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
5 Replies
796 Views
Last post February 01, 2025, 0225 UTC
by N2MLP
22 Replies
2294 Views
Last post February 01, 2025, 0224 UTC
by intellman
4 Replies
1010 Views
Last post January 31, 2025, 2244 UTC
by Andrew Yoder
7 Replies
1953 Views
Last post January 31, 2025, 2203 UTC
by ChrisSmolinski
14 Replies
1437 Views
Last post January 31, 2025, 2101 UTC
by ChrisSmolinski
18 Replies
2641 Views
Last post January 31, 2025, 1421 UTC
by Ron Hunsicker
1 Replies
679 Views
Last post January 31, 2025, 0151 UTC
by Professor
4 Replies
668 Views
Last post January 31, 2025, 0114 UTC
by Radiouser
3 Replies
541 Views
Last post January 30, 2025, 2258 UTC
by hflstnr
5 Replies
780 Views
Last post January 30, 2025, 0242 UTC
by Radiouser
10 Replies
1127 Views
Last post January 30, 2025, 0141 UTC
by Molvania Poacher
6 Replies
818 Views
Last post January 29, 2025, 0316 UTC
by Markokpik
9 Replies
1011 Views
Last post January 29, 2025, 0228 UTC
by Markokpik
0 Replies
475 Views
Last post January 29, 2025, 0041 UTC
by Shortwave_Listener
5 Replies
738 Views
Last post January 28, 2025, 2334 UTC
by Doc Roe
8 Replies
1227 Views
Last post January 28, 2025, 2116 UTC
by hflstnr
5 Replies
697 Views
Last post January 28, 2025, 2026 UTC
by Treehouse SWL
6 Replies
1000 Views
Last post January 28, 2025, 1215 UTC
by ChrisSmolinski
6 Replies
1240 Views
Last post January 27, 2025, 2233 UTC
by dxwingr
9 Replies
1607 Views
Last post January 27, 2025, 2208 UTC
by flexoman61

 

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