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
220 Views
Last post April 08, 2023, 1907 UTC
by Ray Lalleu
2 Replies
411 Views
Last post March 10, 2025, 0942 UTC
by Benoit LEVEQUE
0 Replies
178 Views
Last post December 07, 2024, 1733 UTC
by Ray Lalleu
0 Replies
197 Views
Last post April 08, 2023, 1546 UTC
by Ray Lalleu
0 Replies
216 Views
Last post January 14, 2024, 1411 UTC
by Ray Lalleu
1 Replies
262 Views
Last post November 30, 2024, 2352 UTC
by kris
2 Replies
304 Views
Last post February 17, 2025, 2055 UTC
by dxace1
1 Replies
223 Views
Last post February 09, 2025, 1741 UTC
by kris
0 Replies
177 Views
Last post April 26, 2025, 1729 UTC
by Ray Lalleu
0 Replies
169 Views
Last post March 07, 2025, 1638 UTC
by Ray Lalleu
1 Replies
209 Views
Last post January 25, 2025, 1732 UTC
by dxace1
2 Replies
267 Views
Last post January 02, 2025, 2147 UTC
by Fisherman
1 Replies
316 Views
Last post January 02, 2025, 1413 UTC
by dxace1
1 Replies
259 Views
Last post December 30, 2024, 1008 UTC
by TRI International
0 Replies
190 Views
Last post February 17, 2025, 0807 UTC
by Ray Lalleu
0 Replies
197 Views
Last post February 06, 2025, 1818 UTC
by Ray Lalleu
2 Replies
535 Views
Last post March 10, 2025, 2133 UTC
by kris
0 Replies
337 Views
Last post November 29, 2024, 2016 UTC
by Ray Lalleu
0 Replies
138 Views
Last post November 29, 2024, 1916 UTC
by Ray Lalleu
0 Replies
205 Views
Last post December 10, 2024, 1408 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