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
836 Views
Last post December 15, 2015, 0012 UTC
by ChrisSmolinski
0 Replies
1202 Views
Last post September 10, 2013, 0222 UTC
by skeezix
0 Replies
761 Views
Last post June 13, 2013, 1124 UTC
by Fansome
0 Replies
975 Views
Last post June 13, 2013, 2120 UTC
by Pigmeat
0 Replies
1359 Views
Last post March 29, 2014, 1946 UTC
by glimmer twin
0 Replies
989 Views
Last post November 23, 2016, 2029 UTC
by kris
Propagation

Started by Fansome

0 Replies
743 Views
Last post June 15, 2013, 0259 UTC
by Fansome
0 Replies
1060 Views
Last post August 20, 2015, 0202 UTC
by atrainradio
Updates!

Started by CoolAM Radio

0 Replies
1068 Views
Last post March 24, 2015, 1618 UTC
by CoolAM Radio
0 Replies
1207 Views
Last post July 31, 2018, 1036 UTC
by CoolAM Radio
0 Replies
1213 Views
Last post June 17, 2013, 1255 UTC
by ChrisSmolinski
0 Replies
846 Views
Last post April 07, 2019, 1256 UTC
by NJQA
0 Replies
974 Views
Last post June 17, 2013, 2332 UTC
by skeezix
0 Replies
955 Views
Last post October 07, 2013, 2324 UTC
by CoolAM Radio
0 Replies
1002 Views
Last post June 20, 2013, 2337 UTC
by Zoidberg
Propagation

Started by Fansome

0 Replies
783 Views
Last post June 21, 2013, 2213 UTC
by Fansome
Propagation

Started by Fansome

0 Replies
808 Views
Last post June 28, 2013, 2008 UTC
by Fansome
0 Replies
1090 Views
Last post June 23, 2013, 1518 UTC
by Fansome
0 Replies
697 Views
Last post January 22, 2020, 1947 UTC
by Traveling Wave
0 Replies
911 Views
Last post June 23, 2013, 2356 UTC
by CoolAM Radio

 

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