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
521 Views
Last post February 01, 2024, 0010 UTC
by saint
0 Replies
1067 Views
Last post January 24, 2021, 2010 UTC
by alleycat
23 Replies
6860 Views
Last post December 08, 2018, 0308 UTC
by Exo
0 Replies
1054 Views
Last post November 18, 2020, 1141 UTC
by Looking-Glass
2 Replies
4229 Views
Last post June 30, 2016, 1600 UTC
by ka1iic
3 Replies
1357 Views
Last post June 24, 2022, 2107 UTC
by Token
1 Replies
31482 Views
Last post July 24, 2019, 2151 UTC
by ChrisSmolinski
1 Replies
1333 Views
Last post December 15, 2020, 1536 UTC
by PresentedIn4D
3 Replies
2770 Views
Last post February 12, 2017, 1823 UTC
by SkyWalker
2 Replies
1181 Views
Last post December 19, 2021, 2239 UTC
by ~SIGINT~
4 Replies
1146 Views
Last post August 28, 2022, 0612 UTC
by redhat
0 Replies
958 Views
Last post May 25, 2022, 0233 UTC
by turbocode
1 Replies
1419 Views
Last post February 04, 2021, 1713 UTC
by Sky
5 Replies
1760 Views
Last post August 01, 2021, 0217 UTC
by ~SIGINT~
4 Replies
2267 Views
Last post September 30, 2019, 1936 UTC
by Boriken
3 Replies
2459 Views
Last post August 27, 2016, 0331 UTC
by Token
3 Replies
3772 Views
Last post March 04, 2016, 0204 UTC
by Josh
11 Replies
5640 Views
Last post January 15, 2019, 1812 UTC
by R4002
4 Replies
1809 Views
Last post February 01, 2021, 0934 UTC
by QRP
1 Replies
2741 Views
Last post March 09, 2015, 0005 UTC
by Token

 

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