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
721 Views
Last post October 20, 2024, 1934 UTC
by Paul B. Walker, Jr.
0 Replies
435 Views
Last post November 23, 2024, 1529 UTC
by N2MLP
0 Replies
1250 Views
Last post April 06, 2025, 1515 UTC
by N2MLP
0 Replies
895 Views
Last post June 19, 2025, 1216 UTC
by N2MLP
0 Replies
456 Views
Last post November 17, 2024, 0459 UTC
by N2MLP
0 Replies
1719 Views
Last post July 27, 2016, 0025 UTC
by Davep
0 Replies
2285 Views
Last post January 12, 2015, 2214 UTC
by ulx2
2 Replies
2061 Views
Last post October 25, 2015, 2109 UTC
by ulx2
0 Replies
1948 Views
Last post January 04, 2015, 1730 UTC
by skeezix
0 Replies
1983 Views
Last post November 04, 2015, 2055 UTC
by ka1iic
0 Replies
821 Views
Last post February 15, 2022, 1955 UTC
by hammarhead
1 Replies
868 Views
Last post October 26, 2021, 0220 UTC
by Elf36
0 Replies
683 Views
Last post December 22, 2021, 1900 UTC
by hammarhead
1 Replies
884 Views
Last post July 27, 2022, 0005 UTC
by Pigmeat
1 Replies
1364 Views
Last post May 14, 2017, 0120 UTC
by Terry
0 Replies
691 Views
Last post January 05, 2022, 1654 UTC
by hammarhead
0 Replies
552 Views
Last post October 04, 2024, 1324 UTC
by dave524
0 Replies
508 Views
Last post November 15, 2024, 2039 UTC
by dave524
0 Replies
710 Views
Last post September 16, 2021, 1911 UTC
by R4002
1 Replies
900 Views
Last post September 22, 2021, 1114 UTC
by R4002

 

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