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
904 Views
Last post January 30, 2025, 2215 UTC
by kris
0 Replies
557 Views
Last post January 30, 2025, 0050 UTC
by dxace1
0 Replies
1598 Views
Last post January 29, 2025, 0411 UTC
by corq
0 Replies
726 Views
Last post January 25, 2025, 1855 UTC
by kris
53 Replies
32868 Views
Last post January 25, 2025, 1348 UTC
by sat_dxer
1 Replies
1097 Views
Last post January 21, 2025, 0337 UTC
by Shortwave_Listener
0 Replies
607 Views
Last post January 17, 2025, 1842 UTC
by Barycenter
2 Replies
1483 Views
Last post January 16, 2025, 2300 UTC
by n2avh
0 Replies
938 Views
Last post January 15, 2025, 0112 UTC
by n2avh
0 Replies
628 Views
Last post January 13, 2025, 0624 UTC
by Robot Matrix
0 Replies
680 Views
Last post January 09, 2025, 0038 UTC
by kris
0 Replies
630 Views
Last post January 09, 2025, 0008 UTC
by kris
1 Replies
779 Views
Last post January 06, 2025, 2021 UTC
by JCMaxwell
10 Replies
7069 Views
Last post December 23, 2024, 2037 UTC
by NickR
0 Replies
579 Views
Last post December 22, 2024, 2227 UTC
by N2MLP
3 Replies
1134 Views
Last post December 22, 2024, 0029 UTC
by Shortwave_Listener
2 Replies
1069 Views
Last post December 19, 2024, 0204 UTC
by davevosh@aol.com
2 Replies
1063 Views
Last post December 19, 2024, 0202 UTC
by davevosh@aol.com
0 Replies
597 Views
Last post December 15, 2024, 2243 UTC
by Shortwave_Listener
0 Replies
531 Views
Last post December 13, 2024, 1024 UTC
by kris

 

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