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
408 Views
Last post October 23, 2023, 1937 UTC
by europirate
1 Replies
408 Views
Last post March 06, 2023, 2155 UTC
by europirate
0 Replies
408 Views
Last post June 14, 2023, 2125 UTC
by m3ozp1
0 Replies
408 Views
Last post January 04, 2024, 1151 UTC
by TRI International
0 Replies
407 Views
Last post September 22, 2022, 2039 UTC
by Ray Lalleu
0 Replies
407 Views
Last post June 17, 2023, 2146 UTC
by m3ozp1
1 Replies
407 Views
Last post November 19, 2022, 2312 UTC
by kris
0 Replies
407 Views
Last post June 18, 2023, 2114 UTC
by europirate
0 Replies
406 Views
Last post August 25, 2022, 2030 UTC
by Ray Lalleu
0 Replies
406 Views
Last post October 30, 2022, 2241 UTC
by Ronald_Mullis
0 Replies
406 Views
Last post August 13, 2023, 0957 UTC
by TRI International
1 Replies
406 Views
Last post December 12, 2023, 2107 UTC
by Mick Boyle
0 Replies
405 Views
Last post October 28, 2022, 2008 UTC
by kris
1 Replies
405 Views
Last post February 02, 2023, 2201 UTC
by ralf_bender
1 Replies
404 Views
Last post April 08, 2023, 2155 UTC
by Ray Lalleu
1 Replies
404 Views
Last post November 06, 2022, 1952 UTC
by Shortwave_Listener
0 Replies
404 Views
Last post August 13, 2023, 0924 UTC
by TRI International
1 Replies
404 Views
Last post May 12, 2023, 2246 UTC
by kris
0 Replies
404 Views
Last post March 25, 2023, 2116 UTC
by EagleWave
0 Replies
403 Views
Last post April 04, 2025, 2347 UTC
by Mick Boyle

 

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