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
1870 Views
Last post May 21, 2009, 2029 UTC
by Fansome
2 Replies
1733 Views
Last post July 11, 2016, 1938 UTC
by ka1iic
12 Replies
6017 Views
Last post April 29, 2013, 0109 UTC
by BoomboxDX
0 Replies
1124 Views
Last post August 04, 2014, 0306 UTC
by skeezix
1 Replies
1339 Views
Last post January 19, 2017, 2139 UTC
by Josh
An old recording

Started by jc1974

0 Replies
1515 Views
Last post December 29, 2012, 2109 UTC
by jc1974
0 Replies
993 Views
Last post April 30, 2013, 1246 UTC
by ChrisSmolinski
4 Replies
1432 Views
Last post December 22, 2021, 1102 UTC
by liduck
0 Replies
1537 Views
Last post December 22, 2011, 0100 UTC
by ChrisSmolinski
0 Replies
1821 Views
Last post October 06, 2010, 0739 UTC
by Shortwave_America
0 Replies
906 Views
Last post January 06, 2016, 2116 UTC
by ka1iic
0 Replies
1046 Views
Last post December 22, 2014, 1117 UTC
by atrainradio
5 Replies
3425 Views
Last post January 11, 2013, 0110 UTC
by skeezix
0 Replies
3057 Views
Last post November 19, 2008, 2145 UTC
by Fansome
0 Replies
1151 Views
Last post January 28, 2015, 0339 UTC
by Fansome
0 Replies
1847 Views
Last post September 16, 2015, 1607 UTC
by Oliver
3 Replies
1678 Views
Last post May 22, 2014, 1846 UTC
by audiokaos
0 Replies
1520 Views
Last post September 28, 2017, 0420 UTC
by Zoidberg
0 Replies
818 Views
Last post January 14, 2017, 1432 UTC
by skeezix
0 Replies
683 Views
Last post February 08, 2021, 1439 UTC
by ChrisSmolinski

 

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