757 UTC
by kris
1 Replies
528 Views
Last post November 27, 2018, 1643 UTC
by Ray Lalleu
0 Replies
241 Views
Last post January 14, 2025, 1934 UTC
by Ray Lalleu
0 Replies
330 Views
Last post January 22, 2024, 1415 UTC
by Ray Lalleu
0 Replies
316 Views
Last post February 26, 2023, 2008 UTC
by Ray Lalleu
1 Replies
513 Views
Last post January 28, 2022, 2203 UTC
by kris
1 Replies
458 Views
Last post May 12, 2020, 2314 UTC
by PirateSWL
2 Replies
620 Views
Last post June 14, 2019, 1958 UTC
by texas1dxer
0 Replies
393 Views
Last post July 11, 2021, 0942 UTC
by Ray Lalleu
0 Replies
394 Views
Last post October 20, 2019, 0906 UTC
by Ray Lalleu
4 Replies
628 Views
Last post October 16, 2022, 0504 UTC
by Shortwave_Listener
0 Replies
363 Views
Last post December 27, 2020, 1037 UTC
by Ray Lalleu
3 Replies
519 Views
Last post February 25, 2024, 1716 UTC
by kris
0 Replies
416 Views
Last post March 13, 2022, 1604 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 Garden Flag
by MitchellTimeDesigns