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
341 Views
Last post February 10, 2024, 1603 UTC
by Ray Lalleu
0 Replies
245 Views
Last post January 22, 2023, 1505 UTC
by Ray Lalleu
2 Replies
535 Views
Last post January 29, 2023, 1538 UTC
by Ray Lalleu
0 Replies
213 Views
Last post February 12, 2023, 1040 UTC
by Ray Lalleu
2 Replies
376 Views
Last post January 01, 2023, 1111 UTC
by europirate
2 Replies
536 Views
Last post June 28, 2024, 2114 UTC
by dxace1
1 Replies
760 Views
Last post June 14, 2025, 2022 UTC
by Princo
0 Replies
283 Views
Last post March 22, 2025, 2316 UTC
by Ray Lalleu
1 Replies
414 Views
Last post September 29, 2023, 2153 UTC
by kris
1 Replies
396 Views
Last post June 09, 2024, 2236 UTC
by kris
0 Replies
221 Views
Last post November 07, 2024, 1822 UTC
by Ray Lalleu
0 Replies
310 Views
Last post October 06, 2020, 2009 UTC
by Ray Lalleu
4 Replies
710 Views
Last post February 23, 2024, 1830 UTC
by DonMooreDXer
2 Replies
593 Views
Last post March 07, 2024, 1834 UTC
by kris
3 Replies
473 Views
Last post October 14, 2023, 2057 UTC
by N2MLP
8 Replies
923 Views
Last post August 02, 2024, 1149 UTC
by easy listener
3 Replies
408 Views
Last post August 16, 2024, 1940 UTC
by europirate
0 Replies
406 Views
Last post December 30, 2023, 1651 UTC
by Ray Lalleu
2 Replies
626 Views
Last post January 06, 2024, 1708 UTC
by Fisherman
0 Replies
192 Views
Last post May 17, 2025, 1947 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