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
577 Views
Last post January 02, 2019, 1502 UTC
by kris
0 Replies
405 Views
Last post February 25, 2022, 1703 UTC
by Ray Lalleu
0 Replies
376 Views
Last post June 01, 2020, 2150 UTC
by Ray Lalleu
0 Replies
197 Views
Last post May 12, 2025, 2010 UTC
by Ray Lalleu
0 Replies
185 Views
Last post July 24, 2023, 1823 UTC
by Ray Lalleu
2 Replies
589 Views
Last post August 08, 2021, 2156 UTC
by Grey Fox
0 Replies
609 Views
Last post November 15, 2019, 2231 UTC
by Ray Lalleu
0 Replies
206 Views
Last post November 13, 2022, 1545 UTC
by Ray Lalleu
0 Replies
407 Views
Last post January 17, 2021, 1128 UTC
by Ray Lalleu
1 Replies
938 Views
Last post March 16, 2019, 0357 UTC
by SV1XV
0 Replies
388 Views
Last post July 16, 2020, 1637 UTC
by Ray Lalleu
0 Replies
413 Views
Last post July 14, 2019, 0857 UTC
by Ray Lalleu
1 Replies
711 Views
Last post May 17, 2018, 1926 UTC
by KaySeeks
0 Replies
412 Views
Last post June 19, 2025, 1956 UTC
by Ray Lalleu
1 Replies
452 Views
Last post July 04, 2022, 1806 UTC
by henri
3 Replies
671 Views
Last post September 23, 2021, 1836 UTC
by kobalts
0 Replies
290 Views
Last post October 22, 2020, 1839 UTC
by Ray Lalleu
1 Replies
456 Views
Last post January 06, 2020, 1131 UTC
by kris
0 Replies
460 Views
Last post October 16, 2018, 1426 UTC
by Ray Lalleu
0 Replies
533 Views
Last post April 17, 2020, 1656 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