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
249 Views
Last post September 06, 2023, 1831 UTC
by Ray Lalleu
1 Replies
507 Views
Last post August 22, 2022, 2017 UTC
by Ray Lalleu
1 Replies
615 Views
Last post September 19, 2021, 0754 UTC
by Bali_Frank
0 Replies
364 Views
Last post November 22, 2020, 0918 UTC
by Ray Lalleu
1 Replies
2728 Views
Last post December 02, 2018, 1759 UTC
by kris
1 Replies
228 Views
Last post October 25, 2025, 0810 UTC
by Alex BLR
0 Replies
338 Views
Last post January 26, 2024, 2103 UTC
by Ray Lalleu
0 Replies
418 Views
Last post February 02, 2022, 0754 UTC
by Ray Lalleu
0 Replies
468 Views
Last post February 19, 2021, 2121 UTC
by Ray Lalleu
0 Replies
433 Views
Last post May 16, 2020, 1441 UTC
by Ray Lalleu
2 Replies
723 Views
Last post April 29, 2019, 1701 UTC
by ChrisSmolinski
0 Replies
279 Views
Last post April 26, 2024, 2101 UTC
by Ray Lalleu
1 Replies
518 Views
Last post May 07, 2022, 0923 UTC
by Ethernut
0 Replies
390 Views
Last post August 27, 2020, 1415 UTC
by Ray Lalleu
0 Replies
549 Views
Last post July 18, 2018, 2016 UTC
by Ray Lalleu
0 Replies
190 Views
Last post August 03, 2025, 1716 UTC
by Ray Lalleu
0 Replies
240 Views
Last post October 22, 2023, 1716 UTC
by Ray Lalleu
1 Replies
526 Views
Last post October 30, 2021, 2020 UTC
by dxace1
0 Replies
368 Views
Last post February 28, 2020, 1916 UTC
by Ray Lalleu
0 Replies
270 Views
Last post January 19, 2025, 1310 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