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
610 Views
Last post June 09, 2016, 1804 UTC
by JoeFLIPS
0 Replies
916 Views
Last post June 10, 2016, 2150 UTC
by JoeFLIPS
0 Replies
945 Views
Last post June 21, 2016, 1904 UTC
by JoeFLIPS
0 Replies
775 Views
Last post June 10, 2016, 2029 UTC
by JoeFLIPS
1 Replies
229 Views
Last post December 07, 2024, 0001 UTC
by Ray Lalleu
0 Replies
379 Views
Last post May 29, 2022, 1718 UTC
by Ray Lalleu
0 Replies
201 Views
Last post April 23, 2023, 1416 UTC
by Ray Lalleu
1 Replies
294 Views
Last post December 17, 2022, 1440 UTC
by Bali_Frank
0 Replies
228 Views
Last post October 13, 2023, 1653 UTC
by Ray Lalleu
1 Replies
149 Views
Last post April 27, 2025, 0733 UTC
by Benoit LEVEQUE
0 Replies
170 Views
Last post August 20, 2023, 1828 UTC
by Ray Lalleu
0 Replies
202 Views
Last post October 09, 2023, 1828 UTC
by Ray Lalleu
0 Replies
361 Views
Last post June 22, 2022, 1958 UTC
by Ray Lalleu
0 Replies
217 Views
Last post October 15, 2022, 2029 UTC
by Ray Lalleu
0 Replies
206 Views
Last post January 20, 2023, 1703 UTC
by Ray Lalleu
2 Replies
305 Views
Last post April 23, 2023, 1451 UTC
by TRI International
0 Replies
235 Views
Last post May 06, 2023, 1747 UTC
by graeme_ncl
1 Replies
407 Views
Last post June 09, 2025, 1927 UTC
by Ray Lalleu
0 Replies
183 Views
Last post April 07, 2023, 1326 UTC
by Ray Lalleu
0 Replies
376 Views
Last post July 03, 2022, 2033 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