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
544 Views
Last post September 18, 2022, 0255 UTC
by Shortwave_Listener
0 Replies
404 Views
Last post September 11, 2022, 2127 UTC
by ChrisSmolinski
0 Replies
369 Views
Last post July 15, 2023, 0459 UTC
by Shortwave_Listener
0 Replies
391 Views
Last post September 11, 2022, 1851 UTC
by ChrisSmolinski
0 Replies
710 Views
Last post December 18, 2016, 0444 UTC
by refmo
0 Replies
1307 Views
Last post May 24, 2015, 1622 UTC
by ChrisSmolinski
0 Replies
367 Views
Last post September 18, 2022, 1353 UTC
by ChrisSmolinski
0 Replies
395 Views
Last post September 14, 2022, 0157 UTC
by Skipmuck
0 Replies
948 Views
Last post May 10, 2013, 1658 UTC
by ChrisSmolinski
0 Replies
818 Views
Last post May 10, 2013, 1223 UTC
by ChrisSmolinski
0 Replies
758 Views
Last post May 10, 2013, 1157 UTC
by ChrisSmolinski
0 Replies
857 Views
Last post May 10, 2013, 1152 UTC
by ChrisSmolinski
0 Replies
404 Views
Last post September 03, 2022, 2201 UTC
by ChrisSmolinski
0 Replies
485 Views
Last post September 09, 2022, 0311 UTC
by Shortwave_Listener
0 Replies
953 Views
Last post May 09, 2013, 2353 UTC
by BBR
0 Replies
893 Views
Last post May 09, 2013, 1221 UTC
by ChrisSmolinski
0 Replies
492 Views
Last post February 27, 2022, 0942 UTC
by Ray Lalleu
0 Replies
736 Views
Last post December 14, 2016, 1627 UTC
by ChrisSmolinski
0 Replies
569 Views
Last post December 13, 2016, 1623 UTC
by ChrisSmolinski
0 Replies
526 Views
Last post December 13, 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