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
2 Replies
1151 Views
Last post September 26, 2023, 1225 UTC
by BoomboxDX
0 Replies
629 Views
Last post September 04, 2023, 1842 UTC
by ThaDood
0 Replies
763 Views
Last post August 19, 2023, 1834 UTC
by ThaDood
1 Replies
765 Views
Last post July 30, 2023, 0212 UTC
by ~SIGINT~
4 Replies
977 Views
Last post July 02, 2023, 1954 UTC
by Pigmeat
3 Replies
1054 Views
Last post June 25, 2023, 1935 UTC
by ThaDood
0 Replies
602 Views
Last post June 25, 2023, 1614 UTC
by Grinch
0 Replies
598 Views
Last post June 05, 2023, 1746 UTC
by ThaDood
0 Replies
747 Views
Last post May 18, 2023, 1759 UTC
by ThaDood
0 Replies
654 Views
Last post May 13, 2023, 1626 UTC
by Traveling Wave
1 Replies
904 Views
Last post April 30, 2023, 1718 UTC
by redhat
3 Replies
1397 Views
Last post April 10, 2023, 1649 UTC
by Shortwave_Listener
3 Replies
1552 Views
Last post March 17, 2023, 1902 UTC
by Josh
1 Replies
1101 Views
Last post February 28, 2023, 1425 UTC
by Pigmeat
5 Replies
1517 Views
Last post February 17, 2023, 0056 UTC
by PIGS KNUCKLES
3 Replies
1773 Views
Last post February 09, 2023, 1758 UTC
by MDK2
2 Replies
1001 Views
Last post January 23, 2023, 1935 UTC
by ThaDood
1 Replies
949 Views
Last post January 16, 2023, 2118 UTC
by Traveling Wave
2 Replies
1103 Views
Last post January 11, 2023, 2255 UTC
by Traveling Wave
2 Replies
1175 Views
Last post December 27, 2022, 1810 UTC
by Polar Bear

 

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