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
1356 Views
Last post January 18, 2022, 1743 UTC
by ChrisSmolinski
1 Replies
916 Views
Last post December 20, 2018, 2322 UTC
by ChrisSmolinski
1 Replies
1034 Views
Last post December 20, 2018, 2326 UTC
by Ray Lalleu
1 Replies
864 Views
Last post March 31, 2022, 2237 UTC
by ~SIGINT~
1 Replies
1118 Views
Last post January 02, 2019, 1354 UTC
by ChrisSmolinski
1 Replies
980 Views
Last post January 08, 2019, 2307 UTC
by ChrisSmolinski
1 Replies
825 Views
Last post April 30, 2022, 2350 UTC
by ChrisSmolinski
1 Replies
1137 Views
Last post January 10, 2019, 0126 UTC
by Ray Lalleu
1 Replies
973 Views
Last post April 30, 2022, 2355 UTC
by Shortwave_Listener
1 Replies
1073 Views
Last post January 12, 2019, 1517 UTC
by ChrisSmolinski
1 Replies
771 Views
Last post July 13, 2022, 2218 UTC
by Bali_Frank
1 Replies
998 Views
Last post January 14, 2019, 2258 UTC
by R4002
1 Replies
843 Views
Last post July 16, 2022, 2217 UTC
by Bali_Frank
1 Replies
723 Views
Last post September 01, 2022, 1717 UTC
by Shortwave_Listener
1 Replies
710 Views
Last post September 02, 2022, 1523 UTC
by Shortwave_Listener
1 Replies
1178 Views
Last post January 17, 2019, 1114 UTC
by ChrisSmolinski
1 Replies
1030 Views
Last post January 19, 2019, 2352 UTC
by Ray Lalleu
1 Replies
1054 Views
Last post January 21, 2019, 1257 UTC
by ChrisSmolinski
1 Replies
952 Views
Last post January 21, 2019, 2350 UTC
by Ray Lalleu
1 Replies
728 Views
Last post September 24, 2022, 2015 UTC
by TRI International

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground Mug
HFUnderground Mug
by MitchellTimeDesigns