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
1102 Views
Last post December 31, 2020, 2007 UTC
by ChrisSmolinski
0 Replies
788 Views
Last post September 22, 2023, 1200 UTC
by ChrisSmolinski
0 Replies
925 Views
Last post November 07, 2020, 1323 UTC
by ChrisSmolinski
0 Replies
1242 Views
Last post July 03, 2025, 1108 UTC
by ChrisSmolinski
2 Replies
1311 Views
Last post December 19, 2019, 1311 UTC
by ChrisSmolinski
0 Replies
943 Views
Last post November 04, 2024, 1232 UTC
by ChrisSmolinski
0 Replies
1156 Views
Last post July 08, 2024, 1219 UTC
by ChrisSmolinski
0 Replies
1370 Views
Last post January 09, 2019, 1230 UTC
by ChrisSmolinski
1 Replies
1399 Views
Last post June 01, 2021, 1824 UTC
by ThaDood
0 Replies
950 Views
Last post March 13, 2021, 2338 UTC
by ChrisSmolinski
0 Replies
1056 Views
Last post December 29, 2020, 2021 UTC
by ChrisSmolinski
5 Replies
2384 Views
Last post October 20, 2014, 0059 UTC
by ChrisLobdell
1 Replies
960 Views
Last post September 18, 2023, 1148 UTC
by ChrisSmolinski
0 Replies
883 Views
Last post November 07, 2020, 1239 UTC
by ChrisSmolinski
0 Replies
1202 Views
Last post July 03, 2025, 1101 UTC
by ChrisSmolinski
0 Replies
1097 Views
Last post January 31, 2020, 1833 UTC
by ChrisSmolinski
0 Replies
992 Views
Last post July 06, 2024, 1250 UTC
by ChrisSmolinski
0 Replies
1273 Views
Last post December 29, 2021, 2233 UTC
by ChrisSmolinski
2 Replies
1744 Views
Last post October 03, 2021, 1952 UTC
by ChrisSmolinski
0 Replies
1134 Views
Last post March 12, 2021, 2321 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