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
16 Replies
1957 Views
Last post September 19, 2023, 1407 UTC
by ChrisSmolinski
0 Replies
326 Views
Last post September 18, 2023, 2205 UTC
by Ray Lalleu
0 Replies
266 Views
Last post September 18, 2023, 2135 UTC
by Shortwave_Listener
0 Replies
256 Views
Last post September 18, 2023, 1706 UTC
by ChrisSmolinski
0 Replies
294 Views
Last post September 18, 2023, 1128 UTC
by ChrisSmolinski
8 Replies
1210 Views
Last post September 18, 2023, 0138 UTC
by William Hassig
9 Replies
1182 Views
Last post September 17, 2023, 2130 UTC
by Big Badfish Al
4 Replies
588 Views
Last post September 17, 2023, 2119 UTC
by dxwingr
5 Replies
828 Views
Last post September 17, 2023, 1908 UTC
by bcoggs
6 Replies
544 Views
Last post September 17, 2023, 1753 UTC
by Molvania Poacher
3 Replies
398 Views
Last post September 17, 2023, 1731 UTC
by N2MLP
2 Replies
522 Views
Last post September 17, 2023, 1452 UTC
by Big Badfish Al
1 Replies
345 Views
Last post September 17, 2023, 1138 UTC
by Ron - Calif.
4 Replies
777 Views
Last post September 17, 2023, 1006 UTC
by Ron - Calif.
23 Replies
1862 Views
Last post September 17, 2023, 0315 UTC
by Markokpik
7 Replies
701 Views
Last post September 17, 2023, 0252 UTC
by Markokpik
23 Replies
2556 Views
Last post September 17, 2023, 0130 UTC
by intellman
20 Replies
2283 Views
Last post September 17, 2023, 0115 UTC
by ~SIGINT~
2 Replies
573 Views
Last post September 17, 2023, 0048 UTC
by Molvania Poacher
0 Replies
350 Views
Last post September 16, 2023, 1736 UTC
by ChrisSmolinski

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns