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
1176 Views
Last post February 05, 2024, 1106 UTC
by ChrisSmolinski
0 Replies
1118 Views
Last post April 02, 2021, 1841 UTC
by ChrisSmolinski
0 Replies
924 Views
Last post November 27, 2023, 1613 UTC
by ChrisSmolinski
0 Replies
1166 Views
Last post February 16, 2021, 0006 UTC
by ChrisSmolinski
0 Replies
1083 Views
Last post November 22, 2020, 2148 UTC
by ChrisSmolinski
0 Replies
2150 Views
Last post September 06, 2025, 1958 UTC
by ChrisSmolinski
1 Replies
1842 Views
Last post December 23, 2012, 1901 UTC
by rdla4
0 Replies
897 Views
Last post April 02, 2023, 1500 UTC
by ChrisSmolinski
0 Replies
1362 Views
Last post January 01, 2020, 1633 UTC
by ChrisSmolinski
0 Replies
1558 Views
Last post August 19, 2024, 1235 UTC
by ChrisSmolinski
9 Replies
4766 Views
Last post June 26, 2019, 1653 UTC
by ChrisSmolinski
0 Replies
1166 Views
Last post April 07, 2024, 1158 UTC
by ChrisSmolinski
3 Replies
2723 Views
Last post November 08, 2018, 1547 UTC
by R4002
0 Replies
1327 Views
Last post February 04, 2024, 1400 UTC
by ChrisSmolinski
2 Replies
1375 Views
Last post April 02, 2021, 1816 UTC
by ChrisSmolinski
0 Replies
1881 Views
Last post November 15, 2017, 1553 UTC
by ChrisSmolinski
0 Replies
1175 Views
Last post November 25, 2023, 1308 UTC
by ChrisSmolinski
0 Replies
1121 Views
Last post February 16, 2021, 0005 UTC
by ChrisSmolinski
0 Replies
899 Views
Last post October 05, 2023, 1257 UTC
by ChrisSmolinski
0 Replies
1111 Views
Last post November 22, 2020, 2144 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