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
377 Views
Last post October 30, 2023, 1132 UTC
by Ray Lalleu
0 Replies
227 Views
Last post February 25, 2023, 1123 UTC
by Ray Lalleu
0 Replies
173 Views
Last post December 09, 2024, 1055 UTC
by Ray Lalleu
0 Replies
182 Views
Last post April 19, 2025, 1049 UTC
by Ray Lalleu
0 Replies
290 Views
Last post June 03, 2023, 1049 UTC
by Ray Lalleu
0 Replies
268 Views
Last post November 12, 2022, 1041 UTC
by Ray Lalleu
1 Replies
278 Views
Last post August 27, 2023, 2053 UTC
by N2MLP
0 Replies
242 Views
Last post January 07, 2023, 1025 UTC
by Ray Lalleu
0 Replies
389 Views
Last post November 06, 2023, 1225 UTC
by Ray Lalleu
0 Replies
192 Views
Last post October 26, 2024, 1022 UTC
by Ray Lalleu
0 Replies
219 Views
Last post June 23, 2024, 1024 UTC
by Ray Lalleu
0 Replies
227 Views
Last post February 04, 2023, 1018 UTC
by Ray Lalleu
3 Replies
577 Views
Last post February 09, 2025, 1037 UTC
by PATRICE D PRIVAT
0 Replies
228 Views
Last post July 30, 2023, 1005 UTC
by Ray Lalleu
0 Replies
228 Views
Last post September 30, 2024, 1037 UTC
by Ray Lalleu
0 Replies
213 Views
Last post May 05, 2024, 0950 UTC
by Ray Lalleu
0 Replies
228 Views
Last post September 30, 2023, 0945 UTC
by Ray Lalleu
0 Replies
251 Views
Last post August 06, 2023, 0935 UTC
by Ray Lalleu
0 Replies
218 Views
Last post June 24, 2023, 0929 UTC
by Ray Lalleu
0 Replies
240 Views
Last post April 29, 2023, 0920 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