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
191 Views
Last post November 20, 2024, 1622 UTC
by Ray Lalleu
2 Replies
846 Views
Last post May 31, 2025, 2008 UTC
by ukdxer
2 Replies
424 Views
Last post June 25, 2020, 2229 UTC
by kris
2 Replies
367 Views
Last post February 29, 2024, 2024 UTC
by kris
0 Replies
493 Views
Last post February 14, 2019, 1717 UTC
by Ray Lalleu
0 Replies
374 Views
Last post December 30, 2020, 0840 UTC
by Ray Lalleu
0 Replies
251 Views
Last post October 22, 2022, 0747 UTC
by Ray Lalleu
0 Replies
244 Views
Last post October 16, 2024, 1545 UTC
by Ray Lalleu
2 Replies
601 Views
Last post September 22, 2018, 2118 UTC
by KaySeeks
1 Replies
466 Views
Last post October 25, 2019, 1734 UTC
by ChrisSmolinski
0 Replies
342 Views
Last post October 02, 2020, 2108 UTC
by Ray Lalleu
0 Replies
397 Views
Last post July 16, 2021, 1702 UTC
by Ray Lalleu
1 Replies
402 Views
Last post June 14, 2022, 2232 UTC
by kris
2 Replies
318 Views
Last post June 30, 2023, 0031 UTC
by N2MLP
0 Replies
200 Views
Last post June 23, 2024, 0924 UTC
by Ray Lalleu
2 Replies
242 Views
Last post April 27, 2025, 1822 UTC
by DBullock
0 Replies
512 Views
Last post June 19, 2019, 1655 UTC
by Ray Lalleu
0 Replies
225 Views
Last post March 04, 2023, 1404 UTC
by Ray Lalleu
3 Replies
485 Views
Last post January 19, 2025, 1153 UTC
by Ray Lalleu
1 Replies
534 Views
Last post October 30, 2021, 1851 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