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
566 Views
Last post May 11, 2022, 2334 UTC
by ChrisLobdell
1 Replies
566 Views
Last post July 17, 2021, 0242 UTC
by Molvania Poacher
2 Replies
566 Views
Last post November 16, 2024, 0119 UTC
by Radiouser
0 Replies
566 Views
Last post October 22, 2023, 0758 UTC
by RainBrandy
0 Replies
565 Views
Last post September 03, 2025, 0107 UTC
by Radiouser
0 Replies
565 Views
Last post May 17, 2024, 2132 UTC
by Skipmuck
7 Replies
565 Views
Last post October 22, 2025, 1342 UTC
by ChrisSmolinski
0 Replies
565 Views
Last post July 15, 2023, 0150 UTC
by Molvania Poacher
0 Replies
564 Views
Last post April 14, 2025, 1813 UTC
by Radiouser
1 Replies
564 Views
Last post April 13, 2024, 0022 UTC
by shadypyro
0 Replies
564 Views
Last post May 17, 2024, 1418 UTC
by Benoit LEVEQUE
0 Replies
564 Views
Last post April 25, 2024, 0555 UTC
by Gino Italy
0 Replies
564 Views
Last post January 08, 2021, 1656 UTC
by Bali_Frank
0 Replies
564 Views
Last post February 27, 2021, 1344 UTC
by Chuck54
0 Replies
564 Views
Last post July 27, 2021, 1916 UTC
by raypfaff
0 Replies
564 Views
Last post May 28, 2022, 1222 UTC
by Skipmuck
1 Replies
564 Views
Last post October 25, 2022, 2034 UTC
by Radio Star
0 Replies
564 Views
Last post February 24, 2019, 2107 UTC
by Gino Italy
0 Replies
563 Views
Last post May 07, 2024, 0023 UTC
by Molvania Poacher
0 Replies
563 Views
Last post May 29, 2021, 1720 UTC
by Bali_Frank

 

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