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
429 Views
Last post June 06, 2023, 0326 UTC
by East Troy Don
0 Replies
429 Views
Last post November 22, 2024, 1136 UTC
by RobRich
0 Replies
429 Views
Last post January 14, 2024, 0342 UTC
by RobRich
0 Replies
429 Views
Last post September 18, 2023, 0841 UTC
by TRI International
0 Replies
429 Views
Last post November 29, 2023, 1804 UTC
by TRI International
0 Replies
428 Views
Last post December 03, 2022, 1942 UTC
by East Troy Don
0 Replies
428 Views
Last post August 03, 2025, 1832 UTC
by Ct Yankee
1 Replies
428 Views
Last post September 25, 2023, 1040 UTC
by Paul65
0 Replies
428 Views
Last post October 10, 2023, 1840 UTC
by TRI International
0 Replies
428 Views
Last post October 11, 2023, 0845 UTC
by TRI International
0 Replies
427 Views
Last post October 10, 2023, 0949 UTC
by TRI International
0 Replies
427 Views
Last post October 12, 2023, 1335 UTC
by TRI International
0 Replies
427 Views
Last post August 26, 2022, 2239 UTC
by Ct Yankee
0 Replies
427 Views
Last post March 19, 2023, 1533 UTC
by East Troy Don
0 Replies
427 Views
Last post September 19, 2023, 0951 UTC
by TRI International
0 Replies
427 Views
Last post November 17, 2024, 0529 UTC
by Romak3
0 Replies
427 Views
Last post October 27, 2024, 1301 UTC
by Ct Yankee
0 Replies
427 Views
Last post November 25, 2024, 0844 UTC
by TRI International
0 Replies
427 Views
Last post June 30, 2024, 1734 UTC
by N2MLP
0 Replies
427 Views
Last post October 14, 2023, 1524 UTC
by Paul65

 

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