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
862 Views
Last post February 10, 2025, 2217 UTC
by Andrew Yoder
10 Replies
856 Views
Last post February 11, 2025, 0028 UTC
by hflstnr
12 Replies
893 Views
Last post February 11, 2025, 0140 UTC
by Markokpik
0 Replies
406 Views
Last post February 11, 2025, 0216 UTC
by Shortwave_Listener
3 Replies
751 Views
Last post February 11, 2025, 1250 UTC
by ChrisSmolinski
5 Replies
565 Views
Last post February 11, 2025, 1926 UTC
by ChrisSmolinski
6 Replies
763 Views
Last post February 11, 2025, 1955 UTC
by hsmith77
3 Replies
935 Views
Last post February 12, 2025, 0001 UTC
by JustGreg
0 Replies
648 Views
Last post February 12, 2025, 0228 UTC
by Shortwave_Listener
5 Replies
949 Views
Last post February 12, 2025, 1418 UTC
by ChrisLobdell
0 Replies
336 Views
Last post February 12, 2025, 2120 UTC
by ChrisSmolinski
1 Replies
596 Views
Last post February 12, 2025, 2254 UTC
by DangerKitty
6 Replies
762 Views
Last post February 13, 2025, 0000 UTC
by Chuck54
1 Replies
388 Views
Last post February 13, 2025, 0152 UTC
by Sky Waves
0 Replies
366 Views
Last post February 13, 2025, 0159 UTC
by myteaquinn
0 Replies
559 Views
Last post February 13, 2025, 0421 UTC
by Professor
0 Replies
315 Views
Last post February 13, 2025, 1238 UTC
by ChrisSmolinski
0 Replies
384 Views
Last post February 13, 2025, 1256 UTC
by ChrisSmolinski
9 Replies
845 Views
Last post February 13, 2025, 2203 UTC
by Chuck54
7 Replies
686 Views
Last post February 13, 2025, 2308 UTC
by dxace1

 

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