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
850 Views
Last post July 31, 2018, 2227 UTC
by ChrisSmolinski
1 Replies
982 Views
Last post August 01, 2018, 1314 UTC
by MDK2
1 Replies
1249 Views
Last post August 13, 2018, 1720 UTC
by Josh
1 Replies
995 Views
Last post March 26, 2024, 0315 UTC
by kalvados
1 Replies
1232 Views
Last post August 03, 2018, 1741 UTC
by Josh
1 Replies
904 Views
Last post March 28, 2024, 2354 UTC
by ~SIGINT~
1 Replies
1089 Views
Last post August 03, 2018, 2334 UTC
by ChrisSmolinski
12857 S4285

Started by Josh

1 Replies
1657 Views
Last post August 25, 2018, 2119 UTC
by Josh
1 Replies
804 Views
Last post April 09, 2024, 1405 UTC
by GerrySWL
1 Replies
798 Views
Last post April 16, 2024, 0949 UTC
by kris
1 Replies
1260 Views
Last post August 11, 2018, 1911 UTC
by Strange Beacons
1 Replies
757 Views
Last post May 10, 2024, 0246 UTC
by Shortwave_Listener
1 Replies
1973 Views
Last post November 22, 2021, 2209 UTC
by sat_dxer
1 Replies
1418 Views
Last post August 12, 2018, 2025 UTC
by Josh
1 Replies
901 Views
Last post August 05, 2024, 2017 UTC
by Ray Lalleu
1 Replies
1011 Views
Last post August 07, 2024, 2015 UTC
by kris
1 Replies
1444 Views
Last post September 06, 2018, 1933 UTC
by sat_dxer
1 Replies
2301 Views
Last post October 23, 2018, 2317 UTC
by pinto vortando
1 Replies
1218 Views
Last post September 13, 2018, 1350 UTC
by sat_dxer
1 Replies
1917 Views
Last post February 22, 2024, 2002 UTC
by Leftover.tech

 

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