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
8 Replies
2788 Views
Last post June 23, 2010, 0154 UTC
by SW-J
8 Replies
2788 Views
Last post October 13, 2013, 1832 UTC
by ChrisLobdell
4 Replies
2788 Views
Last post September 14, 2016, 2359 UTC
by ChrisSmolinski
18 Replies
2788 Views
Last post March 14, 2021, 0148 UTC
by ~SIGINT~
22 Replies
2787 Views
Last post October 30, 2022, 0039 UTC
by tonehammer
13 Replies
2786 Views
Last post December 24, 2023, 2130 UTC
by Rich D
0 Replies
2786 Views
Last post November 02, 2012, 2328 UTC
by rdla4
26 Replies
2786 Views
Last post September 11, 2022, 0246 UTC
by Zoidberg
10 Replies
2786 Views
Last post February 08, 2014, 2334 UTC
by Gino Italy
13 Replies
2785 Views
Last post September 05, 2015, 0149 UTC
by Mentholyptus
10 Replies
2785 Views
Last post September 06, 2013, 0138 UTC
by curious george
0 Replies
2785 Views
Last post October 30, 2016, 1525 UTC
by ChrisSmolinski
9 Replies
2784 Views
Last post April 02, 2017, 1432 UTC
by ChrisSmolinski
4 Replies
2784 Views
Last post November 14, 2013, 1306 UTC
by ChrisSmolinski
9 Replies
2784 Views
Last post August 05, 2017, 1544 UTC
by ChrisSmolinski
13 Replies
2784 Views
Last post April 15, 2016, 0106 UTC
by Rafman
9 Replies
2784 Views
Last post September 30, 2017, 2327 UTC
by Ray Lalleu
9 Replies
2783 Views
Last post April 20, 2019, 1503 UTC
by ChrisSmolinski
10 Replies
2783 Views
Last post October 18, 2014, 1502 UTC
by ChrisSmolinski
7 Replies
2783 Views
Last post February 17, 2014, 1746 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 T-Shirt
by MitchellTimeDesigns