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
3 Replies
819 Views
Last post February 28, 2021, 0333 UTC
by bcoggs
0 Replies
819 Views
Last post March 24, 2013, 1332 UTC
by ChrisSmolinski
0 Replies
819 Views
Last post April 21, 2013, 1837 UTC
by ChrisSmolinski
7 Replies
819 Views
Last post January 06, 2025, 0222 UTC
by Robot Matrix
0 Replies
819 Views
Last post October 12, 2013, 1438 UTC
by ChrisSmolinski
5 Replies
819 Views
Last post March 15, 2022, 2221 UTC
by Chuck54
1 Replies
819 Views
Last post September 21, 2017, 1841 UTC
by ChrisSmolinski
3 Replies
819 Views
Last post November 01, 2023, 1933 UTC
by ~SIGINT~
4 Replies
820 Views
Last post March 06, 2021, 2018 UTC
by Ray Lalleu
4 Replies
820 Views
Last post March 21, 2021, 0125 UTC
by ~SIGINT~
4 Replies
820 Views
Last post December 03, 2022, 2234 UTC
by refmo
1 Replies
820 Views
Last post July 31, 2019, 1147 UTC
by ChrisSmolinski
0 Replies
820 Views
Last post December 24, 2015, 1349 UTC
by flexoman61
1 Replies
820 Views
Last post November 27, 2012, 0011 UTC
by ChrisSmolinski
0 Replies
820 Views
Last post June 25, 2013, 1401 UTC
by ChrisSmolinski
1 Replies
820 Views
Last post June 25, 2013, 1940 UTC
by jFarley
0 Replies
820 Views
Last post August 15, 2015, 1620 UTC
by ChrisSmolinski
0 Replies
820 Views
Last post December 22, 2015, 0141 UTC
by refmo
5 Replies
820 Views
Last post April 17, 2025, 0151 UTC
by Molvania Poacher
4 Replies
820 Views
Last post September 19, 2021, 1812 UTC
by Pravotorov

 

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