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
287 Views
Last post November 11, 2023, 1210 UTC
by europirate
0 Replies
441 Views
Last post November 07, 2023, 1549 UTC
by Ray Lalleu
1 Replies
233 Views
Last post November 22, 2023, 1641 UTC
by dxace1
0 Replies
283 Views
Last post November 02, 2023, 1640 UTC
by Ray Lalleu
0 Replies
354 Views
Last post November 07, 2023, 1647 UTC
by Ray Lalleu
0 Replies
200 Views
Last post November 12, 2023, 1808 UTC
by Ray Lalleu
0 Replies
196 Views
Last post October 14, 2022, 1003 UTC
by dave1965
2 Replies
227 Views
Last post February 24, 2024, 2205 UTC
by Fisherman
3 Replies
532 Views
Last post May 24, 2019, 2047 UTC
by dandan22
0 Replies
201 Views
Last post February 11, 2024, 1742 UTC
by Ray Lalleu
1 Replies
233 Views
Last post March 26, 2023, 1239 UTC
by Ray Lalleu
0 Replies
307 Views
Last post August 09, 2019, 1149 UTC
by dandan22
0 Replies
187 Views
Last post March 18, 2023, 1103 UTC
by TRI International
1 Replies
424 Views
Last post July 02, 2021, 1851 UTC
by prldx
0 Replies
296 Views
Last post June 10, 2021, 1957 UTC
by Ray Lalleu
1 Replies
394 Views
Last post October 14, 2023, 2247 UTC
by N2MLP
0 Replies
88 Views
Last post August 05, 2023, 0809 UTC
by Ray Lalleu
0 Replies
129 Views
Last post June 18, 2023, 0835 UTC
by Ray Lalleu
0 Replies
107 Views
Last post July 29, 2023, 1002 UTC
by Ray Lalleu
0 Replies
122 Views
Last post April 21, 2023, 1534 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