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
577 Views
Last post January 23, 2021, 0257 UTC
by Bali_Frank
3 Replies
664 Views
Last post November 12, 2022, 1315 UTC
by refmo
3 Replies
901 Views
Last post December 31, 2020, 2108 UTC
by R. Comeau
0 Replies
607 Views
Last post May 24, 2021, 0323 UTC
by Bali_Frank
0 Replies
632 Views
Last post May 18, 2020, 0141 UTC
by Bali_Frank
0 Replies
671 Views
Last post November 07, 2021, 2054 UTC
by Bali_Frank
6 Replies
1321 Views
Last post May 06, 2021, 1002 UTC
by TRI International
0 Replies
628 Views
Last post April 20, 2020, 1851 UTC
by Bali_Frank
1 Replies
717 Views
Last post September 16, 2021, 2123 UTC
by TRI International
0 Replies
539 Views
Last post April 21, 2022, 2308 UTC
by Bali_Frank
5 Replies
1209 Views
Last post April 05, 2020, 1419 UTC
by PirateSWL
2 Replies
869 Views
Last post August 11, 2021, 1754 UTC
by Ct Yankee
2 Replies
770 Views
Last post December 12, 2022, 2243 UTC
by Zane
3 Replies
1018 Views
Last post May 05, 2023, 1855 UTC
by Pravotorov
0 Replies
699 Views
Last post January 19, 2021, 2308 UTC
by Bali_Frank
0 Replies
627 Views
Last post January 19, 2021, 0428 UTC
by Bali_Frank
0 Replies
625 Views
Last post January 22, 2022, 0238 UTC
by Bali_Frank
1 Replies
721 Views
Last post June 17, 2021, 2121 UTC
by Pravotorov
0 Replies
521 Views
Last post December 31, 2020, 1216 UTC
by Bali_Frank
2 Replies
793 Views
Last post December 28, 2021, 0135 UTC
by ChrisLobdell

 

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