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
567 Views
Last post July 21, 2017, 0044 UTC
by ChrisSmolinski
0 Replies
429 Views
Last post December 12, 2023, 2018 UTC
by ChrisSmolinski
0 Replies
1043 Views
Last post November 27, 2014, 0310 UTC
by Kilokat7
0 Replies
1046 Views
Last post November 27, 2014, 0557 UTC
by John Poet
0 Replies
330 Views
Last post November 22, 2023, 2056 UTC
by dxace1
0 Replies
633 Views
Last post July 21, 2017, 1523 UTC
by ChrisSmolinski
0 Replies
479 Views
Last post April 24, 2025, 0106 UTC
by Quasar
0 Replies
809 Views
Last post April 28, 2014, 1202 UTC
by ChrisSmolinski
0 Replies
351 Views
Last post January 22, 2024, 1308 UTC
by ChrisSmolinski
0 Replies
866 Views
Last post July 24, 2013, 1409 UTC
by ChrisSmolinski
0 Replies
797 Views
Last post July 23, 2017, 1456 UTC
by ChrisSmolinski
0 Replies
379 Views
Last post December 08, 2023, 1419 UTC
by ChrisSmolinski
0 Replies
682 Views
Last post July 22, 2017, 1926 UTC
by ChrisSmolinski
0 Replies
396 Views
Last post November 24, 2023, 1803 UTC
by ChrisSmolinski
0 Replies
880 Views
Last post July 29, 2017, 2048 UTC
by ChrisSmolinski
0 Replies
371 Views
Last post November 26, 2023, 2127 UTC
by ChrisSmolinski
0 Replies
1430 Views
Last post December 08, 2014, 0230 UTC
by Rockpicker
0 Replies
330 Views
Last post November 28, 2023, 2351 UTC
by Ray Lalleu
0 Replies
1206 Views
Last post November 24, 2013, 2214 UTC
by ChrisSmolinski
0 Replies
802 Views
Last post June 23, 2017, 1152 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