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
1 Replies
317 Views
Last post August 02, 2024, 1906 UTC
by Fisherman
3 Replies
317 Views
Last post July 21, 2024, 0942 UTC
by europirate
2 Replies
317 Views
Last post July 13, 2024, 1723 UTC
by Ray Lalleu
1 Replies
317 Views
Last post May 03, 2024, 1956 UTC
by Fisherman
1 Replies
317 Views
Last post March 08, 2024, 1822 UTC
by kris
1 Replies
317 Views
Last post January 28, 2024, 0942 UTC
by Fisherman
0 Replies
317 Views
Last post January 27, 2024, 0721 UTC
by Fisherman
0 Replies
317 Views
Last post January 23, 2024, 1630 UTC
by Ray Lalleu
1 Replies
317 Views
Last post January 19, 2024, 1412 UTC
by Ray Lalleu
1 Replies
317 Views
Last post December 31, 2023, 1813 UTC
by kris
2 Replies
316 Views
Last post July 20, 2025, 2039 UTC
by Alex BLR
2 Replies
316 Views
Last post July 08, 2025, 1941 UTC
by RadioLongWire
0 Replies
316 Views
Last post June 06, 2025, 1851 UTC
by Ray Lalleu
1 Replies
316 Views
Last post May 17, 2025, 0951 UTC
by TRI International
1 Replies
316 Views
Last post March 29, 2025, 1102 UTC
by Benoit LEVEQUE
3 Replies
316 Views
Last post March 16, 2025, 1453 UTC
by Benoit LEVEQUE
2 Replies
316 Views
Last post February 21, 2025, 1730 UTC
by Oliver
0 Replies
316 Views
Last post February 19, 2025, 0457 UTC
by Alex BLR
2 Replies
316 Views
Last post January 12, 2025, 1751 UTC
by Ray Lalleu
0 Replies
316 Views
Last post November 29, 2024, 2119 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