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
373 Views
Last post January 07, 2025, 1639 UTC
by HB9ILL
0 Replies
880 Views
Last post March 15, 2015, 1553 UTC
by ChrisSmolinski
1 Replies
236 Views
Last post December 26, 2023, 1702 UTC
by Ray Lalleu
2 Replies
384 Views
Last post August 16, 2024, 2357 UTC
by Ray Lalleu
0 Replies
136 Views
Last post December 08, 2024, 1445 UTC
by Ray Lalleu
3 Replies
318 Views
Last post December 07, 2024, 1507 UTC
by Grey Fox
0 Replies
149 Views
Last post December 29, 2024, 1935 UTC
by Ray Lalleu
0 Replies
136 Views
Last post December 07, 2024, 1416 UTC
by Ray Lalleu
1 Replies
417 Views
Last post December 25, 2023, 0901 UTC
by Fisherman
1 Replies
1339 Views
Last post February 01, 2015, 1425 UTC
by er1c
4 Replies
2231 Views
Last post May 10, 2014, 0029 UTC
by Skipmuck
1 Replies
1304 Views
Last post October 26, 2014, 0032 UTC
by Skipmuck
1 Replies
474 Views
Last post December 25, 2023, 0932 UTC
by Ray Lalleu
3 Replies
499 Views
Last post October 28, 2023, 1403 UTC
by Dxcan
2 Replies
545 Views
Last post June 27, 2022, 1949 UTC
by kris
0 Replies
236 Views
Last post January 11, 2025, 1223 UTC
by europirate
0 Replies
345 Views
Last post May 06, 2023, 1108 UTC
by FOX
4 Replies
580 Views
Last post December 24, 2022, 1530 UTC
by Ronald_Mullis
0 Replies
241 Views
Last post November 19, 2022, 1334 UTC
by Ray Lalleu
1 Replies
279 Views
Last post November 02, 2024, 1449 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 Garden Flag
by MitchellTimeDesigns