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
11.175 usb

Started by Laidbackdx

1 Replies
845 Views
Last post April 02, 2022, 2325 UTC
by ~SIGINT~
2 Replies
1944 Views
Last post August 01, 2013, 2002 UTC
by Echo_One
0 Replies
1374 Views
Last post June 09, 2016, 0713 UTC
by l0ngwire
1 Replies
1246 Views
Last post May 31, 2022, 1833 UTC
by Ray Lalleu
0 Replies
1015 Views
Last post October 03, 2020, 1049 UTC
by kris
0 Replies
871 Views
Last post July 20, 2023, 2340 UTC
by kris
0 Replies
1133 Views
Last post October 27, 2023, 1305 UTC
by kris
0 Replies
1126 Views
Last post April 01, 2024, 0019 UTC
by kris
0 Replies
1183 Views
Last post November 28, 2018, 0002 UTC
by kris
0 Replies
756 Views
Last post April 04, 2022, 1832 UTC
by kris
0 Replies
879 Views
Last post February 26, 2023, 2254 UTC
by kris
1 Replies
1059 Views
Last post March 10, 2022, 1423 UTC
by NQC
0 Replies
1110 Views
Last post November 30, 2018, 1434 UTC
by kris
0 Replies
817 Views
Last post December 20, 2022, 0023 UTC
by kris
0 Replies
941 Views
Last post October 13, 2020, 1530 UTC
by kris
0 Replies
1192 Views
Last post November 30, 2018, 2359 UTC
by kris
0 Replies
925 Views
Last post March 03, 2023, 2028 UTC
by kris
3 Replies
1740 Views
Last post December 23, 2021, 0849 UTC
by Rurik
4 Replies
4182 Views
Last post December 05, 2018, 1327 UTC
by R4002
0 Replies
813 Views
Last post April 11, 2022, 1342 UTC
by kris

 

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