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
1 Replies
341 Views
Last post October 23, 2022, 1522 UTC
by Bali_Frank
1 Replies
341 Views
Last post April 30, 2023, 1639 UTC
by Ray Lalleu
0 Replies
341 Views
Last post September 22, 2020, 1733 UTC
by Ray Lalleu
1 Replies
341 Views
Last post November 12, 2022, 1810 UTC
by Ray Lalleu
0 Replies
341 Views
Last post March 13, 2024, 2343 UTC
by Ray Lalleu
1 Replies
341 Views
Last post December 25, 2023, 1852 UTC
by RainBrandy
0 Replies
341 Views
Last post September 06, 2020, 1115 UTC
by Ray Lalleu
0 Replies
341 Views
Last post February 23, 2025, 2010 UTC
by Ray Lalleu
1 Replies
341 Views
Last post December 31, 2024, 1324 UTC
by Ray Lalleu
2 Replies
341 Views
Last post November 26, 2023, 1132 UTC
by europirate
1 Replies
341 Views
Last post December 24, 2022, 2041 UTC
by Ray Lalleu
0 Replies
341 Views
Last post February 10, 2024, 0202 UTC
by Panda_NL
1 Replies
341 Views
Last post June 09, 2023, 0009 UTC
by N2MLP
0 Replies
341 Views
Last post February 01, 2020, 0931 UTC
by Ray Lalleu
0 Replies
341 Views
Last post September 03, 2020, 1912 UTC
by Ray Lalleu
0 Replies
341 Views
Last post September 14, 2022, 0731 UTC
by Ray Lalleu
0 Replies
341 Views
Last post January 27, 2023, 0830 UTC
by dave1965
3 Replies
342 Views
Last post August 23, 2025, 2224 UTC
by Ray Lalleu
1 Replies
342 Views
Last post March 02, 2025, 1134 UTC
by Ray Lalleu
0 Replies
342 Views
Last post October 05, 2023, 1620 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 T-Shirt
by MitchellTimeDesigns