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
627 Views
Last post February 17, 2025, 0159 UTC
by myteaquinn
4 Replies
845 Views
Last post February 22, 2025, 0407 UTC
by myteaquinn
4 Replies
721 Views
Last post February 28, 2025, 1319 UTC
by ChrisSmolinski
4 Replies
924 Views
Last post February 28, 2025, 1946 UTC
by Ron Hunsicker
4 Replies
805 Views
Last post March 01, 2025, 1600 UTC
by Ron Hunsicker
4 Replies
698 Views
Last post March 02, 2025, 1522 UTC
by N2MLP
4 Replies
1016 Views
Last post March 04, 2025, 1435 UTC
by Sarge94
4 Replies
757 Views
Last post March 07, 2025, 2011 UTC
by ChrisSmolinski
4 Replies
862 Views
Last post March 09, 2025, 1329 UTC
by Radio Star
4 Replies
764 Views
Last post March 09, 2025, 1353 UTC
by Sarge94
4 Replies
4186 Views
Last post March 12, 2025, 1228 UTC
by Sealord
4 Replies
963 Views
Last post March 18, 2025, 2032 UTC
by Ct Yankee
4 Replies
1453 Views
Last post March 20, 2025, 0134 UTC
by John Poet
4 Replies
897 Views
Last post March 24, 2025, 1506 UTC
by N2MLP
4 Replies
954 Views
Last post March 25, 2025, 1042 UTC
by ChrisSmolinski
4 Replies
1135 Views
Last post March 30, 2025, 0140 UTC
by Radiouser
4 Replies
2047 Views
Last post March 30, 2025, 1747 UTC
by N2MLP
4 Replies
1684 Views
Last post April 01, 2025, 0400 UTC
by canswl
4 Replies
881 Views
Last post April 02, 2025, 1146 UTC
by Radio Star
4 Replies
766 Views
Last post April 02, 2025, 2127 UTC
by hflstnr

 

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