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
1565 Views
Last post January 15, 2024, 1348 UTC
by RobRich
0 Replies
977 Views
Last post March 22, 2023, 0302 UTC
by RobRich
1 Replies
1480 Views
Last post February 01, 2024, 0153 UTC
by ~SIGINT~
0 Replies
1083 Views
Last post March 22, 2023, 0308 UTC
by RobRich
0 Replies
1311 Views
Last post February 01, 2024, 0405 UTC
by RobRich
0 Replies
1433 Views
Last post February 01, 2024, 0422 UTC
by RobRich
2 Replies
2080 Views
Last post February 04, 2025, 2301 UTC
by Robot Matrix
0 Replies
3186 Views
Last post February 06, 2025, 0649 UTC
by Robot Matrix
0 Replies
1835 Views
Last post February 24, 2025, 0741 UTC
by Robot Matrix
0 Replies
2157 Views
Last post February 25, 2025, 0815 UTC
by Robot Matrix
1 Replies
6687 Views
Last post April 20, 2025, 0530 UTC
by Looking-Glass
QSLing NDB's

Started by robman501a

1 Replies
5109 Views
Last post October 12, 2015, 2124 UTC
by Oliver
5 Replies
2314 Views
Last post January 01, 2018, 2229 UTC
by NM8R
0 Replies
3924 Views
Last post January 05, 2013, 0416 UTC
by refmo
1 Replies
2713 Views
Last post July 04, 2017, 0105 UTC
by Pigmeat
7 Replies
3007 Views
Last post November 04, 2019, 0227 UTC
by refmo
0 Replies
1319 Views
Last post October 31, 2017, 0052 UTC
by refmo
1 Replies
1713 Views
Last post October 31, 2017, 0216 UTC
by jFarley
5 Replies
2645 Views
Last post December 09, 2017, 1628 UTC
by pinto vortando
0 Replies
1514 Views
Last post December 26, 2017, 1333 UTC
by refmo

 

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