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
436 Views
Last post April 08, 2019, 1841 UTC
by Ray Lalleu
2 Replies
378 Views
Last post April 10, 2025, 0731 UTC
by Benoit LEVEQUE
3 Replies
601 Views
Last post April 01, 2024, 1849 UTC
by Ray Lalleu
0 Replies
226 Views
Last post May 31, 2023, 1620 UTC
by Ray Lalleu
1 Replies
563 Views
Last post June 23, 2021, 2254 UTC
by kris
1 Replies
487 Views
Last post August 02, 2020, 2123 UTC
by kris
2 Replies
555 Views
Last post October 03, 2019, 1437 UTC
by Ray Lalleu
0 Replies
733 Views
Last post June 17, 2018, 1947 UTC
by Ray Lalleu
0 Replies
228 Views
Last post July 10, 2025, 1849 UTC
by Ray Lalleu
1 Replies
285 Views
Last post September 28, 2024, 1829 UTC
by eric pyw
1 Replies
328 Views
Last post October 02, 2023, 1838 UTC
by Ray Lalleu
2 Replies
587 Views
Last post October 09, 2021, 1617 UTC
by dxace1
1 Replies
480 Views
Last post February 01, 2020, 2018 UTC
by kris
0 Replies
231 Views
Last post December 28, 2024, 1037 UTC
by Ray Lalleu
0 Replies
248 Views
Last post February 07, 2023, 1604 UTC
by Ray Lalleu
0 Replies
360 Views
Last post March 14, 2021, 0911 UTC
by Ray Lalleu
1 Replies
602 Views
Last post May 23, 2019, 2146 UTC
by ukdxer
3 Replies
663 Views
Last post May 27, 2022, 2021 UTC
by raadio_kuulaja
0 Replies
375 Views
Last post September 16, 2020, 1957 UTC
by Ray Lalleu
0 Replies
581 Views
Last post August 24, 2018, 1727 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