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
2 Replies
425 Views
Last post August 18, 2020, 1840 UTC
by kris
3 Replies
593 Views
Last post May 09, 2020, 2144 UTC
by Ray Lalleu
1 Replies
295 Views
Last post December 24, 2020, 1521 UTC
by Ray Lalleu
1 Replies
308 Views
Last post September 25, 2020, 2127 UTC
by Ray Lalleu
0 Replies
274 Views
Last post July 17, 2020, 1119 UTC
by FOX
0 Replies
138 Views
Last post January 15, 2023, 1532 UTC
by FOX
2 Replies
361 Views
Last post August 31, 2020, 2123 UTC
by kris
0 Replies
297 Views
Last post March 21, 2022, 1035 UTC
by FOX
4 Replies
575 Views
Last post May 08, 2020, 2029 UTC
by Ray Lalleu
1 Replies
285 Views
Last post May 31, 2020, 1804 UTC
by Ray Lalleu
0 Replies
270 Views
Last post September 11, 2020, 2017 UTC
by FOX
1 Replies
327 Views
Last post December 06, 2020, 1725 UTC
by Ray Lalleu
1 Replies
203 Views
Last post January 08, 2023, 1540 UTC
by dxace1
1 Replies
84 Views
Last post August 19, 2023, 1831 UTC
by Ray Lalleu
0 Replies
313 Views
Last post April 04, 2020, 1947 UTC
by FOX
0 Replies
283 Views
Last post January 02, 2022, 1103 UTC
by FOX
2 Replies
372 Views
Last post July 26, 2020, 1100 UTC
by Ray Lalleu
0 Replies
281 Views
Last post July 10, 2020, 2021 UTC
by FOX
1 Replies
330 Views
Last post April 03, 2020, 1924 UTC
by Ray Lalleu
0 Replies
80 Views
Last post July 16, 2023, 0823 UTC
by FOX

 

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