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
799 Views
Last post September 02, 2023, 0936 UTC
by TRI International
0 Replies
993 Views
Last post August 28, 2023, 0939 UTC
by TRI International
0 Replies
1053 Views
Last post August 26, 2023, 0951 UTC
by TRI International
0 Replies
967 Views
Last post August 26, 2023, 0939 UTC
by TRI International
1 Replies
1122 Views
Last post August 24, 2023, 1629 UTC
by Shortwave_Listener
0 Replies
1009 Views
Last post August 24, 2023, 0823 UTC
by Daniel Wyllyans
0 Replies
883 Views
Last post August 20, 2023, 1012 UTC
by TRI International
0 Replies
753 Views
Last post August 16, 2023, 0057 UTC
by Lucio
0 Replies
1019 Views
Last post August 05, 2023, 1004 UTC
by Lucio
0 Replies
777 Views
Last post July 31, 2023, 2218 UTC
by Lucio
0 Replies
756 Views
Last post July 27, 2023, 2306 UTC
by Lucio
0 Replies
760 Views
Last post July 27, 2023, 2041 UTC
by Lucio
0 Replies
772 Views
Last post July 19, 2023, 2118 UTC
by Lucio
0 Replies
756 Views
Last post July 19, 2023, 0037 UTC
by Lucio
0 Replies
775 Views
Last post July 16, 2023, 0255 UTC
by Shortwave_Listener
9 Replies
1595 Views
Last post July 15, 2023, 1715 UTC
by ChrisSmolinski
1 Replies
843 Views
Last post July 15, 2023, 0255 UTC
by N2MLP
0 Replies
741 Views
Last post July 15, 2023, 0127 UTC
by Shortwave_Listener
2 Replies
1035 Views
Last post July 12, 2023, 0031 UTC
by ChrisLobdell
2 Replies
1129 Views
Last post July 10, 2023, 1734 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 House Flag
by MitchellTimeDesigns