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
3 Replies
898 Views
Last post June 23, 2018, 0133 UTC
by Helicaster
1 Replies
1244 Views
Last post June 17, 2017, 2221 UTC
by Jari Finland
1 Replies
759 Views
Last post November 23, 2019, 1651 UTC
by Ray Lalleu
3 Replies
618 Views
Last post April 08, 2022, 1823 UTC
by Ray Lalleu
1 Replies
390 Views
Last post January 25, 2023, 1821 UTC
by Ray Lalleu
1 Replies
349 Views
Last post December 27, 2023, 1456 UTC
by Ray Lalleu
0 Replies
224 Views
Last post May 18, 2023, 2038 UTC
by kris
2 Replies
407 Views
Last post February 26, 2023, 1816 UTC
by Mad Radio DXer UK
2 Replies
405 Views
Last post November 17, 2024, 0137 UTC
by N2MLP
0 Replies
672 Views
Last post November 28, 2023, 1610 UTC
by kris
2 Replies
480 Views
Last post March 01, 2025, 1715 UTC
by Alex BLR
2 Replies
490 Views
Last post June 07, 2020, 0850 UTC
by kris
2 Replies
366 Views
Last post September 12, 2024, 1925 UTC
by James_Calais
0 Replies
461 Views
Last post February 02, 2024, 0811 UTC
by kris
1 Replies
238 Views
Last post July 11, 2023, 1842 UTC
by Ray Lalleu
2 Replies
454 Views
Last post January 06, 2021, 1645 UTC
by Ray Lalleu
1 Replies
447 Views
Last post December 10, 2023, 2016 UTC
by Ray Lalleu
0 Replies
206 Views
Last post March 08, 2024, 0811 UTC
by kris
1 Replies
537 Views
Last post October 24, 2021, 2306 UTC
by Bali_Frank
1 Replies
298 Views
Last post February 25, 2023, 1954 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 Garden Flag
by MitchellTimeDesigns