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
418 Views
Last post October 24, 2023, 1959 UTC
by Ray Lalleu
1 Replies
148 Views
Last post August 06, 2025, 2002 UTC
by Lana
2 Replies
822 Views
Last post July 21, 2018, 2243 UTC
by JoeFLIPS
1 Replies
481 Views
Last post May 08, 2022, 1004 UTC
by The Ether Hacker
1 Replies
322 Views
Last post April 30, 2025, 1054 UTC
by Benoit LEVEQUE
1 Replies
551 Views
Last post April 30, 2019, 1922 UTC
by Brian
0 Replies
428 Views
Last post May 18, 2020, 1950 UTC
by Ray Lalleu
0 Replies
441 Views
Last post February 21, 2021, 1515 UTC
by Ray Lalleu
2 Replies
504 Views
Last post February 05, 2022, 1344 UTC
by Ray Lalleu
0 Replies
231 Views
Last post January 13, 2023, 1311 UTC
by Ray Lalleu
0 Replies
184 Views
Last post January 28, 2024, 0725 UTC
by Ray Lalleu
0 Replies
176 Views
Last post December 08, 2024, 1329 UTC
by Ray Lalleu
0 Replies
470 Views
Last post December 08, 2018, 1307 UTC
by Ray Lalleu
1 Replies
375 Views
Last post May 31, 2021, 2028 UTC
by kris
0 Replies
215 Views
Last post May 07, 2023, 1048 UTC
by Ray Lalleu
0 Replies
222 Views
Last post March 21, 2025, 2155 UTC
by Ray Lalleu
0 Replies
470 Views
Last post October 14, 2018, 0857 UTC
by Ray Lalleu
0 Replies
403 Views
Last post October 20, 2020, 1857 UTC
by Ray Lalleu
0 Replies
208 Views
Last post September 09, 2023, 2220 UTC
by Ray Lalleu
0 Replies
598 Views
Last post May 13, 2018, 2100 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 T-Shirt
by MitchellTimeDesigns