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
11 Replies
477 Views
Last post June 28, 2025, 2328 UTC
by ChrisLobdell
13 Replies
1400 Views
Last post October 13, 2024, 0236 UTC
by Shortwave_Listener
1 Replies
377 Views
Last post November 10, 2022, 0057 UTC
by ~SIGINT~
17 Replies
1882 Views
Last post September 16, 2023, 0008 UTC
by dxace1
14 Replies
1315 Views
Last post March 30, 2025, 1309 UTC
by Radio Star
8 Replies
1285 Views
Last post December 10, 2023, 2242 UTC
by ve6pg
28 Replies
2139 Views
Last post January 01, 2023, 2309 UTC
by caodwolf
17 Replies
2813 Views
Last post May 25, 2025, 0553 UTC
by CaptainMitchell
3 Replies
399 Views
Last post July 01, 2023, 0159 UTC
by Molvania Poacher
15 Replies
2337 Views
Last post February 25, 2023, 0020 UTC
by Shortwave_Listener
7 Replies
512 Views
Last post July 21, 2025, 0148 UTC
by Sarge94
9 Replies
1132 Views
Last post January 28, 2023, 0329 UTC
by Pigmeat
1 Replies
322 Views
Last post December 09, 2023, 0024 UTC
by myteaquinn
20 Replies
1594 Views
Last post June 21, 2025, 0150 UTC
by corq
17 Replies
1716 Views
Last post November 01, 2024, 0205 UTC
by Molvania Poacher
13 Replies
1296 Views
Last post October 15, 2023, 0126 UTC
by Sarge94
18 Replies
3766 Views
Last post April 23, 2025, 0305 UTC
by Andrew Yoder
10 Replies
980 Views
Last post September 04, 2023, 2303 UTC
by Ken Miller
10 Replies
653 Views
Last post March 23, 2025, 0134 UTC
by Markokpik
21 Replies
2209 Views
Last post March 10, 2024, 0204 UTC
by taschenrechner

 

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