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
10 Replies
1662 Views
Last post July 17, 2023, 2254 UTC
by Pigmeat
0 Replies
867 Views
Last post September 12, 2015, 1622 UTC
by ChrisSmolinski
0 Replies
1136 Views
Last post January 08, 2012, 1859 UTC
by ChrisSmolinski
7 Replies
1626 Views
Last post November 28, 2021, 1714 UTC
by ✠ Blue Max
0 Replies
877 Views
Last post September 05, 2013, 1437 UTC
by ChrisSmolinski
1 Replies
782 Views
Last post June 11, 2025, 1340 UTC
by Ron Hunsicker
4 Replies
1791 Views
Last post September 20, 2017, 2112 UTC
by R4002
0 Replies
1237 Views
Last post May 14, 2014, 1407 UTC
by ChrisSmolinski
8 Replies
1962 Views
Last post January 09, 2016, 2329 UTC
by Rafman
0 Replies
693 Views
Last post October 14, 2016, 1318 UTC
by ChrisSmolinski
11 Replies
1092 Views
Last post September 20, 2025, 1851 UTC
by TRI International
1 Replies
1034 Views
Last post April 14, 2013, 1756 UTC
by Andrew Yoder
11 Replies
3097 Views
Last post December 02, 2014, 0150 UTC
by Zane
0 Replies
660 Views
Last post December 16, 2018, 1756 UTC
by ChrisSmolinski
2 Replies
1167 Views
Last post December 29, 2012, 1421 UTC
by jFarley
3 Replies
1057 Views
Last post October 24, 2015, 0139 UTC
by Mentholyptus
4 Replies
647 Views
Last post October 25, 2022, 2207 UTC
by hsmith77
5 Replies
1870 Views
Last post February 25, 2012, 0026 UTC
by zackers
5 Replies
1715 Views
Last post March 07, 2017, 0023 UTC
by Rafman
1 Replies
986 Views
Last post July 16, 2018, 2356 UTC
by Skipmuck

 

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