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
182 Views
Last post March 18, 2025, 2136 UTC
by Ray Lalleu
0 Replies
134 Views
Last post May 19, 2025, 1715 UTC
by Ray Lalleu
0 Replies
311 Views
Last post March 18, 2020, 2000 UTC
by Ray Lalleu
0 Replies
355 Views
Last post April 24, 2020, 2246 UTC
by Ray Lalleu
0 Replies
623 Views
Last post August 29, 2019, 2216 UTC
by Ray Lalleu
0 Replies
297 Views
Last post November 01, 2021, 2330 UTC
by Ray Lalleu
0 Replies
308 Views
Last post February 09, 2021, 1742 UTC
by Ray Lalleu
0 Replies
386 Views
Last post December 02, 2021, 1611 UTC
by Skipmuck
0 Replies
374 Views
Last post October 14, 2019, 1919 UTC
by Ray Lalleu
0 Replies
286 Views
Last post April 10, 2022, 1854 UTC
by Ray Lalleu
0 Replies
178 Views
Last post March 14, 2024, 2109 UTC
by Ray Lalleu
0 Replies
216 Views
Last post February 19, 2023, 1819 UTC
by Shortwave_Listener
0 Replies
330 Views
Last post January 22, 2022, 2217 UTC
by Ray Lalleu
0 Replies
292 Views
Last post January 26, 2021, 0946 UTC
by Ray Lalleu
0 Replies
334 Views
Last post April 05, 2022, 2200 UTC
by Ray Lalleu
0 Replies
232 Views
Last post November 10, 2023, 2235 UTC
by Ray Lalleu
0 Replies
153 Views
Last post April 13, 2024, 1951 UTC
by Ray Lalleu
0 Replies
182 Views
Last post April 08, 2023, 2049 UTC
by Shortwave_Listener
0 Replies
285 Views
Last post August 26, 2022, 1720 UTC
by Shortwave_Listener
0 Replies
220 Views
Last post April 15, 2023, 2147 UTC
by Shortwave_Listener

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns