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
8 Replies
669 Views
Last post August 26, 2023, 0105 UTC
by Markokpik
2 Replies
344 Views
Last post August 26, 2023, 0100 UTC
by N2MLP
13 Replies
1079 Views
Last post August 26, 2023, 0043 UTC
by Rob.
0 Replies
619 Views
Last post August 25, 2023, 1946 UTC
by ChrisSmolinski
7 Replies
992 Views
Last post August 25, 2023, 0329 UTC
by osiris
4 Replies
579 Views
Last post August 25, 2023, 0207 UTC
by myteaquinn
10 Replies
913 Views
Last post August 25, 2023, 0143 UTC
by Markokpik
9 Replies
909 Views
Last post August 24, 2023, 2231 UTC
by flexoman61
1 Replies
313 Views
Last post August 24, 2023, 2105 UTC
by flexoman61
4 Replies
675 Views
Last post August 24, 2023, 1924 UTC
by ChrisSmolinski
0 Replies
279 Views
Last post August 24, 2023, 1843 UTC
by ChrisSmolinski
17 Replies
1583 Views
Last post August 24, 2023, 1550 UTC
by Ron Hunsicker
1 Replies
534 Views
Last post August 23, 2023, 1616 UTC
by Ct Yankee
2 Replies
520 Views
Last post August 23, 2023, 0219 UTC
by Ron Hunsicker
8 Replies
900 Views
Last post August 23, 2023, 0031 UTC
by Ron Hunsicker
1 Replies
487 Views
Last post August 23, 2023, 0028 UTC
by Ron Hunsicker
2 Replies
400 Views
Last post August 22, 2023, 2254 UTC
by Shortwave_Listener
0 Replies
281 Views
Last post August 22, 2023, 1648 UTC
by ChrisSmolinski
0 Replies
274 Views
Last post August 22, 2023, 1307 UTC
by ChrisSmolinski
1 Replies
440 Views
Last post August 22, 2023, 0116 UTC
by Grumpy Grandpa

 

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