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
1215 Views
Last post March 22, 2017, 0051 UTC
by R4002
4 Replies
967 Views
Last post February 22, 2024, 2320 UTC
by dxwingr
0 Replies
765 Views
Last post December 31, 2022, 2245 UTC
by Skipmuck
0 Replies
1147 Views
Last post May 05, 2017, 0104 UTC
by Daniel Wyllyans
1 Replies
821 Views
Last post July 15, 2023, 0132 UTC
by ~SIGINT~
0 Replies
634 Views
Last post June 05, 2024, 0131 UTC
by hflstnr
1 Replies
913 Views
Last post January 30, 2018, 0143 UTC
by R4002
4 Replies
1147 Views
Last post July 22, 2024, 0913 UTC
by N2MLP
0 Replies
456 Views
Last post October 27, 2024, 0632 UTC
by Shortwave_Listener
1 Replies
989 Views
Last post August 01, 2023, 0021 UTC
by N2MLP
0 Replies
674 Views
Last post April 04, 2024, 1412 UTC
by WA4OSH
1 Replies
969 Views
Last post March 16, 2024, 2359 UTC
by TheHappyWanker
5 Replies
2094 Views
Last post November 11, 2017, 1601 UTC
by MDK2
2 Replies
1146 Views
Last post July 23, 2024, 0120 UTC
by TheHappyWanker
9 Replies
3548 Views
Last post November 19, 2017, 1201 UTC
by ChrisSmolinski
0 Replies
1274 Views
Last post October 18, 2023, 1241 UTC
by Route66Fan
0 Replies
574 Views
Last post April 04, 2024, 1357 UTC
by WA4OSH
2 Replies
1514 Views
Last post September 14, 2023, 0216 UTC
by Shortwave_Listener
2 Replies
428 Views
Last post November 09, 2024, 0300 UTC
by Dr. Strangelove
1 Replies
791 Views
Last post November 20, 2023, 2215 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