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
573 Views
Last post June 23, 2018, 2106 UTC
by kris
1 Replies
292 Views
Last post July 14, 2025, 1619 UTC
by Alex BLR
0 Replies
248 Views
Last post October 07, 2023, 1702 UTC
by Ray Lalleu
0 Replies
401 Views
Last post October 02, 2022, 0733 UTC
by Ray Lalleu
0 Replies
413 Views
Last post October 13, 2021, 1355 UTC
by Ray Lalleu
0 Replies
382 Views
Last post December 17, 2020, 1723 UTC
by Ray Lalleu
0 Replies
356 Views
Last post February 07, 2020, 1256 UTC
by Ray Lalleu
0 Replies
802 Views
Last post January 14, 2019, 2219 UTC
by Ray Lalleu
2 Replies
227 Views
Last post December 31, 2024, 1351 UTC
by FOX
0 Replies
414 Views
Last post March 18, 2021, 1413 UTC
by Ray Lalleu
0 Replies
411 Views
Last post May 28, 2019, 1945 UTC
by Ray Lalleu
2 Replies
547 Views
Last post May 31, 2022, 0325 UTC
by Shortwave_Listener
1 Replies
525 Views
Last post November 24, 2021, 1510 UTC
by Bali_Frank
0 Replies
331 Views
Last post March 22, 2020, 0859 UTC
by Ray Lalleu
0 Replies
278 Views
Last post February 16, 2025, 2003 UTC
by Ray Lalleu
0 Replies
389 Views
Last post April 01, 2023, 2307 UTC
by Ray Lalleu
0 Replies
528 Views
Last post March 03, 2022, 1715 UTC
by Ray Lalleu
0 Replies
334 Views
Last post June 09, 2020, 1005 UTC
by Ray Lalleu
1 Replies
228 Views
Last post May 18, 2025, 1747 UTC
by Alex BLR
1 Replies
278 Views
Last post July 31, 2023, 2115 UTC
by europirate

 

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