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
583 Views
Last post December 28, 2019, 2126 UTC
by kris
0 Replies
432 Views
Last post November 28, 2018, 1939 UTC
by Ray Lalleu
0 Replies
394 Views
Last post January 01, 2023, 1705 UTC
by Ray Lalleu
0 Replies
352 Views
Last post February 15, 2021, 1655 UTC
by Ray Lalleu
2 Replies
632 Views
Last post April 26, 2019, 1350 UTC
by Ray Lalleu
1 Replies
710 Views
Last post July 14, 2018, 1649 UTC
by Brian
0 Replies
130 Views
Last post August 01, 2025, 1608 UTC
by Ray Lalleu
0 Replies
292 Views
Last post October 20, 2023, 1644 UTC
by Ray Lalleu
2 Replies
417 Views
Last post October 28, 2021, 1656 UTC
by Bali_Frank
0 Replies
203 Views
Last post January 15, 2025, 1722 UTC
by Ray Lalleu
1 Replies
364 Views
Last post January 23, 2024, 0916 UTC
by Fisherman
1 Replies
305 Views
Last post February 27, 2023, 1632 UTC
by Bali_Frank
1 Replies
485 Views
Last post January 29, 2022, 1437 UTC
by Bali_Frank
4 Replies
961 Views
Last post March 30, 2021, 2329 UTC
by Molvania Poacher
0 Replies
478 Views
Last post June 15, 2019, 1055 UTC
by Ray Lalleu
1 Replies
227 Views
Last post April 26, 2025, 1041 UTC
by Alex BLR
0 Replies
244 Views
Last post June 24, 2023, 1846 UTC
by Ray Lalleu
0 Replies
391 Views
Last post June 11, 2022, 2246 UTC
by Ray Lalleu
5 Replies
931 Views
Last post July 11, 2021, 1655 UTC
by Cruisinradio
0 Replies
384 Views
Last post October 20, 2019, 1458 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 House Flag
by MitchellTimeDesigns