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
667 Views
Last post October 21, 2015, 1235 UTC
by ChrisSmolinski
5 Replies
1287 Views
Last post December 20, 2018, 2252 UTC
by caylorman
6 Replies
1163 Views
Last post October 15, 2020, 2224 UTC
by blw
19 Replies
1572 Views
Last post November 26, 2023, 1358 UTC
by hsmith77
0 Replies
975 Views
Last post May 12, 2014, 1234 UTC
by ChrisSmolinski
11 Replies
2730 Views
Last post September 19, 2017, 1034 UTC
by ChrisSmolinski
14 Replies
3477 Views
Last post April 03, 2016, 1611 UTC
by RainBrandy
14 Replies
3364 Views
Last post September 05, 2013, 2019 UTC
by jFarley
0 Replies
483 Views
Last post January 21, 2017, 2010 UTC
by ChrisSmolinski
1 Replies
1156 Views
Last post September 11, 2015, 2122 UTC
by ByteBORG
4 Replies
904 Views
Last post November 03, 2018, 1816 UTC
by digitalmod
7 Replies
1723 Views
Last post November 29, 2013, 2110 UTC
by Mentholyptus
9 Replies
2125 Views
Last post January 18, 2018, 0701 UTC
by Pigmeat
6 Replies
1491 Views
Last post December 14, 2015, 0048 UTC
by hsmith77
3 Replies
935 Views
Last post February 27, 2019, 1610 UTC
by R4002
3 Replies
3798 Views
Last post March 23, 2008, 1657 UTC
by Fansome
8 Replies
1667 Views
Last post June 22, 2024, 2145 UTC
by N2MLP
3 Replies
1906 Views
Last post March 03, 2015, 2319 UTC
by ByteBORG
3 Replies
1278 Views
Last post October 14, 2021, 1105 UTC
by ChrisSmolinski
6 Replies
1974 Views
Last post March 27, 2014, 0103 UTC
by thechoat

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns