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
3 Replies
405 Views
Last post September 07, 2025, 1847 UTC
by Ray Lalleu
5 Replies
478 Views
Last post September 07, 2025, 1753 UTC
by RadioLongWire
1 Replies
310 Views
Last post September 07, 2025, 1722 UTC
by kris
2 Replies
299 Views
Last post September 07, 2025, 1716 UTC
by kris
0 Replies
207 Views
Last post September 07, 2025, 1633 UTC
by Ray Lalleu
1 Replies
235 Views
Last post September 07, 2025, 1626 UTC
by Ray Lalleu
0 Replies
209 Views
Last post September 07, 2025, 1624 UTC
by Ray Lalleu
0 Replies
222 Views
Last post September 07, 2025, 1617 UTC
by europirate
1 Replies
242 Views
Last post September 07, 2025, 1612 UTC
by Ray Lalleu
0 Replies
229 Views
Last post September 07, 2025, 1602 UTC
by Ray Lalleu
0 Replies
215 Views
Last post September 07, 2025, 1555 UTC
by Ray Lalleu
2 Replies
301 Views
Last post September 07, 2025, 1533 UTC
by Ray Lalleu
0 Replies
216 Views
Last post September 07, 2025, 1134 UTC
by Alex BLR
2 Replies
342 Views
Last post September 07, 2025, 1120 UTC
by Aran
0 Replies
228 Views
Last post September 07, 2025, 1103 UTC
by Alex BLR
2 Replies
304 Views
Last post September 07, 2025, 1058 UTC
by Ray Lalleu
0 Replies
234 Views
Last post September 07, 2025, 1043 UTC
by Ray Lalleu
0 Replies
226 Views
Last post September 07, 2025, 1031 UTC
by Ray Lalleu
0 Replies
266 Views
Last post September 07, 2025, 0925 UTC
by Alex BLR
1 Replies
282 Views
Last post September 07, 2025, 0906 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