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
1627 Views
Last post November 30, 2013, 2155 UTC
by Token
4 Replies
1303 Views
Last post August 23, 2024, 2315 UTC
by UtilitySeattle
2 Replies
1126 Views
Last post January 16, 2020, 1923 UTC
by Josh
1 Replies
1579 Views
Last post July 30, 2024, 2118 UTC
by N2MLP
4 Replies
3924 Views
Last post March 04, 2012, 2012 UTC
by ETM71
0 Replies
2381 Views
Last post March 03, 2012, 2226 UTC
by ETM71
0 Replies
708 Views
Last post May 06, 2021, 2257 UTC
by ~SIGINT~
0 Replies
1116 Views
Last post September 22, 2015, 2252 UTC
by flexoman61
2 Replies
915 Views
Last post June 12, 2024, 1658 UTC
by prldx
6 Replies
1808 Views
Last post July 21, 2018, 1828 UTC
by Josh
6 Replies
1640 Views
Last post March 21, 2020, 1546 UTC
by Andrew Yoder
2 Replies
3403 Views
Last post June 07, 2011, 1735 UTC
by stevechisox
2 Replies
1561 Views
Last post January 16, 2025, 2300 UTC
by n2avh
2 Replies
2075 Views
Last post March 28, 2016, 2136 UTC
by Token
0 Replies
1722 Views
Last post December 26, 2015, 0337 UTC
by sat_dxer
0 Replies
1777 Views
Last post September 23, 2015, 1527 UTC
by flexoman61
1 Replies
1025 Views
Last post February 23, 2018, 2232 UTC
by ChrisSmolinski
2 Replies
862 Views
Last post June 15, 2024, 2116 UTC
by kris
1 Replies
1048 Views
Last post October 20, 2023, 1012 UTC
by manfredo
0 Replies
1177 Views
Last post February 04, 2020, 0245 UTC
by ButchKidd

 

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