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
2 Replies
4130 Views
Last post March 08, 2019, 2014 UTC
by ChrisSmolinski
0 Replies
2215 Views
Last post November 04, 2016, 2222 UTC
by ChrisSmolinski
0 Replies
2516 Views
Last post January 20, 2015, 2304 UTC
by ChrisSmolinski
1 Replies
1942 Views
Last post October 23, 2020, 1414 UTC
by ChrisSmolinski
0 Replies
3338 Views
Last post February 27, 2019, 2015 UTC
by ChrisSmolinski
5 Replies
4409 Views
Last post October 19, 2016, 2316 UTC
by ChrisSmolinski
0 Replies
2297 Views
Last post October 20, 2017, 1607 UTC
by ChrisSmolinski
0 Replies
2404 Views
Last post December 28, 2014, 1739 UTC
by ChrisSmolinski
0 Replies
2832 Views
Last post January 06, 2019, 1835 UTC
by ChrisSmolinski
0 Replies
2696 Views
Last post December 26, 2014, 2221 UTC
by ChrisSmolinski
0 Replies
67 Views
Last post May 01, 2025, 1855 UTC
by ChrisSmolinski
37 Replies
21567 Views
Last post December 01, 2018, 1635 UTC
by pnoelw
0 Replies
4101 Views
Last post September 01, 2017, 1958 UTC
by ChrisSmolinski
4 Replies
3949 Views
Last post August 24, 2016, 1810 UTC
by ChrisSmolinski
0 Replies
4923 Views
Last post November 15, 2014, 1831 UTC
by ChrisSmolinski
0 Replies
1697 Views
Last post February 23, 2022, 1718 UTC
by ChrisSmolinski
2 Replies
4234 Views
Last post November 28, 2018, 1430 UTC
by ChrisSmolinski
9 Replies
6188 Views
Last post August 04, 2017, 2356 UTC
by skeezix
1 Replies
3166 Views
Last post August 18, 2016, 1513 UTC
by ChrisSmolinski
0 Replies
3940 Views
Last post October 01, 2014, 2359 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 House Flag
by MitchellTimeDesigns