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
0 Replies
273 Views
Last post December 17, 2023, 1838 UTC
by Ray Lalleu
0 Replies
273 Views
Last post May 22, 2023, 0736 UTC
by Ray Lalleu
1 Replies
273 Views
Last post May 11, 2025, 0803 UTC
by europirate
0 Replies
273 Views
Last post May 18, 2024, 2214 UTC
by Ray Lalleu
0 Replies
273 Views
Last post March 27, 2023, 1913 UTC
by Ray Lalleu
1 Replies
273 Views
Last post April 06, 2023, 1923 UTC
by kris
0 Replies
273 Views
Last post March 24, 2024, 0929 UTC
by Fisherman
2 Replies
273 Views
Last post October 01, 2023, 1302 UTC
by Ethernut
0 Replies
273 Views
Last post March 20, 2025, 2011 UTC
by Ray Lalleu
0 Replies
273 Views
Last post December 11, 2020, 1656 UTC
by Ray Lalleu
2 Replies
273 Views
Last post June 16, 2024, 1924 UTC
by Ray Lalleu
0 Replies
273 Views
Last post June 09, 2023, 2019 UTC
by Ray Lalleu
0 Replies
273 Views
Last post February 06, 2023, 1933 UTC
by Ray Lalleu
1 Replies
273 Views
Last post July 23, 2023, 0912 UTC
by m3ozp1
0 Replies
273 Views
Last post September 29, 2022, 1653 UTC
by Ray Lalleu
3 Replies
273 Views
Last post July 30, 2025, 1929 UTC
by Robertas
0 Replies
273 Views
Last post December 04, 2020, 1340 UTC
by Ray Lalleu
0 Replies
273 Views
Last post November 27, 2022, 1817 UTC
by Ct Yankee
1 Replies
273 Views
Last post April 26, 2023, 1853 UTC
by Ray Lalleu
3 Replies
273 Views
Last post August 09, 2025, 1927 UTC
by Robertas

 

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