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
1049 Views
Last post May 30, 2010, 1940 UTC
by ChrisSmolinski
1 Replies
772 Views
Last post August 09, 2015, 0034 UTC
by jFarley
0 Replies
683 Views
Last post March 04, 2019, 1231 UTC
by ChrisSmolinski
0 Replies
175 Views
Last post August 31, 2025, 1927 UTC
by ChrisSmolinski
1 Replies
1543 Views
Last post November 21, 2009, 1940 UTC
by Sealord
0 Replies
548 Views
Last post September 07, 2020, 2234 UTC
by ChrisSmolinski
1 Replies
903 Views
Last post December 04, 2013, 1537 UTC
by Sealord
11 Replies
1499 Views
Last post May 28, 2020, 2217 UTC
by Traveling Wave
3 Replies
540 Views
Last post November 19, 2024, 2135 UTC
by myteaquinn
0 Replies
1084 Views
Last post August 15, 2019, 2007 UTC
by ChrisSmolinski
13 Replies
4151 Views
Last post May 22, 2014, 1055 UTC
by Andrew Yoder
2 Replies
1012 Views
Last post April 23, 2019, 2357 UTC
by PirateSWL
0 Replies
1187 Views
Last post December 25, 2009, 1923 UTC
by ChrisSmolinski
2 Replies
983 Views
Last post January 11, 2016, 2211 UTC
by aurora
7 Replies
1339 Views
Last post October 23, 2020, 2320 UTC
by Quantum Radio
0 Replies
941 Views
Last post May 08, 2015, 1143 UTC
by ChrisSmolinski
0 Replies
756 Views
Last post June 18, 2017, 1713 UTC
by ChrisSmolinski
15 Replies
2909 Views
Last post February 02, 2020, 0524 UTC
by myteaquinn
4 Replies
1153 Views
Last post March 01, 2018, 2257 UTC
by aurora
0 Replies
481 Views
Last post September 20, 2019, 1830 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