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
520 Views
Last post May 29, 2021, 0530 UTC
by circuitmike
UNID 3475 kHz AM 1601 1/1/20

Started by vhavrilko

0 Replies
735 Views
Last post January 01, 2020, 1603 UTC
by vhavrilko
0 Replies
742 Views
Last post November 29, 2018, 2222 UTC
by shadypyro
0 Replies
566 Views
Last post January 03, 2020, 1507 UTC
by East Troy Don
0 Replies
883 Views
Last post November 30, 2018, 2112 UTC
by kris
0 Replies
686 Views
Last post December 01, 2018, 1005 UTC
by Ray Lalleu
0 Replies
658 Views
Last post December 01, 2018, 1911 UTC
by East Troy Don
0 Replies
428 Views
Last post May 31, 2021, 1235 UTC
by kris
0 Replies
450 Views
Last post May 31, 2021, 1318 UTC
by Ct Yankee
0 Replies
753 Views
Last post December 02, 2018, 1553 UTC
by Ray Lalleu
0 Replies
2853 Views
Last post December 03, 2018, 0939 UTC
by Ray Lalleu
0 Replies
673 Views
Last post December 03, 2018, 1455 UTC
by kris
0 Replies
654 Views
Last post December 03, 2018, 1739 UTC
by Daniel Wyllyans
0 Replies
630 Views
Last post December 03, 2018, 2330 UTC
by Ct Yankee
0 Replies
497 Views
Last post June 21, 2019, 2248 UTC
by kris
0 Replies
825 Views
Last post December 05, 2018, 0409 UTC
by FTIOM01
0 Replies
673 Views
Last post December 05, 2018, 1419 UTC
by East Troy Don
0 Replies
695 Views
Last post December 05, 2018, 1429 UTC
by East Troy Don
0 Replies
528 Views
Last post May 31, 2021, 2220 UTC
by WPE6HET
0 Replies
680 Views
Last post December 06, 2018, 2308 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