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
754 Views
Last post July 24, 2016, 1803 UTC
by ChrisSmolinski
2 Replies
1566 Views
Last post March 11, 2015, 0047 UTC
by KillercatRadio
1 Replies
1041 Views
Last post April 23, 2025, 1313 UTC
by ChrisSmolinski
1 Replies
733 Views
Last post May 14, 2025, 0027 UTC
by Ron Hunsicker
2 Replies
967 Views
Last post December 30, 2017, 2045 UTC
by digitalmod
4 Replies
1555 Views
Last post May 24, 2025, 1743 UTC
by Tony_Pavick
1 Replies
1125 Views
Last post February 16, 2017, 1306 UTC
by ChrisSmolinski
0 Replies
774 Views
Last post March 01, 2015, 1605 UTC
by ChrisSmolinski
0 Replies
1107 Views
Last post October 26, 2014, 0449 UTC
by Labviewguru
3 Replies
1024 Views
Last post February 08, 2025, 0451 UTC
by Radiouser
0 Replies
395 Views
Last post February 25, 2024, 0422 UTC
by canswl
0 Replies
783 Views
Last post December 29, 2015, 1505 UTC
by ChrisSmolinski
0 Replies
535 Views
Last post September 05, 2021, 0419 UTC
by Treehouse SWL
4 Replies
1820 Views
Last post September 10, 2016, 1448 UTC
by Skipmuck
0 Replies
647 Views
Last post November 01, 2015, 1754 UTC
by ChrisSmolinski
4 Replies
736 Views
Last post November 28, 2024, 0455 UTC
by Quasar
1 Replies
417 Views
Last post July 28, 2023, 1508 UTC
by TheHappyWanker
4 Replies
673 Views
Last post November 01, 2024, 2238 UTC
by RainBrandy
0 Replies
796 Views
Last post March 22, 2015, 1851 UTC
by ChrisSmolinski
6 Replies
3278 Views
Last post May 30, 2015, 1539 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