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
4 Replies
1223 Views
Last post October 17, 2021, 1840 UTC
by ulx2
2 Replies
582 Views
Last post October 02, 2021, 1839 UTC
by kris
3 Replies
591 Views
Last post October 10, 2021, 1805 UTC
by F-10255
1 Replies
493 Views
Last post January 07, 2022, 1740 UTC
by kris
1 Replies
452 Views
Last post February 05, 2022, 1849 UTC
by kris
1 Replies
450 Views
Last post January 21, 2022, 2123 UTC
by kris
0 Replies
375 Views
Last post February 26, 2022, 1957 UTC
by Ray Lalleu
2 Replies
619 Views
Last post April 09, 2022, 2349 UTC
by Shortwave_Listener
1 Replies
477 Views
Last post October 25, 2021, 2246 UTC
by Ray Lalleu
3 Replies
840 Views
Last post December 12, 2021, 0040 UTC
by kris
0 Replies
352 Views
Last post July 22, 2022, 1951 UTC
by kris
3 Replies
765 Views
Last post October 19, 2019, 2121 UTC
by Skipmuck
0 Replies
395 Views
Last post August 09, 2019, 1635 UTC
by Ray Lalleu
1 Replies
427 Views
Last post November 01, 2021, 1507 UTC
by Bali_Frank
2 Replies
706 Views
Last post May 10, 2019, 1627 UTC
by dxace1
2 Replies
719 Views
Last post March 10, 2019, 1825 UTC
by dxace1
0 Replies
452 Views
Last post June 09, 2019, 1019 UTC
by Ray Lalleu
0 Replies
452 Views
Last post August 10, 2019, 2015 UTC
by Ray Lalleu
0 Replies
1157 Views
Last post April 23, 2016, 1811 UTC
by FOX
1 Replies
241 Views
Last post September 30, 2024, 1944 UTC
by EagleWave

 

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