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
0 Replies
572 Views
Last post February 27, 2022, 0546 UTC
by Edgar Souse
3 Replies
830 Views
Last post August 19, 2023, 2057 UTC
by Edgar Souse
3 Replies
1062 Views
Last post October 09, 2020, 1633 UTC
by skyman
3 Replies
1698 Views
Last post February 26, 2016, 1556 UTC
by EliteData
1 Replies
2121 Views
Last post February 05, 2016, 1926 UTC
by flexoman61
0 Replies
551 Views
Last post March 11, 2022, 0128 UTC
by Erik Mattson
0 Replies
524 Views
Last post February 26, 2022, 1017 UTC
by Ethernut
1 Replies
658 Views
Last post March 29, 2022, 1919 UTC
by kris
6 Replies
1235 Views
Last post November 29, 2022, 0419 UTC
by Pigmeat
1 Replies
622 Views
Last post November 30, 2022, 1316 UTC
by Bali_Frank
3 Replies
1875 Views
Last post April 24, 2012, 1318 UTC
by ETM71
CW 6933 2115 01/03/2013

Started by ETM71

4 Replies
2316 Views
Last post January 04, 2013, 1546 UTC
by Token
1 Replies
1304 Views
Last post January 11, 2013, 0007 UTC
by ChrisSmolinski
1 Replies
1466 Views
Last post January 11, 2013, 0117 UTC
by jFarley
2 Replies
1664 Views
Last post January 22, 2012, 0256 UTC
by Porter
6946kHz? wtf?

Started by ETM71

1 Replies
1565 Views
Last post January 30, 2012, 2359 UTC
by ChrisSmolinski
6718kHz - What is this???

Started by ETM71

10 Replies
5088 Views
Last post January 07, 2011, 2010 UTC
by PresentedIn4D
2 Replies
2114 Views
Last post March 17, 2012, 0254 UTC
by ETM71
0 Replies
1552 Views
Last post May 18, 2014, 2330 UTC
by Evil Elvis
0 Replies
1072 Views
Last post January 25, 2019, 2231 UTC
by Exo

 

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