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
13 Replies
445 Views
Last post March 29, 2025, 0048 UTC
by William Hassig
2 Replies
220 Views
Last post March 28, 2025, 2216 UTC
by Radiouser
13 Replies
634 Views
Last post March 28, 2025, 2214 UTC
by Kestrel
14 Replies
931 Views
Last post March 28, 2025, 2030 UTC
by Sealord
8 Replies
695 Views
Last post March 28, 2025, 1607 UTC
by Sealord
10 Replies
676 Views
Last post March 28, 2025, 1327 UTC
by Ron Hunsicker
3 Replies
288 Views
Last post March 28, 2025, 1213 UTC
by Andrew Yoder
2 Replies
290 Views
Last post March 28, 2025, 0313 UTC
by Sarge94
3 Replies
300 Views
Last post March 28, 2025, 0049 UTC
by Quasar
6 Replies
404 Views
Last post March 27, 2025, 1915 UTC
by hsmith77
9 Replies
516 Views
Last post March 27, 2025, 1850 UTC
by Tony_Pavick
8 Replies
610 Views
Last post March 27, 2025, 0215 UTC
by Markokpik
9 Replies
600 Views
Last post March 27, 2025, 0126 UTC
by blw
15 Replies
984 Views
Last post March 27, 2025, 0106 UTC
by Quasar
2 Replies
363 Views
Last post March 26, 2025, 2152 UTC
by Radiouser
2 Replies
302 Views
Last post March 26, 2025, 2145 UTC
by hsmith77
5 Replies
424 Views
Last post March 26, 2025, 2113 UTC
by dxwingr
7 Replies
497 Views
Last post March 26, 2025, 2112 UTC
by dxwingr
5 Replies
537 Views
Last post March 26, 2025, 0203 UTC
by Molvania Poacher
0 Replies
211 Views
Last post March 26, 2025, 0135 UTC
by Skipmuck

 

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