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
1128 Views
Last post November 21, 2014, 0032 UTC
by Skipmuck
0 Replies
427 Views
Last post December 22, 2021, 2339 UTC
by ulx2
3 Replies
1271 Views
Last post February 19, 2017, 0021 UTC
by ulx2
0 Replies
408 Views
Last post December 25, 2021, 1532 UTC
by ulx2
0 Replies
1095 Views
Last post February 09, 2016, 0042 UTC
by ulx2
0 Replies
882 Views
Last post December 14, 2016, 2335 UTC
by ulx2
1 Replies
458 Views
Last post April 12, 2021, 2207 UTC
by kris
4 Replies
2346 Views
Last post November 21, 2014, 0103 UTC
by ulx2
1 Replies
520 Views
Last post December 25, 2021, 0108 UTC
by kris
2 Replies
456 Views
Last post November 13, 2021, 2202 UTC
by Bali_Frank
2 Replies
513 Views
Last post February 19, 2022, 1425 UTC
by TRI International
3 Replies
876 Views
Last post February 28, 2022, 0241 UTC
by East Troy Don
0 Replies
1113 Views
Last post February 10, 2016, 0013 UTC
by ulx2
1 Replies
643 Views
Last post April 20, 2019, 2332 UTC
by Ray Lalleu
1 Replies
810 Views
Last post October 16, 2016, 1517 UTC
by ChrisSmolinski
0 Replies
790 Views
Last post November 13, 2016, 0024 UTC
by ulx2
0 Replies
750 Views
Last post December 09, 2017, 2357 UTC
by ulx2
0 Replies
417 Views
Last post November 13, 2021, 2335 UTC
by ulx2
6 Replies
910 Views
Last post November 27, 2021, 2357 UTC
by Radio Star
1 Replies
794 Views
Last post October 16, 2016, 1508 UTC
by ChrisSmolinski

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns