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
4 Replies
852 Views
Last post May 22, 2021, 2256 UTC
by raypfaff
0 Replies
410 Views
Last post July 04, 2020, 1627 UTC
by Ray Lalleu
0 Replies
425 Views
Last post August 27, 2019, 1656 UTC
by Ray Lalleu
0 Replies
641 Views
Last post April 24, 2018, 2000 UTC
by Ray Lalleu
0 Replies
229 Views
Last post August 27, 2023, 1840 UTC
by Ray Lalleu
0 Replies
429 Views
Last post December 25, 2019, 1529 UTC
by Ray Lalleu
0 Replies
358 Views
Last post November 29, 2024, 2120 UTC
by Ray Lalleu
1 Replies
390 Views
Last post December 28, 2022, 1722 UTC
by Shortwave_Listener
0 Replies
596 Views
Last post April 22, 2019, 1232 UTC
by Ray Lalleu
0 Replies
251 Views
Last post April 19, 2024, 0758 UTC
by Ray Lalleu
0 Replies
616 Views
Last post July 08, 2018, 1827 UTC
by Ray Lalleu
0 Replies
244 Views
Last post August 24, 2024, 2204 UTC
by Ray Lalleu
1 Replies
315 Views
Last post October 15, 2023, 1736 UTC
by Misti-Radio
0 Replies
471 Views
Last post August 11, 2022, 2152 UTC
by Ray Lalleu
0 Replies
267 Views
Last post February 20, 2020, 1404 UTC
by Ray Lalleu
1 Replies
625 Views
Last post November 23, 2018, 1857 UTC
by kris
0 Replies
182 Views
Last post January 11, 2025, 1113 UTC
by Ray Lalleu
0 Replies
258 Views
Last post February 25, 2023, 1144 UTC
by Ray Lalleu
1 Replies
575 Views
Last post January 23, 2022, 1722 UTC
by Ray Lalleu
1 Replies
559 Views
Last post March 27, 2021, 1629 UTC
by TRI International

 

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