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
1 Replies
329 Views
Last post December 05, 2024, 1651 UTC
by Radiouser
2 Replies
330 Views
Last post November 05, 2024, 2209 UTC
by Radiouser
0 Replies
330 Views
Last post December 11, 2022, 1420 UTC
by Skipmuck
1 Replies
331 Views
Last post June 17, 2025, 1125 UTC
by Molvania Poacher
1 Replies
331 Views
Last post December 28, 2024, 0336 UTC
by Radiouser
0 Replies
332 Views
Last post April 10, 2025, 0901 UTC
by Benoit LEVEQUE
1 Replies
333 Views
Last post November 27, 2024, 1149 UTC
by Skipmuck
0 Replies
333 Views
Last post March 31, 2024, 0331 UTC
by myteaquinn
0 Replies
333 Views
Last post December 13, 2024, 0245 UTC
by Radiouser
1 Replies
334 Views
Last post April 27, 2025, 1345 UTC
by Benoit LEVEQUE
0 Replies
334 Views
Last post February 25, 2023, 0303 UTC
by Bali_Frank
0 Replies
334 Views
Last post October 28, 2024, 0327 UTC
by Molvania Poacher
0 Replies
334 Views
Last post December 18, 2023, 1652 UTC
by Ct Yankee
0 Replies
335 Views
Last post December 14, 2024, 1458 UTC
by Radiouser
0 Replies
335 Views
Last post November 18, 2024, 1219 UTC
by Ct Yankee
0 Replies
335 Views
Last post March 02, 2023, 1629 UTC
by Shortwave_Listener
1 Replies
337 Views
Last post June 20, 2025, 0458 UTC
by shadypyro
0 Replies
338 Views
Last post December 16, 2024, 0425 UTC
by Radiouser
0 Replies
338 Views
Last post November 18, 2023, 1340 UTC
by TRI International
0 Replies
338 Views
Last post June 05, 2024, 1150 UTC
by ChrisSmolinski

 

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