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
97 Views
Last post August 29, 2025, 1627 UTC
by Ray Lalleu
2 Replies
349 Views
Last post May 07, 2025, 1347 UTC
by Benoit LEVEQUE
3 Replies
216 Views
Last post August 26, 2025, 1925 UTC
by europirate
4 Replies
235 Views
Last post August 11, 2025, 1849 UTC
by Stu Forsyth
0 Replies
265 Views
Last post May 27, 2025, 1552 UTC
by Alex BLR
2 Replies
394 Views
Last post February 26, 2025, 1928 UTC
by Princo
0 Replies
149 Views
Last post June 21, 2025, 1543 UTC
by Alex BLR
1 Replies
386 Views
Last post March 11, 2025, 1909 UTC
by Ray Lalleu
3 Replies
273 Views
Last post May 25, 2025, 1727 UTC
by Ray Lalleu
1 Replies
278 Views
Last post February 24, 2025, 1734 UTC
by Ray Lalleu
2 Replies
305 Views
Last post May 10, 2025, 0820 UTC
by europirate
2 Replies
198 Views
Last post July 18, 2025, 2019 UTC
by Panda_NL
3 Replies
442 Views
Last post April 18, 2025, 0713 UTC
by Benoit LEVEQUE
3 Replies
393 Views
Last post March 04, 2025, 1513 UTC
by Benoit LEVEQUE
0 Replies
210 Views
Last post May 19, 2025, 1725 UTC
by Alex BLR
3 Replies
409 Views
Last post March 02, 2025, 1659 UTC
by kris
0 Replies
280 Views
Last post March 01, 2025, 1427 UTC
by Alex BLR
1 Replies
221 Views
Last post May 04, 2025, 1600 UTC
by Ray Lalleu
1 Replies
289 Views
Last post March 14, 2025, 1859 UTC
by Ray Lalleu
2 Replies
209 Views
Last post July 27, 2025, 1940 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