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
342 Views
Last post April 18, 2023, 0536 UTC
by Skipmuck
4 Replies
453 Views
Last post April 18, 2023, 0317 UTC
by Markokpik
9 Replies
956 Views
Last post April 18, 2023, 0130 UTC
by shadypyro
6 Replies
610 Views
Last post April 17, 2023, 2034 UTC
by TRI International
0 Replies
325 Views
Last post April 17, 2023, 1201 UTC
by ChrisSmolinski
2 Replies
451 Views
Last post April 17, 2023, 0715 UTC
by Route66Fan
43 Replies
3877 Views
Last post April 17, 2023, 0628 UTC
by Pigmeat
0 Replies
399 Views
Last post April 17, 2023, 0405 UTC
by Shortwave_Listener
37 Replies
3302 Views
Last post April 17, 2023, 0311 UTC
by Teotwaki
7 Replies
791 Views
Last post April 17, 2023, 0227 UTC
by Bali_Frank
5 Replies
805 Views
Last post April 17, 2023, 0157 UTC
by N2MLP
12 Replies
1385 Views
Last post April 17, 2023, 0101 UTC
by Ct Yankee
8 Replies
890 Views
Last post April 16, 2023, 2217 UTC
by Pigmeat
15 Replies
1487 Views
Last post April 16, 2023, 2027 UTC
by Ron Hunsicker
3 Replies
418 Views
Last post April 16, 2023, 2024 UTC
by Andrew Yoder
4 Replies
522 Views
Last post April 16, 2023, 1715 UTC
by Traveling Wave
1 Replies
335 Views
Last post April 16, 2023, 1418 UTC
by K1MLP
3 Replies
646 Views
Last post April 16, 2023, 1342 UTC
by dxace1
0 Replies
307 Views
Last post April 16, 2023, 1340 UTC
by ChrisSmolinski
4 Replies
581 Views
Last post April 16, 2023, 0509 UTC
by Shortwave_Listener

 

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