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
2 Replies
967 Views
Last post August 22, 2015, 2336 UTC
by Rafman
3 Replies
1164 Views
Last post September 05, 2015, 0030 UTC
by Ron Hunsicker
0 Replies
326 Views
Last post September 11, 2024, 1319 UTC
by Ron Hunsicker
13 Replies
998 Views
Last post March 01, 2025, 2022 UTC
by Sealord
8 Replies
1924 Views
Last post June 23, 2019, 1246 UTC
by ChrisSmolinski
1 Replies
1114 Views
Last post December 26, 2015, 0013 UTC
by slowtrain
3 Replies
1260 Views
Last post January 24, 2019, 0051 UTC
by refmo
6 Replies
937 Views
Last post November 12, 2022, 1536 UTC
by flexoman61
9 Replies
2164 Views
Last post March 20, 2016, 0137 UTC
by MrMomB
7 Replies
1688 Views
Last post July 16, 2016, 1509 UTC
by ChrisSmolinski
3 Replies
1297 Views
Last post January 05, 2016, 0131 UTC
by R4002
7 Replies
639 Views
Last post March 11, 2023, 0153 UTC
by Markokpik
4 Replies
550 Views
Last post July 21, 2024, 1409 UTC
by Sealord
0 Replies
439 Views
Last post July 11, 2020, 0334 UTC
by Chuck54
4 Replies
1007 Views
Last post November 09, 2019, 0332 UTC
by midevil
4 Replies
1054 Views
Last post July 07, 2021, 2151 UTC
by ION Radio
0 Replies
699 Views
Last post July 16, 2019, 1227 UTC
by ChrisSmolinski
2 Replies
696 Views
Last post May 24, 2020, 0432 UTC
by midevil
0 Replies
597 Views
Last post December 30, 2015, 1537 UTC
by ChrisSmolinski
1 Replies
813 Views
Last post January 10, 2016, 2054 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