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
671 Views
Last post October 16, 2020, 1424 UTC
by dxace1
2 Replies
814 Views
Last post May 14, 2023, 1839 UTC
by Ray Lalleu
2 Replies
417 Views
Last post May 13, 2023, 2103 UTC
by kris
2 Replies
757 Views
Last post June 23, 2019, 1654 UTC
by Ray Lalleu
2 Replies
741 Views
Last post October 17, 2020, 1754 UTC
by Ray Lalleu
2 Replies
791 Views
Last post June 23, 2019, 1915 UTC
by texas1dxer
2 Replies
331 Views
Last post May 20, 2023, 1929 UTC
by kris
2 Replies
385 Views
Last post May 18, 2023, 1950 UTC
by Ray Lalleu
2 Replies
733 Views
Last post June 23, 2019, 2153 UTC
by texas1dxer
2 Replies
543 Views
Last post May 21, 2023, 1510 UTC
by Magnitic
2 Replies
783 Views
Last post June 24, 2019, 2025 UTC
by The Ether Hacker
2 Replies
405 Views
Last post May 17, 2023, 1657 UTC
by Misti-Radio
2 Replies
930 Views
Last post June 25, 2019, 0103 UTC
by fox558
2 Replies
916 Views
Last post June 25, 2019, 0938 UTC
by Jock Wilson
2 Replies
705 Views
Last post October 19, 2020, 1957 UTC
by Ray Lalleu
2 Replies
301 Views
Last post May 20, 2023, 1926 UTC
by kris
2 Replies
454 Views
Last post May 26, 2023, 2055 UTC
by kris
2 Replies
345 Views
Last post May 28, 2023, 1419 UTC
by Ray Lalleu
2 Replies
341 Views
Last post May 26, 2023, 2026 UTC
by Ray Lalleu
2 Replies
400 Views
Last post May 27, 2023, 1843 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 Garden Flag
by MitchellTimeDesigns