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
2 Replies
1221 Views
Last post April 07, 2018, 1758 UTC
by Josh
5 Replies
1992 Views
Last post October 13, 2013, 0550 UTC
by SingleSideburn
0 Replies
1917 Views
Last post October 29, 2013, 1838 UTC
by K5KNT
0 Replies
1105 Views
Last post January 22, 2014, 1421 UTC
by K5KNT
1 Replies
1168 Views
Last post October 18, 2013, 0148 UTC
by Fansome
12 Replies
4768 Views
Last post March 11, 2013, 2040 UTC
by Token
4 Replies
2932 Views
Last post November 26, 2016, 0232 UTC
by Token
0 Replies
1280 Views
Last post February 22, 2013, 1740 UTC
by K5KNT
11 Replies
9808 Views
Last post March 14, 2013, 1506 UTC
by K5KNT
0 Replies
2878 Views
Last post June 07, 2008, 1139 UTC
by Justice
5 Replies
2706 Views
Last post August 27, 2019, 2303 UTC
by Josh
2 Replies
1448 Views
Last post May 05, 2021, 0358 UTC
by Teotwaki
0 Replies
1690 Views
Last post February 03, 2022, 2040 UTC
by Josh
2 Replies
1279 Views
Last post December 29, 2022, 1242 UTC
by Pigmeat
6 June 1944

Started by Josh

4 Replies
1918 Views
Last post June 07, 2017, 1456 UTC
by Josh
2 Replies
1661 Views
Last post May 19, 2018, 1731 UTC
by Josh
August Eclipse

Started by Josh

3 Replies
1648 Views
Last post June 17, 2017, 0021 UTC
by PirateSWL
Chinese HAARP

Started by Josh

0 Replies
1148 Views
Last post December 22, 2018, 0101 UTC
by Josh
Swling

Started by Josh

3 Replies
1874 Views
Last post September 10, 2016, 0254 UTC
by Pigmeat
7 Replies
2082 Views
Last post June 28, 2019, 1835 UTC
by Josh

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground House Flag
by MitchellTimeDesigns