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
1384 Views
Last post September 18, 2014, 0453 UTC
by AbnersFarm
Gulfstream IV aircraft

Started by crossfire

3 Replies
2472 Views
Last post October 28, 2012, 0231 UTC
by crossfire
2 Replies
803 Views
Last post October 06, 2023, 0908 UTC
by TRI International
2 Replies
1743 Views
Last post March 08, 2013, 0439 UTC
by glimmer twin
1 Replies
451 Views
Last post May 10, 2024, 0246 UTC
by Shortwave_Listener
0 Replies
1391 Views
Last post March 08, 2013, 0230 UTC
by Cornelius
2 Replies
994 Views
Last post March 27, 2019, 1810 UTC
by Josh
3 Replies
2376 Views
Last post March 08, 2013, 0251 UTC
by jFarley
6 Replies
3597 Views
Last post March 09, 2013, 0114 UTC
by jFarley
2 Replies
1694 Views
Last post April 02, 2019, 1913 UTC
by Strange Beacons
1 Replies
970 Views
Last post March 26, 2022, 1928 UTC
by Sparx
0 Replies
386 Views
Last post January 13, 2025, 0624 UTC
by Robot Matrix
0 Replies
1448 Views
Last post July 11, 2017, 0041 UTC
by R4002
0 Replies
402 Views
Last post January 07, 2024, 0947 UTC
by RobRich
2 Replies
1042 Views
Last post December 14, 2022, 0220 UTC
by ~SIGINT~
2 Replies
658 Views
Last post September 24, 2022, 0430 UTC
by AbnersFarm
0 Replies
1193 Views
Last post October 30, 2017, 0318 UTC
by Davep
0 Replies
2796 Views
Last post May 27, 2012, 1452 UTC
by ChrisSmolinski
0 Replies
603 Views
Last post October 31, 2023, 0257 UTC
by Nomadiq
0 Replies
1387 Views
Last post January 25, 2018, 2324 UTC
by R4002

 

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