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
5 Replies
1431 Views
Last post January 17, 2021, 0543 UTC
by myteaquinn
0 Replies
711 Views
Last post May 27, 2019, 1318 UTC
by ChrisSmolinski
5 Replies
1297 Views
Last post June 27, 2019, 1320 UTC
by ChrisSmolinski
1 Replies
805 Views
Last post July 20, 2019, 0503 UTC
by myteaquinn
5 Replies
1065 Views
Last post May 27, 2020, 2226 UTC
by Skipmuck
12 Replies
1578 Views
Last post July 30, 2022, 0110 UTC
by KMD3HR
8 Replies
1433 Views
Last post July 05, 2019, 0000 UTC
by Skipmuck
6 Replies
1276 Views
Last post July 01, 2019, 1315 UTC
by ChrisSmolinski
1 Replies
614 Views
Last post February 11, 2021, 1306 UTC
by ChrisSmolinski
3 Replies
945 Views
Last post October 28, 2023, 0150 UTC
by Chuck54
5 Replies
837 Views
Last post May 30, 2020, 0207 UTC
by Bali_Frank
7 Replies
1170 Views
Last post July 05, 2020, 0432 UTC
by myteaquinn
2 Replies
783 Views
Last post July 26, 2020, 1232 UTC
by ChrisSmolinski
9 Replies
1898 Views
Last post January 12, 2021, 1142 UTC
by ChrisSmolinski
11 Replies
1517 Views
Last post May 16, 2020, 0246 UTC
by Davep
3 Replies
890 Views
Last post June 07, 2020, 0401 UTC
by refmo
12 Replies
1876 Views
Last post January 01, 2020, 0517 UTC
by oar9fi
3 Replies
617 Views
Last post August 19, 2024, 0112 UTC
by Molvania Poacher
6 Replies
932 Views
Last post August 06, 2024, 0047 UTC
by AlexRadioDX
2 Replies
1082 Views
Last post November 04, 2019, 1145 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 House Flag
by MitchellTimeDesigns