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
2 Replies
561 Views
Last post May 26, 2023, 0136 UTC
by N2MLP
11 Replies
1194 Views
Last post January 20, 2025, 0328 UTC
by myteaquinn
0 Replies
2773 Views
Last post December 01, 2018, 0149 UTC
by Token
8 Replies
2258 Views
Last post October 29, 2014, 1700 UTC
by ChrisSmolinski
8 Replies
2851 Views
Last post August 20, 2016, 1350 UTC
by ChrisSmolinski
1 Replies
912 Views
Last post August 26, 2012, 1518 UTC
by jFarley
1 Replies
507 Views
Last post January 22, 2023, 1115 UTC
by Ray Lalleu
0 Replies
428 Views
Last post May 13, 2023, 0127 UTC
by Chuck54
1 Replies
1249 Views
Last post April 24, 2017, 0122 UTC
by flexoman61
1 Replies
869 Views
Last post February 03, 2019, 0125 UTC
by Treehouse SWL
0 Replies
2741 Views
Last post December 04, 2022, 0131 UTC
by UtilitySeattle
4 Replies
598 Views
Last post July 16, 2024, 0904 UTC
by N2MLP
2 Replies
1170 Views
Last post April 13, 2014, 0130 UTC
by Skipmuck
0 Replies
389 Views
Last post June 28, 2022, 0129 UTC
by hsmith77
1 Replies
842 Views
Last post January 31, 2022, 0152 UTC
by bandarr3000
1 Replies
992 Views
Last post June 26, 2019, 1559 UTC
by ChrisSmolinski
0 Replies
748 Views
Last post June 12, 2013, 1913 UTC
by ChrisSmolinski
0 Replies
991 Views
Last post May 18, 2013, 0125 UTC
by hsmith77
0 Replies
529 Views
Last post June 03, 2019, 0951 UTC
by ChrisSmolinski
0 Replies
323 Views
Last post May 08, 2023, 1415 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