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
1 Replies
922 Views
Last post May 29, 2021, 1444 UTC
by Ct Yankee
6 Replies
1379 Views
Last post May 29, 2021, 2157 UTC
by RobRich
1 Replies
1023 Views
Last post June 02, 2021, 2007 UTC
by bamaDX
2 Replies
1121 Views
Last post June 04, 2021, 0635 UTC
by ThaDood
0 Replies
697 Views
Last post June 08, 2021, 0146 UTC
by RobRich
0 Replies
767 Views
Last post June 11, 2021, 1732 UTC
by ChrisSmolinski
3 Replies
1135 Views
Last post June 18, 2021, 1344 UTC
by N0TLD
0 Replies
996 Views
Last post June 22, 2021, 1502 UTC
by RobRich
2 Replies
1002 Views
Last post July 25, 2021, 1558 UTC
by ~SIGINT~
0 Replies
778 Views
Last post July 29, 2021, 0154 UTC
by RobRich
0 Replies
605 Views
Last post August 20, 2021, 1507 UTC
by mewmew66
0 Replies
623 Views
Last post August 20, 2021, 1529 UTC
by mewmew66
0 Replies
628 Views
Last post August 21, 2021, 0902 UTC
by mewmew66
1 Replies
813 Views
Last post August 21, 2021, 2029 UTC
by Elf36
10/11M activity

Started by Elf36

0 Replies
887 Views
Last post August 23, 2021, 1510 UTC
by Elf36
1 Replies
879 Views
Last post August 29, 2021, 1357 UTC
by Elf36
0 Replies
718 Views
Last post September 05, 2021, 1822 UTC
by ThaDood
2 Replies
925 Views
Last post September 08, 2021, 1557 UTC
by R4002
0 Replies
758 Views
Last post September 08, 2021, 1558 UTC
by R4002
9 Replies
3008 Views
Last post September 08, 2021, 1601 UTC
by R4002

 

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