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
10 Replies
777 Views
Last post December 25, 2024, 1948 UTC
by Kestrel
7 Replies
995 Views
Last post December 25, 2024, 1431 UTC
by Andrew Yoder
13 Replies
1392 Views
Last post December 25, 2024, 1346 UTC
by refmo
12 Replies
821 Views
Last post December 25, 2024, 0622 UTC
by PietariDX
5 Replies
829 Views
Last post December 25, 2024, 0530 UTC
by N2MLP
14 Replies
1067 Views
Last post December 25, 2024, 0442 UTC
by caodwolf
5 Replies
637 Views
Last post December 25, 2024, 0431 UTC
by dxace1
0 Replies
306 Views
Last post December 25, 2024, 0419 UTC
by Radiouser
14 Replies
1619 Views
Last post December 25, 2024, 0341 UTC
by myteaquinn
0 Replies
316 Views
Last post December 25, 2024, 0327 UTC
by myteaquinn
0 Replies
310 Views
Last post December 25, 2024, 0325 UTC
by myteaquinn
6 Replies
415 Views
Last post December 25, 2024, 0204 UTC
by Charlie_Dont_Surf
12 Replies
830 Views
Last post December 25, 2024, 0039 UTC
by J. Carlos Pérez Montero
16 Replies
1092 Views
Last post December 25, 2024, 0033 UTC
by J. Carlos Pérez Montero
17 Replies
1708 Views
Last post December 25, 2024, 0019 UTC
by J. Carlos Pérez Montero
15 Replies
1515 Views
Last post December 24, 2024, 2328 UTC
by Andrew Yoder
16 Replies
1139 Views
Last post December 24, 2024, 2247 UTC
by ZFT
2 Replies
305 Views
Last post December 24, 2024, 2243 UTC
by ChrisSmolinski
11 Replies
789 Views
Last post December 24, 2024, 2225 UTC
by Radiouser
2 Replies
544 Views
Last post December 24, 2024, 1739 UTC
by Ct Yankee

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns