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
2695 Views
Last post December 01, 2018, 0149 UTC
by Token
14 Replies
2695 Views
Last post May 27, 2017, 1427 UTC
by ChrisSmolinski
8 Replies
2695 Views
Last post April 26, 2025, 0209 UTC
by Charlie_Dont_Surf
5 Replies
2695 Views
Last post July 28, 2017, 1725 UTC
by ChrisSmolinski
10 Replies
2696 Views
Last post September 06, 2016, 0111 UTC
by Markokpik
13 Replies
2696 Views
Last post March 25, 2020, 0127 UTC
by cheesehed
6925 00:40UTC

Started by cpuerror

4 Replies
2696 Views
Last post June 03, 2009, 1416 UTC
by cpuerror
10 Replies
2697 Views
Last post June 07, 2014, 0117 UTC
by glimmer twin
11 Replies
2699 Views
Last post April 09, 2014, 0208 UTC
by oly1959
15 Replies
2699 Views
Last post May 15, 2021, 2301 UTC
by ~SIGINT~
6 Replies
2699 Views
Last post October 22, 2017, 1555 UTC
by MDK2
15 Replies
2699 Views
Last post June 15, 2018, 1852 UTC
by ChrisSmolinski
5 Replies
2700 Views
Last post November 18, 2012, 1523 UTC
by ChrisSmolinski
4 Replies
2701 Views
Last post June 24, 2025, 2020 UTC
by ChrisSmolinski
10 Replies
2701 Views
Last post April 16, 2014, 1339 UTC
by ChrisSmolinski
10 Replies
2701 Views
Last post October 20, 2013, 1508 UTC
by ChrisSmolinski
6 Replies
2701 Views
Last post August 07, 2014, 0008 UTC
by thechoat
8 Replies
2702 Views
Last post January 19, 2014, 2246 UTC
by DeltaCharlie
8 Replies
2702 Views
Last post June 17, 2016, 1322 UTC
by Edward Insinger
17 Replies
2703 Views
Last post December 15, 2024, 1910 UTC
by N2MLP

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground Mug
HFUnderground Mug
by MitchellTimeDesigns