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
5 Replies
3453 Views
Last post January 03, 2016, 1947 UTC
by ka1iic
0 Replies
513 Views
Last post October 07, 2020, 1035 UTC
by ChrisSmolinski
1 Replies
993 Views
Last post October 28, 2017, 1134 UTC
by Skipmuck
0 Replies
473 Views
Last post September 23, 2019, 1124 UTC
by ChrisSmolinski
0 Replies
328 Views
Last post September 22, 2023, 1229 UTC
by ChrisSmolinski
0 Replies
548 Views
Last post December 04, 2017, 1111 UTC
by ChrisSmolinski
0 Replies
984 Views
Last post October 02, 2013, 1148 UTC
by ChrisSmolinski
0 Replies
584 Views
Last post August 10, 2018, 1610 UTC
by ChrisSmolinski
0 Replies
527 Views
Last post October 08, 2017, 2031 UTC
by ChrisSmolinski
0 Replies
437 Views
Last post October 07, 2020, 1053 UTC
by ChrisSmolinski
0 Replies
903 Views
Last post October 19, 2017, 1118 UTC
by ChrisSmolinski
0 Replies
613 Views
Last post September 11, 2018, 1708 UTC
by ChrisSmolinski
1 Replies
722 Views
Last post October 25, 2017, 2037 UTC
by MDK2
0 Replies
684 Views
Last post December 09, 2016, 2148 UTC
by ChrisSmolinski
1 Replies
1229 Views
Last post July 28, 2013, 2130 UTC
by BoomboxDX
0 Replies
748 Views
Last post March 11, 2025, 1639 UTC
by ChrisSmolinski
5 Replies
2512 Views
Last post September 06, 2017, 2039 UTC
by MDK2
0 Replies
618 Views
Last post June 17, 2022, 2139 UTC
by ChrisSmolinski
2 Replies
2807 Views
Last post March 26, 2013, 0015 UTC
by FTU Alumnus
0 Replies
578 Views
Last post December 04, 2017, 1136 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 T-Shirt
by MitchellTimeDesigns