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
0 Replies
423 Views
Last post June 23, 2023, 2231 UTC
by kris
0 Replies
413 Views
Last post October 29, 2022, 1755 UTC
by kris
0 Replies
1760 Views
Last post March 17, 2018, 2343 UTC
by kris
0 Replies
1375 Views
Last post March 14, 2019, 2202 UTC
by kris
0 Replies
1075 Views
Last post February 22, 2020, 0014 UTC
by kris
1 Replies
435 Views
Last post November 27, 2022, 2201 UTC
by Shortwave_Listener
0 Replies
518 Views
Last post July 25, 2022, 2040 UTC
by kris
0 Replies
393 Views
Last post December 03, 2022, 2030 UTC
by kris
3 Replies
661 Views
Last post December 21, 2023, 2039 UTC
by Mick Boyle
0 Replies
1305 Views
Last post March 18, 2019, 0605 UTC
by kris
0 Replies
584 Views
Last post September 25, 2022, 1844 UTC
by kris
0 Replies
559 Views
Last post June 25, 2022, 2341 UTC
by kris
0 Replies
1021 Views
Last post February 22, 2020, 0034 UTC
by kris
0 Replies
545 Views
Last post July 13, 2022, 2319 UTC
by kris
0 Replies
379 Views
Last post March 14, 2023, 1944 UTC
by kris
0 Replies
1357 Views
Last post March 18, 2019, 0609 UTC
by kris
0 Replies
1062 Views
Last post January 13, 2020, 2352 UTC
by kris
0 Replies
445 Views
Last post January 17, 2024, 0008 UTC
by kris
0 Replies
512 Views
Last post June 26, 2022, 2239 UTC
by kris
0 Replies
388 Views
Last post April 25, 2023, 2021 UTC
by kris

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground House Flag
by MitchellTimeDesigns