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
7 Replies
732 Views
Last post July 06, 2025, 0222 UTC
by n2avh
2 Replies
364 Views
Last post July 05, 2025, 2331 UTC
by flexoman61
6 Replies
803 Views
Last post July 05, 2025, 1559 UTC
by Tony_Pavick
5 Replies
634 Views
Last post July 05, 2025, 1407 UTC
by Big Badfish Al
5 Replies
700 Views
Last post July 05, 2025, 1149 UTC
by ChrisSmolinski
0 Replies
215 Views
Last post July 05, 2025, 1129 UTC
by ChrisSmolinski
13 Replies
738 Views
Last post July 05, 2025, 0616 UTC
by DXerKen
1 Replies
301 Views
Last post July 05, 2025, 0508 UTC
by DXerKen
2 Replies
339 Views
Last post July 05, 2025, 0442 UTC
by Treehouse SWL
20 Replies
1477 Views
Last post July 05, 2025, 0432 UTC
by Zoidberg
2 Replies
399 Views
Last post July 05, 2025, 0341 UTC
by Charlie_Dont_Surf
9 Replies
291 Views
Last post July 05, 2025, 0246 UTC
by hflstnr
13 Replies
826 Views
Last post July 05, 2025, 0158 UTC
by William Hassig
5 Replies
440 Views
Last post July 05, 2025, 0148 UTC
by DXrafaelcolDX
10 Replies
477 Views
Last post July 05, 2025, 0133 UTC
by Markokpik
12 Replies
619 Views
Last post July 05, 2025, 0107 UTC
by DXerKen
9 Replies
561 Views
Last post July 04, 2025, 2333 UTC
by circuitmike
0 Replies
196 Views
Last post July 04, 2025, 2239 UTC
by DangerKitty
5 Replies
645 Views
Last post July 04, 2025, 1548 UTC
by Big Badfish Al
4 Replies
412 Views
Last post July 04, 2025, 1521 UTC
by myteaquinn

 

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