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
3 Replies
1245 Views
Last post March 19, 2018, 1134 UTC
by ChrisSmolinski
3 Replies
600 Views
Last post March 25, 2023, 2146 UTC
by Shortwave_Listener
3 Replies
910 Views
Last post December 30, 2019, 1821 UTC
by ChrisSmolinski
3 Replies
913 Views
Last post September 30, 2018, 1223 UTC
by ChrisSmolinski
3 Replies
1057 Views
Last post December 23, 2019, 1333 UTC
by ChrisSmolinski
3 Replies
808 Views
Last post October 06, 2018, 0101 UTC
by refmo
2 Replies
1240 Views
Last post October 13, 2017, 0044 UTC
by Helicaster
2 Replies
740 Views
Last post October 16, 2021, 1203 UTC
by ChrisSmolinski
2 Replies
1005 Views
Last post November 09, 2020, 2348 UTC
by Skipmuck
2 Replies
1425 Views
Last post December 04, 2018, 1842 UTC
by Daniel Wyllyans
2 Replies
739 Views
Last post January 01, 2021, 2336 UTC
by ChrisSmolinski
2 Replies
1198 Views
Last post November 16, 2017, 0113 UTC
by FFM
2 Replies
698 Views
Last post September 17, 2021, 1559 UTC
by ChrisSmolinski
2 Replies
803 Views
Last post January 28, 2021, 1349 UTC
by ChrisSmolinski
2 Replies
1041 Views
Last post January 09, 2018, 0036 UTC
by myteaquinn
2 Replies
880 Views
Last post January 07, 2019, 1819 UTC
by Pigmeat
2 Replies
833 Views
Last post January 08, 2019, 1123 UTC
by ChrisSmolinski
2 Replies
830 Views
Last post March 14, 2021, 1234 UTC
by ChrisSmolinski
2 Replies
808 Views
Last post March 18, 2021, 1303 UTC
by ChrisSmolinski
2 Replies
802 Views
Last post March 19, 2021, 1057 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