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
1006 Views
Last post January 19, 2023, 1245 UTC
by mike
0 Replies
902 Views
Last post December 29, 2022, 1403 UTC
by mike
0 Replies
1058 Views
Last post March 08, 2023, 1217 UTC
by mike
1 Replies
1071 Views
Last post January 29, 2023, 2055 UTC
by Shortwave_Listener
1 Replies
1187 Views
Last post January 05, 2023, 0005 UTC
by Shortwave_Listener
0 Replies
926 Views
Last post February 01, 2023, 1216 UTC
by mike
0 Replies
974 Views
Last post December 30, 2022, 1706 UTC
by mike
1 Replies
1218 Views
Last post February 19, 2023, 1505 UTC
by Beerus Maximus
0 Replies
1682 Views
Last post August 11, 2018, 1310 UTC
by ChrisSmolinski
2 Replies
1513 Views
Last post September 26, 2021, 0214 UTC
by McRadioface
1 Replies
1493 Views
Last post October 11, 2021, 1406 UTC
by ~SIGINT~
0 Replies
1153 Views
Last post April 24, 2017, 0426 UTC
by R4002
6 Replies
1416 Views
Last post May 12, 2023, 0130 UTC
by Skipmuck
0 Replies
1024 Views
Last post January 23, 2018, 1825 UTC
by ka1iic
2 Replies
1399 Views
Last post June 08, 2020, 1854 UTC
by tiNG
0 Replies
1116 Views
Last post May 23, 2020, 1017 UTC
by RF_Cat
0 Replies
1005 Views
Last post May 23, 2020, 1031 UTC
by RF_Cat
0 Replies
1202 Views
Last post May 23, 2020, 1042 UTC
by RF_Cat
1 Replies
1309 Views
Last post April 15, 2023, 0201 UTC
by ~SIGINT~
6 Replies
2224 Views
Last post June 09, 2020, 0809 UTC
by Ronald_Mullis

 

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