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
582 Views
Last post July 21, 2019, 2110 UTC
by kris
1 Replies
579 Views
Last post August 31, 2018, 1956 UTC
by kris
2 Replies
454 Views
Last post April 18, 2020, 2209 UTC
by Skipmuck
0 Replies
558 Views
Last post July 19, 2019, 2013 UTC
by Jari Finland
0 Replies
387 Views
Last post March 29, 2019, 1948 UTC
by Ray Lalleu
2 Replies
517 Views
Last post April 04, 2020, 2135 UTC
by Skipmuck
1 Replies
439 Views
Last post March 23, 2019, 1758 UTC
by kris
1 Replies
435 Views
Last post May 03, 2019, 1703 UTC
by Ray Lalleu
0 Replies
355 Views
Last post February 23, 2019, 1520 UTC
by Ray Lalleu
2 Replies
363 Views
Last post December 24, 2022, 1513 UTC
by Funkenblitz
3 Replies
1359 Views
Last post July 17, 2016, 0043 UTC
by JoeFLIPS
3 Replies
399 Views
Last post July 21, 2024, 0839 UTC
by Benoit LEVEQUE
3 Replies
459 Views
Last post July 14, 2024, 0840 UTC
by Benoit LEVEQUE
5 Replies
2156 Views
Last post March 23, 2014, 0010 UTC
by Kilokat7
10 Replies
3620 Views
Last post March 22, 2014, 1646 UTC
by Evil Elvis
1 Replies
813 Views
Last post April 14, 2017, 2051 UTC
by ChrisSmolinski
0 Replies
391 Views
Last post February 09, 2019, 1419 UTC
by Ray Lalleu
2 Replies
598 Views
Last post July 13, 2018, 2002 UTC
by kris
1 Replies
606 Views
Last post August 25, 2018, 1941 UTC
by dxace1
8 Replies
1973 Views
Last post April 20, 2019, 0003 UTC
by Ct Yankee

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground House Flag
by MitchellTimeDesigns