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
34 Replies
7021 Views
Last post April 28, 2019, 0148 UTC
by BDM
2 Replies
409 Views
Last post August 22, 2024, 2012 UTC
by Andrew Yoder
0 Replies
420 Views
Last post March 03, 2018, 1519 UTC
by ChrisSmolinski
2 Replies
1187 Views
Last post December 10, 2014, 0116 UTC
by jFarley
3 Replies
923 Views
Last post September 21, 2019, 1928 UTC
by blw
1 Replies
516 Views
Last post December 22, 2018, 1630 UTC
by aurora
11 Replies
869 Views
Last post September 02, 2023, 2345 UTC
by Shortwave_Listener
4 Replies
1742 Views
Last post March 04, 2012, 2156 UTC
by S. McArdle
17 Replies
5741 Views
Last post October 13, 2013, 0257 UTC
by Zane
0 Replies
1105 Views
Last post October 21, 2011, 1402 UTC
by ChrisSmolinski
0 Replies
678 Views
Last post November 26, 2015, 1927 UTC
by ChrisSmolinski
11 Replies
3527 Views
Last post April 19, 2017, 0248 UTC
by Zoidberg
1 Replies
658 Views
Last post May 09, 2021, 1147 UTC
by Bali_Frank
11 Replies
2958 Views
Last post December 17, 2017, 2002 UTC
by myteaquinn
0 Replies
804 Views
Last post August 15, 2015, 1620 UTC
by ChrisSmolinski
2 Replies
660 Views
Last post May 01, 2020, 2257 UTC
by Bali_Frank
1 Replies
1648 Views
Last post October 20, 2008, 0943 UTC
by Fansome
2 Replies
1756 Views
Last post July 27, 2016, 0517 UTC
by Pigmeat
2 Replies
1106 Views
Last post August 10, 2013, 1635 UTC
by jFarley
0 Replies
505 Views
Last post May 17, 2018, 2236 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