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
1491 Views
Last post August 03, 2014, 0122 UTC
by Ross Comeau
1 Replies
1099 Views
Last post June 12, 2016, 0045 UTC
by JoeFLIPS
1 Replies
502 Views
Last post March 25, 2025, 2106 UTC
by Ray Lalleu
0 Replies
202 Views
Last post February 11, 2024, 1811 UTC
by Ronald_Mullis
1 Replies
1525 Views
Last post February 24, 2018, 2125 UTC
by Ray Lalleu
1 Replies
322 Views
Last post October 29, 2024, 0055 UTC
by kris
1 Replies
462 Views
Last post February 11, 2024, 1825 UTC
by Ray Lalleu
2 Replies
487 Views
Last post July 23, 2022, 2033 UTC
by Shortwave_Listener
2 Replies
650 Views
Last post December 18, 2021, 2233 UTC
by Ronald_Mullis
0 Replies
430 Views
Last post December 28, 2021, 1742 UTC
by Ronald_Mullis
3 Replies
705 Views
Last post August 29, 2021, 2023 UTC
by Ray Lalleu
1 Replies
210 Views
Last post January 11, 2025, 1923 UTC
by Ray Lalleu
0 Replies
186 Views
Last post January 11, 2025, 2035 UTC
by Ronald_Mullis
0 Replies
296 Views
Last post December 24, 2024, 2034 UTC
by Ronald_Mullis
2 Replies
718 Views
Last post October 23, 2021, 1853 UTC
by kobalts
0 Replies
402 Views
Last post July 04, 2020, 0606 UTC
by Ronald_Mullis
3 Replies
650 Views
Last post July 12, 2021, 2334 UTC
by Ray Lalleu
2 Replies
625 Views
Last post July 04, 2021, 1154 UTC
by Ronald_Mullis
3 Replies
654 Views
Last post September 28, 2021, 0708 UTC
by Ronald_Mullis
2 Replies
701 Views
Last post December 30, 2021, 2309 UTC
by Ray Lalleu

 

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