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
1088 Views
Last post August 30, 2013, 1150 UTC
by Beerus Maximus
0 Replies
559 Views
Last post April 20, 2017, 1143 UTC
by ChrisSmolinski
0 Replies
341 Views
Last post April 12, 2023, 0327 UTC
by Shortwave_Listener
0 Replies
504 Views
Last post July 19, 2019, 2338 UTC
by ChrisSmolinski
0 Replies
328 Views
Last post March 11, 2023, 0010 UTC
by Shortwave_Listener
0 Replies
817 Views
Last post June 15, 2013, 1345 UTC
by ChrisSmolinski
0 Replies
858 Views
Last post April 21, 2017, 1449 UTC
by R4002
0 Replies
806 Views
Last post April 21, 2017, 1501 UTC
by R4002
0 Replies
356 Views
Last post October 13, 2022, 0211 UTC
by TheHappyWanker
0 Replies
931 Views
Last post April 22, 2017, 2240 UTC
by Markokpik
0 Replies
459 Views
Last post April 17, 2023, 0405 UTC
by Shortwave_Listener
0 Replies
432 Views
Last post March 15, 2023, 0243 UTC
by myteaquinn
0 Replies
623 Views
Last post April 23, 2017, 1604 UTC
by Skipmuck
0 Replies
813 Views
Last post June 16, 2013, 1503 UTC
by ChrisSmolinski
0 Replies
785 Views
Last post June 16, 2013, 1510 UTC
by ChrisSmolinski
0 Replies
330 Views
Last post July 15, 2023, 0459 UTC
by Shortwave_Listener
0 Replies
472 Views
Last post December 06, 2023, 0229 UTC
by Shortwave_Listener
0 Replies
588 Views
Last post April 17, 2021, 0120 UTC
by blw
0 Replies
1097 Views
Last post June 16, 2013, 1809 UTC
by Grizz489
0 Replies
909 Views
Last post June 16, 2013, 2035 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