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
3 Replies
795 Views
Last post November 13, 2023, 0041 UTC
by Dr. Strangelove
13 Replies
1416 Views
Last post November 11, 2023, 1052 UTC
by N2MLP
10 Replies
930 Views
Last post November 11, 2023, 1355 UTC
by Ct Yankee
3 Replies
690 Views
Last post June 11, 2023, 0525 UTC
by Grumpy Grandpa
9 Replies
2369 Views
Last post October 14, 2023, 1635 UTC
by ✠ Blue Max
9 Replies
1778 Views
Last post October 10, 2023, 1215 UTC
by ChrisSmolinski
6 Replies
884 Views
Last post January 22, 2023, 1607 UTC
by Pigmeat
7 Replies
1016 Views
Last post February 05, 2022, 2211 UTC
by Andrew Yoder
10 Replies
351 Views
Last post September 19, 2025, 2200 UTC
by ChrisSmolinski
5 Replies
937 Views
Last post October 12, 2020, 2301 UTC
by myteaquinn
5 Replies
1594 Views
Last post November 01, 2015, 1715 UTC
by ChrisSmolinski
3 Replies
1697 Views
Last post January 11, 2015, 1721 UTC
by Kilokat7
0 Replies
1190 Views
Last post January 01, 2014, 1514 UTC
by ChrisSmolinski
7 Replies
1796 Views
Last post April 10, 2018, 1403 UTC
by ChrisSmolinski
3 Replies
1264 Views
Last post August 27, 2012, 2114 UTC
by jFarley
7 Replies
2374 Views
Last post September 24, 2017, 1741 UTC
by Josh
3 Replies
1341 Views
Last post November 18, 2015, 2250 UTC
by aurora
8 Replies
2016 Views
Last post September 20, 2016, 0002 UTC
by MDK2
5 Replies
1466 Views
Last post April 24, 2016, 1441 UTC
by ChrisSmolinski
4 Replies
1596 Views
Last post January 12, 2019, 2333 UTC
by Josh

 

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