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
5 Replies
844 Views
Last post October 09, 2023, 1340 UTC
by DangerKitty
12 Replies
1523 Views
Last post September 02, 2021, 2357 UTC
by Dr. Strangelove
4 Replies
576 Views
Last post November 30, 2022, 1641 UTC
by Pigmeat
3 Replies
581 Views
Last post January 04, 2023, 0032 UTC
by ~SIGINT~
4 Replies
645 Views
Last post November 29, 2022, 2101 UTC
by Radio Star
1 Replies
373 Views
Last post December 07, 2022, 2026 UTC
by flexoman61
2 Replies
509 Views
Last post December 20, 2022, 2006 UTC
by Shortwave_Listener
1 Replies
690 Views
Last post October 31, 2023, 1553 UTC
by ChrisSmolinski
0 Replies
778 Views
Last post May 21, 2012, 1332 UTC
by ChrisSmolinski
1 Replies
1580 Views
Last post June 08, 2010, 0315 UTC
by Zoidberg
0 Replies
1040 Views
Last post April 01, 2012, 1710 UTC
by ChrisLobdell
0 Replies
932 Views
Last post April 29, 2010, 0235 UTC
by textim
0 Replies
1544 Views
Last post December 10, 2009, 0018 UTC
by textim
10 Replies
3272 Views
Last post February 17, 2015, 0742 UTC
by Gino Italy
1 Replies
1279 Views
Last post February 19, 2011, 2157 UTC
by Evil Elvis
1 Replies
709 Views
Last post April 05, 2020, 0147 UTC
by Sparkyzilla85
8 Replies
4083 Views
Last post December 28, 2013, 1727 UTC
by ChrisLobdell
2 Replies
2081 Views
Last post December 29, 2013, 1508 UTC
by ChrisSmolinski
1 Replies
839 Views
Last post March 23, 2013, 1651 UTC
by jFarley
4 Replies
1508 Views
Last post September 29, 2013, 1554 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 House Flag
by MitchellTimeDesigns