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
1577 Views
Last post November 25, 2022, 1627 UTC
by Shortwave_Listener
11 Replies
4577 Views
Last post February 09, 2015, 2346 UTC
by BDM
11 Replies
2805 Views
Last post April 13, 2014, 0320 UTC
by jFarley
18 Replies
3560 Views
Last post September 02, 2018, 1524 UTC
by ChrisSmolinski
7 Replies
1015 Views
Last post February 12, 2023, 1424 UTC
by ChrisSmolinski
0 Replies
547 Views
Last post February 20, 2023, 2012 UTC
by Big Badfish Al
2 Replies
851 Views
Last post March 06, 2021, 1647 UTC
by ChrisSmolinski
1 Replies
1050 Views
Last post June 24, 2020, 1839 UTC
by ChrisSmolinski
2 Replies
1102 Views
Last post February 28, 2020, 1458 UTC
by ChrisSmolinski
0 Replies
731 Views
Last post January 31, 2020, 1833 UTC
by ChrisSmolinski
0 Replies
886 Views
Last post July 07, 2020, 1817 UTC
by ChrisSmolinski
0 Replies
732 Views
Last post February 16, 2021, 1807 UTC
by ChrisSmolinski
1 Replies
903 Views
Last post May 16, 2021, 1659 UTC
by ChrisSmolinski
0 Replies
479 Views
Last post June 19, 2023, 1731 UTC
by Big Badfish Al
0 Replies
696 Views
Last post January 29, 2020, 1559 UTC
by ChrisSmolinski
0 Replies
771 Views
Last post May 02, 2020, 1538 UTC
by ChrisSmolinski
0 Replies
845 Views
Last post November 06, 2019, 1546 UTC
by ChrisSmolinski
0 Replies
1108 Views
Last post September 09, 2019, 1445 UTC
by ChrisSmolinski
1 Replies
686 Views
Last post May 04, 2023, 1643 UTC
by ChrisSmolinski
0 Replies
1720 Views
Last post November 25, 2010, 2103 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