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
230 Views
Last post December 04, 2023, 1643 UTC
by Ray Lalleu
0 Replies
389 Views
Last post August 11, 2021, 1641 UTC
by Ray Lalleu
2 Replies
384 Views
Last post March 02, 2023, 1947 UTC
by Ray Lalleu
5 Replies
852 Views
Last post February 13, 2023, 1928 UTC
by Ray Lalleu
1 Replies
343 Views
Last post April 22, 2024, 1717 UTC
by kris
1 Replies
361 Views
Last post November 10, 2023, 1737 UTC
by europirate
0 Replies
246 Views
Last post May 11, 2023, 1705 UTC
by Ray Lalleu
0 Replies
210 Views
Last post September 17, 2024, 1705 UTC
by Ray Lalleu
0 Replies
234 Views
Last post May 15, 2023, 1704 UTC
by Ray Lalleu
1 Replies
478 Views
Last post August 13, 2021, 1719 UTC
by ukdxer
0 Replies
233 Views
Last post September 14, 2023, 1712 UTC
by Ray Lalleu
2 Replies
225 Views
Last post November 09, 2023, 1728 UTC
by europirate
1 Replies
290 Views
Last post March 22, 2023, 1745 UTC
by kris
0 Replies
225 Views
Last post February 16, 2023, 1716 UTC
by Ray Lalleu
0 Replies
378 Views
Last post September 22, 2023, 1718 UTC
by Ray Lalleu
0 Replies
244 Views
Last post March 06, 2023, 1720 UTC
by Ray Lalleu
1 Replies
223 Views
Last post March 22, 2025, 1737 UTC
by kris
0 Replies
207 Views
Last post March 04, 2024, 1732 UTC
by Ray Lalleu
0 Replies
277 Views
Last post April 10, 2024, 1831 UTC
by Benoit LEVEQUE
0 Replies
208 Views
Last post April 02, 2025, 0706 UTC
by Benoit LEVEQUE

 

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