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
8 Replies
3156 Views
Last post December 06, 2016, 1718 UTC
by shadypyro
0 Replies
994 Views
Last post October 20, 2017, 1830 UTC
by ChrisSmolinski
0 Replies
532 Views
Last post October 09, 2017, 1109 UTC
by ChrisSmolinski
0 Replies
580 Views
Last post December 04, 2017, 1136 UTC
by ChrisSmolinski
2 Replies
2811 Views
Last post March 26, 2013, 0015 UTC
by FTU Alumnus
0 Replies
618 Views
Last post June 17, 2022, 2139 UTC
by ChrisSmolinski
5 Replies
2515 Views
Last post September 06, 2017, 2039 UTC
by MDK2
0 Replies
749 Views
Last post March 11, 2025, 1639 UTC
by ChrisSmolinski
1 Replies
1232 Views
Last post July 28, 2013, 2130 UTC
by BoomboxDX
0 Replies
689 Views
Last post December 09, 2016, 2148 UTC
by ChrisSmolinski
0 Replies
554 Views
Last post May 21, 2019, 1438 UTC
by ChrisSmolinski
1 Replies
1113 Views
Last post August 07, 2014, 2115 UTC
by rdla4
2 Replies
1640 Views
Last post March 20, 2024, 1440 UTC
by Paul B. Walker, Jr.
0 Replies
483 Views
Last post October 09, 2017, 1103 UTC
by ChrisSmolinski
3 Replies
1516 Views
Last post April 11, 2014, 1736 UTC
by ff
1 Replies
993 Views
Last post January 18, 2017, 0209 UTC
by Terry
0 Replies
553 Views
Last post December 04, 2017, 1111 UTC
by ChrisSmolinski
1 Replies
724 Views
Last post October 25, 2017, 2037 UTC
by MDK2
0 Replies
614 Views
Last post September 11, 2018, 1708 UTC
by ChrisSmolinski
0 Replies
905 Views
Last post October 19, 2017, 1118 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 Garden Flag
by MitchellTimeDesigns