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
1598 Views
Last post February 10, 2025, 1212 UTC
by ChrisSmolinski
0 Replies
1021 Views
Last post June 26, 2023, 1413 UTC
by ChrisSmolinski
9 Replies
4317 Views
Last post June 26, 2019, 1653 UTC
by ChrisSmolinski
0 Replies
695 Views
Last post September 30, 2023, 1442 UTC
by ChrisSmolinski
0 Replies
1158 Views
Last post January 01, 2020, 1633 UTC
by ChrisSmolinski
0 Replies
831 Views
Last post January 29, 2024, 1224 UTC
by ChrisSmolinski
1 Replies
1637 Views
Last post December 23, 2012, 1901 UTC
by rdla4
0 Replies
872 Views
Last post March 25, 2024, 1350 UTC
by ChrisSmolinski
0 Replies
936 Views
Last post November 22, 2020, 2148 UTC
by ChrisSmolinski
0 Replies
1278 Views
Last post August 06, 2024, 1704 UTC
by ChrisSmolinski
0 Replies
905 Views
Last post February 16, 2021, 0006 UTC
by ChrisSmolinski
0 Replies
739 Views
Last post November 25, 2024, 1223 UTC
by ChrisSmolinski
0 Replies
1634 Views
Last post November 15, 2017, 1553 UTC
by ChrisSmolinski
2 Replies
1194 Views
Last post April 02, 2021, 1816 UTC
by ChrisSmolinski
0 Replies
2738 Views
Last post February 11, 2025, 1250 UTC
by ChrisSmolinski
3 Replies
2434 Views
Last post November 08, 2018, 1547 UTC
by R4002
0 Replies
7938 Views
Last post July 27, 2019, 1506 UTC
by ChrisSmolinski
0 Replies
863 Views
Last post October 01, 2023, 1416 UTC
by ChrisSmolinski
0 Replies
815 Views
Last post January 30, 2024, 1610 UTC
by ChrisSmolinski
1 Replies
1373 Views
Last post June 24, 2020, 1839 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