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
11 Replies
524 Views
Last post August 25, 2024, 0130 UTC
by MDK2
14 Replies
681 Views
Last post August 25, 2024, 0059 UTC
by osiris
5 Replies
579 Views
Last post August 24, 2024, 2059 UTC
by MajikCrow
4 Replies
577 Views
Last post August 24, 2024, 1358 UTC
by Sealord
0 Replies
216 Views
Last post August 24, 2024, 1243 UTC
by ChrisSmolinski
4 Replies
513 Views
Last post August 24, 2024, 1109 UTC
by AlexRadioDX
7 Replies
738 Views
Last post August 24, 2024, 0352 UTC
by N2MLP
13 Replies
1106 Views
Last post August 24, 2024, 0238 UTC
by VE3VCF
8 Replies
774 Views
Last post August 24, 2024, 0057 UTC
by Chuck54
3 Replies
535 Views
Last post August 23, 2024, 2312 UTC
by N2MLP
8 Replies
715 Views
Last post August 23, 2024, 2310 UTC
by N2MLP
13 Replies
1092 Views
Last post August 23, 2024, 2305 UTC
by N2MLP
8 Replies
755 Views
Last post August 23, 2024, 2304 UTC
by N2MLP
2 Replies
451 Views
Last post August 23, 2024, 2302 UTC
by N2MLP
2 Replies
407 Views
Last post August 23, 2024, 2233 UTC
by N2MLP
0 Replies
259 Views
Last post August 23, 2024, 1204 UTC
by TRI International
2 Replies
310 Views
Last post August 22, 2024, 2012 UTC
by Andrew Yoder
14 Replies
952 Views
Last post August 21, 2024, 0126 UTC
by intellman
1 Replies
357 Views
Last post August 20, 2024, 2118 UTC
by ChrisSmolinski
3 Replies
442 Views
Last post August 19, 2024, 1833 UTC
by myteaquinn

 

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