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
2 Replies
962 Views
Last post January 05, 2022, 0039 UTC
by kris
2 Replies
620 Views
Last post November 06, 2021, 1443 UTC
by The Vault Keeper
2 Replies
532 Views
Last post October 24, 2020, 1458 UTC
by dxace1
1 Replies
109 Views
Last post September 06, 2025, 1855 UTC
by Ray Lalleu
2 Replies
273 Views
Last post June 16, 2024, 1924 UTC
by Ray Lalleu
2 Replies
538 Views
Last post August 06, 2022, 1943 UTC
by Shortwave_Listener
11 Replies
919 Views
Last post July 02, 2023, 0909 UTC
by greekdx
3 Replies
1089 Views
Last post April 24, 2025, 0709 UTC
by Benoit LEVEQUE
3 Replies
528 Views
Last post August 26, 2024, 1644 UTC
by Ray Lalleu
3 Replies
583 Views
Last post September 09, 2022, 1918 UTC
by kris
0 Replies
610 Views
Last post October 17, 2021, 1401 UTC
by ukdxer
4 Replies
642 Views
Last post May 27, 2022, 1831 UTC
by Bali_Frank
3 Replies
376 Views
Last post September 29, 2024, 0959 UTC
by europirate
2 Replies
496 Views
Last post August 18, 2023, 1717 UTC
by RainBrandy
3 Replies
666 Views
Last post December 25, 2021, 1530 UTC
by Grey Fox
0 Replies
446 Views
Last post September 13, 2020, 1636 UTC
by ukdxer
2 Replies
547 Views
Last post December 28, 2021, 2326 UTC
by kris
1 Replies
563 Views
Last post January 25, 2022, 1650 UTC
by Ray Lalleu
1 Replies
647 Views
Last post March 13, 2022, 1456 UTC
by Ray Lalleu
1 Replies
482 Views
Last post September 20, 2020, 1008 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