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 permissable in your locale.

Subject / Started by Last post
7 Replies
34959 Views
Last post February 07, 2023, 0836 UTC
by Catflap
5 Replies
12054 Views
Last post January 05, 2021, 0939 UTC
by Max
0 Replies
23 Views
Last post Today at 16:43
by R4002
25 Replies
5781 Views
Last post February 05, 2023, 1355 UTC
by R4002
1 Replies
110 Views
Last post February 03, 2023, 1038 UTC
by Catflap
4 Replies
103 Views
Last post February 02, 2023, 2301 UTC
by Grinch
2 Replies
190 Views
Last post February 02, 2023, 2232 UTC
by Pigmeat
0 Replies
57 Views
Last post January 31, 2023, 0127 UTC
by Paul Turkk
1 Replies
60 Views
Last post January 29, 2023, 1729 UTC
by manfred
1 Replies
117 Views
Last post January 23, 2023, 1301 UTC
by Grinch
0 Replies
78 Views
Last post January 20, 2023, 1201 UTC
by R4002
0 Replies
80 Views
Last post January 17, 2023, 1843 UTC
by ButchKidd
1 Replies
82 Views
Last post January 16, 2023, 1740 UTC
by ButchKidd
0 Replies
66 Views
Last post January 16, 2023, 1643 UTC
by RobRich
1 Replies
100 Views
Last post January 16, 2023, 1515 UTC
by Pigmeat
0 Replies
75 Views
Last post January 15, 2023, 2030 UTC
by radiogaga
1 Replies
100 Views
Last post January 15, 2023, 1913 UTC
by vlf2hf
2 Replies
119 Views
Last post January 14, 2023, 2319 UTC
by HF DXER
27.665 USB

Started by HF DXER

0 Replies
68 Views
Last post January 14, 2023, 1801 UTC
by HF DXER
0 Replies
89 Views
Last post January 13, 2023, 1403 UTC
by R4002

 

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