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
441 Views
Last post July 14, 2019, 1911 UTC
by kris
1 Replies
337 Views
Last post May 12, 2025, 2255 UTC
by Ray Lalleu
0 Replies
422 Views
Last post March 12, 2021, 1905 UTC
by kris
1 Replies
473 Views
Last post June 06, 2022, 2134 UTC
by Ray Lalleu
1 Replies
1254 Views
Last post September 02, 2017, 2154 UTC
by Ray Lalleu
1 Replies
439 Views
Last post May 12, 2022, 2202 UTC
by Ray Lalleu
2 Replies
401 Views
Last post September 02, 2022, 1623 UTC
by dxace1
0 Replies
351 Views
Last post April 04, 2022, 1152 UTC
by kris
4 Replies
855 Views
Last post February 27, 2022, 0857 UTC
by Ray Lalleu
2 Replies
682 Views
Last post June 16, 2018, 2037 UTC
by ralf_bender
2 Replies
580 Views
Last post June 23, 2021, 1852 UTC
by dxace1
2 Replies
393 Views
Last post February 25, 2023, 1802 UTC
by kobalts
2 Replies
550 Views
Last post August 12, 2022, 2116 UTC
by kobalts
1 Replies
408 Views
Last post July 04, 2020, 2134 UTC
by Ray Lalleu
1 Replies
279 Views
Last post October 29, 2023, 1528 UTC
by dxace1
1 Replies
678 Views
Last post December 18, 2018, 1943 UTC
by Ray Lalleu
1 Replies
314 Views
Last post September 11, 2024, 1935 UTC
by Ray Lalleu
2 Replies
545 Views
Last post February 27, 2022, 2026 UTC
by KaySeeks
1 Replies
467 Views
Last post September 17, 2020, 2138 UTC
by Ray Lalleu
1 Replies
261 Views
Last post April 12, 2023, 1724 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