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
0 Replies
512 Views
Last post January 15, 2019, 1513 UTC
by Ray Lalleu
0 Replies
482 Views
Last post March 22, 2019, 1606 UTC
by Ray Lalleu
0 Replies
509 Views
Last post December 05, 2021, 1649 UTC
by PLF
0 Replies
413 Views
Last post March 18, 2019, 1742 UTC
by Ray Lalleu
0 Replies
442 Views
Last post June 28, 2019, 1908 UTC
by Ray Lalleu
1 Replies
467 Views
Last post August 05, 2020, 2056 UTC
by kris
0 Replies
448 Views
Last post January 15, 2019, 1504 UTC
by Ray Lalleu
0 Replies
425 Views
Last post January 28, 2019, 1404 UTC
by Ray Lalleu
0 Replies
647 Views
Last post January 14, 2019, 1232 UTC
by Ray Lalleu
6 Replies
1509 Views
Last post March 26, 2018, 2044 UTC
by Skipmuck
0 Replies
409 Views
Last post March 20, 2021, 1550 UTC
by Ray Lalleu
0 Replies
341 Views
Last post May 31, 2020, 1056 UTC
by Ray Lalleu
0 Replies
205 Views
Last post December 06, 2024, 1531 UTC
by Fisherman
0 Replies
486 Views
Last post June 19, 2018, 1848 UTC
by Ray Lalleu
0 Replies
345 Views
Last post March 24, 2021, 1820 UTC
by Ray Lalleu
1 Replies
158 Views
Last post July 20, 2025, 2043 UTC
by Alex BLR
0 Replies
370 Views
Last post December 19, 2020, 1617 UTC
by kris
1 Replies
388 Views
Last post October 23, 2024, 0436 UTC
by nektaman
0 Replies
390 Views
Last post February 19, 2021, 1410 UTC
by Ray Lalleu
0 Replies
282 Views
Last post November 23, 2020, 1057 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