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
2 Replies
702 Views
Last post February 25, 2025, 1934 UTC
by ChrisSmolinski
0 Replies
489 Views
Last post February 25, 2025, 2024 UTC
by Skipmuck
0 Replies
385 Views
Last post February 26, 2025, 1133 UTC
by ChrisSmolinski
2 Replies
640 Views
Last post February 26, 2025, 1419 UTC
by Radiouser
20 Replies
3519 Views
Last post February 26, 2025, 1641 UTC
by Sealord
15 Replies
4356 Views
Last post February 26, 2025, 1643 UTC
by Sealord
18 Replies
2864 Views
Last post February 26, 2025, 1647 UTC
by Sealord
6 Replies
853 Views
Last post February 26, 2025, 2230 UTC
by Professor
9 Replies
1077 Views
Last post February 26, 2025, 2232 UTC
by Professor
8 Replies
1225 Views
Last post February 27, 2025, 0039 UTC
by Sky Waves
6 Replies
1184 Views
Last post February 27, 2025, 0340 UTC
by Zoidberg
8 Replies
2204 Views
Last post February 27, 2025, 1654 UTC
by ChrisSmolinski
1 Replies
848 Views
Last post February 27, 2025, 1946 UTC
by brotherstair
19 Replies
4508 Views
Last post February 27, 2025, 2159 UTC
by brotherstair
7 Replies
824 Views
Last post February 27, 2025, 2219 UTC
by Chuck54
1 Replies
468 Views
Last post February 28, 2025, 1240 UTC
by Nomadiq
0 Replies
418 Views
Last post February 28, 2025, 1247 UTC
by ChrisSmolinski
4 Replies
774 Views
Last post February 28, 2025, 1319 UTC
by ChrisSmolinski
3 Replies
719 Views
Last post February 28, 2025, 1820 UTC
by Radiouser
0 Replies
443 Views
Last post February 28, 2025, 1826 UTC
by Skipmuck

 

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