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
324 Views
Last post January 24, 2023, 1408 UTC
by Ct Yankee
1 Replies
408 Views
Last post January 04, 2023, 0414 UTC
by Pigmeat
0 Replies
531 Views
Last post November 25, 2017, 2018 UTC
by Ct Yankee
0 Replies
656 Views
Last post December 16, 2017, 2148 UTC
by Ct Yankee
0 Replies
916 Views
Last post April 10, 2016, 1940 UTC
by Ct Yankee
0 Replies
1055 Views
Last post August 07, 2014, 0450 UTC
by IQ_imbalance
0 Replies
657 Views
Last post October 18, 2020, 0531 UTC
by Bill F
1 Replies
519 Views
Last post September 20, 2022, 1943 UTC
by Ron - Calif.
0 Replies
334 Views
Last post September 07, 2022, 0230 UTC
by Shortwave_Listener
0 Replies
662 Views
Last post April 28, 2020, 0546 UTC
by autovon
4 Replies
727 Views
Last post September 05, 2022, 2358 UTC
by Pigmeat
2 Replies
531 Views
Last post December 13, 2022, 1602 UTC
by ~SIGINT~
0 Replies
668 Views
Last post October 24, 2017, 1851 UTC
by JoeFLIPS
0 Replies
1322 Views
Last post February 27, 2014, 0507 UTC
by glimmer twin
0 Replies
769 Views
Last post July 22, 2019, 0432 UTC
by East Troy Don
1 Replies
1169 Views
Last post November 19, 2018, 1952 UTC
by East Troy Don
0 Replies
685 Views
Last post July 15, 2018, 0459 UTC
by East Troy Don
0 Replies
551 Views
Last post October 10, 2019, 2150 UTC
by East Troy Don
0 Replies
845 Views
Last post March 28, 2018, 2247 UTC
by East Troy Don
0 Replies
894 Views
Last post May 31, 2017, 0057 UTC
by Skipmuck

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns