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
649 Views
Last post October 16, 2021, 1257 UTC
by Ct Yankee
0 Replies
668 Views
Last post September 29, 2018, 1257 UTC
by ChrisSmolinski
0 Replies
931 Views
Last post August 16, 2015, 1704 UTC
by ChrisSmolinski
4 Replies
951 Views
Last post January 31, 2025, 2244 UTC
by Andrew Yoder
3 Replies
1439 Views
Last post December 07, 2015, 1440 UTC
by jFarley
0 Replies
744 Views
Last post November 04, 2017, 1627 UTC
by ChrisSmolinski
1 Replies
1150 Views
Last post March 14, 2015, 1329 UTC
by Pigmeat
1 Replies
635 Views
Last post November 04, 2024, 1345 UTC
by ChrisSmolinski
8 Replies
2011 Views
Last post December 28, 2015, 2115 UTC
by R4002
0 Replies
936 Views
Last post March 21, 2015, 1456 UTC
by ChrisSmolinski
4 Replies
1169 Views
Last post October 29, 2017, 1339 UTC
by PirateSWL
0 Replies
485 Views
Last post November 27, 2021, 1319 UTC
by Skipmuck
5 Replies
2195 Views
Last post January 19, 2016, 1639 UTC
by flexoman61
0 Replies
568 Views
Last post May 19, 2018, 1331 UTC
by ChrisSmolinski
0 Replies
512 Views
Last post December 22, 2020, 1320 UTC
by ChrisSmolinski
6 Replies
1750 Views
Last post December 31, 2015, 1717 UTC
by Pigmeat
1 Replies
1086 Views
Last post December 09, 2015, 1327 UTC
by ChrisSmolinski
0 Replies
917 Views
Last post May 19, 2012, 1558 UTC
by ChrisSmolinski
0 Replies
1362 Views
Last post August 29, 2009, 1355 UTC
by ChrisSmolinski
1 Replies
403 Views
Last post April 20, 2025, 1721 UTC
by N2MLP

 

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