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
791 Views
Last post December 25, 2011, 2314 UTC
by Sealord
2 Replies
791 Views
Last post January 14, 2017, 2207 UTC
by refmo
4 Replies
791 Views
Last post December 07, 2021, 0042 UTC
by UncleJohn
5 Replies
791 Views
Last post November 06, 2024, 0557 UTC
by dxace1
1 Replies
791 Views
Last post August 18, 2019, 0346 UTC
by refmo
5 Replies
790 Views
Last post March 26, 2021, 1955 UTC
by Andrew Yoder
1 Replies
790 Views
Last post May 21, 2014, 1049 UTC
by ChrisSmolinski
6 Replies
790 Views
Last post April 29, 2023, 1245 UTC
by hammarhead
4 Replies
790 Views
Last post June 06, 2020, 0428 UTC
by Molvania Poacher
0 Replies
790 Views
Last post March 20, 2014, 1213 UTC
by ChrisSmolinski
0 Replies
790 Views
Last post September 13, 2015, 0141 UTC
by Mentholyptus
0 Replies
790 Views
Last post December 05, 2013, 2334 UTC
by ChrisSmolinski
0 Replies
790 Views
Last post January 24, 2015, 2018 UTC
by ChrisSmolinski
0 Replies
790 Views
Last post October 12, 2013, 1427 UTC
by ChrisSmolinski
0 Replies
790 Views
Last post September 28, 2013, 2303 UTC
by jFarley
7 Replies
790 Views
Last post February 08, 2025, 0211 UTC
by Quasar
3 Replies
790 Views
Last post June 03, 2019, 0952 UTC
by ChrisSmolinski
7 Replies
790 Views
Last post January 08, 2023, 0047 UTC
by myteaquinn
5 Replies
790 Views
Last post January 26, 2024, 1628 UTC
by ~SIGINT~
1 Replies
790 Views
Last post June 25, 2017, 2312 UTC
by PirateSWL

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns