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
19 Replies
1602 Views
Last post August 27, 2023, 0118 UTC
by blw
8 Replies
665 Views
Last post August 27, 2023, 0010 UTC
by MDK2
12 Replies
1201 Views
Last post August 27, 2023, 0005 UTC
by flexoman61
1 Replies
314 Views
Last post August 26, 2023, 2340 UTC
by N2MLP
1 Replies
317 Views
Last post August 26, 2023, 2256 UTC
by N2MLP
1 Replies
314 Views
Last post August 26, 2023, 2253 UTC
by N2MLP
4 Replies
460 Views
Last post August 26, 2023, 2231 UTC
by Sky Waves
1 Replies
711 Views
Last post August 26, 2023, 1354 UTC
by Ct Yankee
3 Replies
552 Views
Last post August 26, 2023, 1237 UTC
by hammarhead
0 Replies
270 Views
Last post August 26, 2023, 1055 UTC
by TRI International
3 Replies
604 Views
Last post August 26, 2023, 0424 UTC
by IrvingtonVFD43
6 Replies
559 Views
Last post August 26, 2023, 0311 UTC
by dxace1
12 Replies
907 Views
Last post August 26, 2023, 0250 UTC
by Grounded_Grid
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
1081 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
994 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
917 Views
Last post August 25, 2023, 0143 UTC
by Markokpik

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground House Flag
by MitchellTimeDesigns