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
3 Replies
589 Views
Last post September 12, 2024, 2240 UTC
by myteaquinn
2 Replies
589 Views
Last post October 26, 2021, 1932 UTC
by myteaquinn
4 Replies
589 Views
Last post May 08, 2023, 0015 UTC
by Bali_Frank
9 Replies
589 Views
Last post May 05, 2025, 0250 UTC
by Nielsbo
5 Replies
589 Views
Last post November 25, 2023, 0341 UTC
by Flamin' Groovies
1 Replies
589 Views
Last post February 28, 2021, 1351 UTC
by TRI International
3 Replies
589 Views
Last post May 29, 2022, 0027 UTC
by Shortwave_Listener
1 Replies
590 Views
Last post May 13, 2019, 2146 UTC
by dxace1
0 Replies
590 Views
Last post April 21, 2020, 1306 UTC
by ChrisSmolinski
2 Replies
590 Views
Last post August 23, 2024, 2302 UTC
by N2MLP
0 Replies
590 Views
Last post July 14, 2019, 1251 UTC
by ChrisSmolinski
0 Replies
590 Views
Last post June 25, 2017, 2236 UTC
by ChrisSmolinski
0 Replies
590 Views
Last post April 01, 2017, 1733 UTC
by ChrisSmolinski
3 Replies
590 Views
Last post February 25, 2023, 1253 UTC
by RainBrandy
13 Replies
590 Views
Last post April 06, 2025, 2112 UTC
by sternradio666
4 Replies
590 Views
Last post April 02, 2024, 1855 UTC
by dxwingr
0 Replies
590 Views
Last post December 24, 2019, 2140 UTC
by digitalmod
0 Replies
590 Views
Last post July 14, 2019, 1240 UTC
by ChrisSmolinski
0 Replies
590 Views
Last post December 24, 2016, 1739 UTC
by ChrisSmolinski
2 Replies
590 Views
Last post October 09, 2022, 0011 UTC
by Pigmeat

 

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