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
13 Replies
1600 Views
Last post January 21, 2023, 0019 UTC
by Pigmeat
12 Replies
1502 Views
Last post September 20, 2019, 2225 UTC
by refmo
8 Replies
1690 Views
Last post June 27, 2021, 0316 UTC
by Davep
15 Replies
1335 Views
Last post July 30, 2023, 0253 UTC
by BigAl
6 Replies
2355 Views
Last post May 26, 2014, 1724 UTC
by vinylman
6 Replies
597 Views
Last post January 19, 2025, 0315 UTC
by N2MLP
5 Replies
1535 Views
Last post December 25, 2019, 0458 UTC
by refmo
3 Replies
366 Views
Last post July 21, 2025, 0004 UTC
by N2MLP
0 Replies
581 Views
Last post December 02, 2020, 0021 UTC
by myteaquinn
9 Replies
646 Views
Last post January 25, 2025, 0318 UTC
by V-SKY
9 Replies
1221 Views
Last post March 20, 2023, 2120 UTC
by Pigmeat
5 Replies
891 Views
Last post June 09, 2024, 0432 UTC
by RobRich
5 Replies
2232 Views
Last post September 09, 2017, 0039 UTC
by ChrisSmolinski
6 Replies
1013 Views
Last post March 22, 2024, 0102 UTC
by Sarge94
1 Replies
533 Views
Last post January 11, 2024, 0207 UTC
by ~SIGINT~
1 Replies
1227 Views
Last post March 03, 2013, 1510 UTC
by ChrisSmolinski
10 Replies
1539 Views
Last post May 31, 2025, 0341 UTC
by Markokpik
2 Replies
1104 Views
Last post November 03, 2012, 1543 UTC
by jFarley
5 Replies
528 Views
Last post July 03, 2025, 0105 UTC
by Quasar
0 Replies
1290 Views
Last post May 16, 2010, 1529 UTC
by myteaquinn

 

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