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
6 Replies
938 Views
Last post September 14, 2022, 1649 UTC
by aurora
0 Replies
886 Views
Last post August 04, 2015, 2326 UTC
by Claudio Italy
0 Replies
644 Views
Last post October 20, 2019, 2026 UTC
by Claudio Italy
0 Replies
896 Views
Last post August 04, 2015, 2337 UTC
by Claudio Italy
1 Replies
1073 Views
Last post January 09, 2017, 1352 UTC
by Jari Finland
1 Replies
1108 Views
Last post January 13, 2017, 2018 UTC
by Gino Italy
1 Replies
928 Views
Last post December 04, 2016, 1754 UTC
by Claudio Italy
0 Replies
1018 Views
Last post August 25, 2018, 2324 UTC
by ChrisSmolinski
1 Replies
792 Views
Last post January 16, 2019, 2057 UTC
by Josh
0 Replies
846 Views
Last post March 21, 2019, 2250 UTC
by ChrisSmolinski
0 Replies
542 Views
Last post May 25, 2020, 1300 UTC
by Big Badfish Al
3 Replies
1665 Views
Last post November 27, 2015, 0119 UTC
by ChrisLobdell
1 Replies
891 Views
Last post September 29, 2020, 1554 UTC
by Radio Star
2 Replies
1193 Views
Last post March 22, 2018, 1801 UTC
by JoeFLIPS
CYOT eQSL

Started by S. McArdle

1 Replies
1440 Views
Last post January 20, 2014, 0422 UTC
by Evil Elvis
CYOT eQSL

Started by PirateSWL

0 Replies
610 Views
Last post September 27, 2019, 1909 UTC
by PirateSWL
1 Replies
706 Views
Last post April 18, 2020, 0310 UTC
by myteaquinn
1 Replies
1832 Views
Last post January 12, 2013, 2134 UTC
by Pigmeat
3 Replies
1647 Views
Last post May 27, 2016, 0105 UTC
by oly1959
6 Replies
1840 Views
Last post May 10, 2016, 2301 UTC
by CoolAM Radio

 

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