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
498 Views
Last post July 01, 2023, 0957 UTC
by Ct Yankee
0 Replies
499 Views
Last post October 15, 2023, 1348 UTC
by TRI International
0 Replies
499 Views
Last post October 28, 2022, 0333 UTC
by Shortwave_Listener
0 Replies
499 Views
Last post May 22, 2022, 1701 UTC
by Shortwave_Listener
0 Replies
499 Views
Last post August 25, 2025, 1546 UTC
by TRI International
0 Replies
499 Views
Last post December 15, 2022, 2227 UTC
by East Troy Don
0 Replies
499 Views
Last post September 20, 2024, 2053 UTC
by East Troy Don
0 Replies
499 Views
Last post April 08, 2023, 1836 UTC
by MDK2
0 Replies
500 Views
Last post June 30, 2024, 0020 UTC
by Ct Yankee
0 Replies
500 Views
Last post December 28, 2024, 1641 UTC
by TRI International
0 Replies
500 Views
Last post January 15, 2021, 1324 UTC
by kris
1 Replies
500 Views
Last post November 22, 2024, 2253 UTC
by Paul B. Walker, Jr.
0 Replies
501 Views
Last post November 26, 2022, 0404 UTC
by ~SIGINT~
0 Replies
501 Views
Last post December 19, 2024, 0925 UTC
by TRI International
0 Replies
501 Views
Last post September 05, 2021, 2332 UTC
by kris
0 Replies
501 Views
Last post August 12, 2025, 1019 UTC
by SWLQSL
0 Replies
501 Views
Last post September 27, 2022, 1511 UTC
by Shortwave_Listener
0 Replies
502 Views
Last post July 29, 2023, 0519 UTC
by ~SIGINT~
0 Replies
502 Views
Last post October 27, 2023, 0817 UTC
by TRI International
0 Replies
502 Views
Last post February 21, 2024, 2301 UTC
by Ct Yankee

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground Mug
HFUnderground Mug
by MitchellTimeDesigns