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
22184 Views
Last post December 31, 2019, 1409 UTC
by R4002
0 Replies
11252 Views
Last post April 15, 2017, 0413 UTC
by R4002
0 Replies
312 Views
Last post April 21, 2025, 0014 UTC
by DangerKitty
2 Replies
925 Views
Last post April 13, 2025, 1256 UTC
by Yagiman
0 Replies
162 Views
Last post April 13, 2025, 0003 UTC
by Mick Boyle
2 Replies
299 Views
Last post April 12, 2025, 0402 UTC
by Paul Turkk
0 Replies
225 Views
Last post April 11, 2025, 0359 UTC
by Shortwave_Listener
0 Replies
255 Views
Last post April 04, 2025, 1634 UTC
by R4002
2 Replies
778 Views
Last post April 03, 2025, 0223 UTC
by Charlie_Dont_Surf
0 Replies
537 Views
Last post March 17, 2025, 2302 UTC
by boston_strangler
0 Replies
2576 Views
Last post March 03, 2025, 0505 UTC
by Robot Matrix
1 Replies
3215 Views
Last post February 21, 2025, 2235 UTC
by Shortwave_Listener
0 Replies
486 Views
Last post February 21, 2025, 2156 UTC
by R4002
0 Replies
660 Views
Last post February 19, 2025, 1851 UTC
by bgqman
0 Replies
855 Views
Last post February 17, 2025, 1942 UTC
by bgqman
0 Replies
1428 Views
Last post February 12, 2025, 1656 UTC
by R4002
0 Replies
758 Views
Last post February 12, 2025, 1637 UTC
by R4002
1 Replies
2305 Views
Last post January 28, 2025, 1800 UTC
by Shortwave_Listener
0 Replies
448 Views
Last post January 28, 2025, 1736 UTC
by R4002
0 Replies
593 Views
Last post January 23, 2025, 0101 UTC
by myteaquinn

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground T-Shirt
by MitchellTimeDesigns