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
1 Replies
106 Views
Last post May 18, 2025, 1747 UTC
by Alex BLR
0 Replies
299 Views
Last post May 12, 2025, 2211 UTC
by dave1965
1 Replies
425 Views
Last post July 11, 2021, 1015 UTC
by Bali_Frank
1 Replies
495 Views
Last post July 09, 2021, 1247 UTC
by Bali_Frank
1 Replies
400 Views
Last post January 16, 2022, 1032 UTC
by kris
0 Replies
179 Views
Last post April 14, 2023, 1916 UTC
by Ray Lalleu
1 Replies
213 Views
Last post July 01, 2023, 2122 UTC
by FOX
1 Replies
502 Views
Last post June 09, 2024, 0913 UTC
by Ray Lalleu
0 Replies
203 Views
Last post June 07, 2024, 1925 UTC
by Ray Lalleu
0 Replies
184 Views
Last post May 14, 2023, 1015 UTC
by Ray Lalleu
1 Replies
381 Views
Last post December 24, 2022, 1621 UTC
by Ray Lalleu
0 Replies
160 Views
Last post July 20, 2023, 1942 UTC
by Ray Lalleu
0 Replies
263 Views
Last post May 05, 2023, 2038 UTC
by Ray Lalleu
0 Replies
245 Views
Last post June 05, 2023, 2242 UTC
by Ray Lalleu
0 Replies
216 Views
Last post June 10, 2023, 2340 UTC
by Ray Lalleu
1 Replies
249 Views
Last post October 08, 2023, 1155 UTC
by Ethernut
0 Replies
214 Views
Last post April 23, 2023, 1458 UTC
by Ray Lalleu
1 Replies
291 Views
Last post March 26, 2023, 1025 UTC
by Ray Lalleu
2 Replies
330 Views
Last post January 15, 2023, 1042 UTC
by Bali_Frank
0 Replies
203 Views
Last post March 12, 2023, 1032 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