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
751 Views
Last post July 19, 2013, 1407 UTC
by ChrisSmolinski
0 Replies
302 Views
Last post May 06, 2023, 2007 UTC
by ChrisSmolinski
0 Replies
301 Views
Last post September 16, 2023, 0004 UTC
by DangerKitty
0 Replies
706 Views
Last post August 29, 2015, 1321 UTC
by ChrisSmolinski
0 Replies
327 Views
Last post June 05, 2023, 2351 UTC
by ~SIGINT~
0 Replies
965 Views
Last post April 30, 2017, 0502 UTC
by RST111
0 Replies
795 Views
Last post June 16, 2013, 1503 UTC
by ChrisSmolinski
0 Replies
770 Views
Last post June 16, 2013, 1510 UTC
by ChrisSmolinski
0 Replies
1076 Views
Last post June 16, 2013, 1809 UTC
by Grizz489
0 Replies
895 Views
Last post June 16, 2013, 2035 UTC
by ChrisSmolinski
0 Replies
383 Views
Last post April 28, 2023, 1249 UTC
by ChrisSmolinski
0 Replies
299 Views
Last post April 18, 2023, 1240 UTC
by ChrisSmolinski
0 Replies
796 Views
Last post June 17, 2013, 1223 UTC
by ChrisSmolinski
0 Replies
299 Views
Last post May 05, 2023, 1521 UTC
by ChrisSmolinski
0 Replies
312 Views
Last post May 08, 2023, 0019 UTC
by Grumpy Grandpa
0 Replies
911 Views
Last post May 07, 2023, 1847 UTC
by Grumpy Grandpa
0 Replies
354 Views
Last post May 20, 2023, 1841 UTC
by ChrisSmolinski
0 Replies
332 Views
Last post June 04, 2023, 2222 UTC
by Grumpy Grandpa
0 Replies
298 Views
Last post May 08, 2023, 1415 UTC
by ChrisSmolinski
0 Replies
792 Views
Last post June 18, 2013, 1233 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 T-Shirt
by MitchellTimeDesigns