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
1 Replies
913 Views
Last post June 11, 2023, 0207 UTC
by Charlie_Dont_Surf
0 Replies
912 Views
Last post December 20, 2014, 2118 UTC
by oly1959
1 Replies
912 Views
Last post April 10, 2021, 1806 UTC
by M R I
0 Replies
911 Views
Last post June 14, 2017, 1147 UTC
by Ct Yankee
1 Replies
911 Views
Last post June 24, 2013, 1553 UTC
by glimmer twin
0 Replies
911 Views
Last post November 21, 2022, 1603 UTC
by ChrisSmolinski
1 Replies
911 Views
Last post March 26, 2020, 1408 UTC
by Ct Yankee
0 Replies
911 Views
Last post February 13, 2019, 1403 UTC
by ByteBORG
Propagation

Started by Fansome

0 Replies
910 Views
Last post September 21, 2013, 0318 UTC
by Fansome
0 Replies
910 Views
Last post April 30, 2014, 0728 UTC
by redhat
0 Replies
909 Views
Last post October 20, 2016, 1640 UTC
by Oliver
1 Replies
909 Views
Last post November 15, 2022, 2346 UTC
by flexoman61
0 Replies
909 Views
Last post June 28, 2013, 1456 UTC
by skeezix
0 Replies
908 Views
Last post November 05, 2014, 2246 UTC
by Fansome
0 Replies
908 Views
Last post November 23, 2015, 1832 UTC
by CoolAM Radio
0 Replies
908 Views
Last post February 17, 2021, 2224 UTC
by Brian
1 Replies
907 Views
Last post March 19, 2014, 2032 UTC
by Pigmeat
0 Replies
906 Views
Last post July 17, 2014, 1927 UTC
by ka1iic
0 Replies
906 Views
Last post September 26, 2013, 1015 UTC
by ChrisSmolinski
0 Replies
906 Views
Last post May 11, 2020, 0910 UTC
by glimmer twin

 

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