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
16 Replies
34587 Views
Last post December 31, 2019, 1409 UTC
by R4002
0 Replies
14396 Views
Last post April 15, 2017, 0413 UTC
by R4002
1 Replies
24169 Views
Last post August 23, 2019, 1825 UTC
by R4002
3 Replies
23500 Views
Last post July 25, 2019, 1839 UTC
by R4002
10 Replies
14891 Views
Last post August 13, 2019, 0609 UTC
by BoomboxDX
5 Replies
14529 Views
Last post August 07, 2019, 1758 UTC
by R4002
4 Replies
12863 Views
Last post August 08, 2019, 2221 UTC
by ulx2
25 Replies
11546 Views
Last post March 09, 2020, 1757 UTC
by R4002
16 Replies
10131 Views
Last post April 30, 2017, 1548 UTC
by R4002
7 Replies
8239 Views
Last post July 23, 2017, 0045 UTC
by skeezix
4 Replies
8041 Views
Last post July 11, 2025, 2050 UTC
by NQC
18 Replies
7502 Views
Last post January 08, 2019, 1843 UTC
by ka1iic
13 Replies
7269 Views
Last post April 17, 2017, 1047 UTC
by Looking-Glass
3 Replies
6266 Views
Last post January 02, 2014, 2147 UTC
by jFarley
3 Replies
5762 Views
Last post February 22, 2017, 2329 UTC
by PirateSWL
3 Replies
5749 Views
Last post January 18, 2017, 0450 UTC
by R4002
7 Replies
5656 Views
Last post July 14, 2017, 1848 UTC
by R4002
1 Replies
5556 Views
Last post February 21, 2025, 2235 UTC
by Shortwave_Listener
5 Replies
5448 Views
Last post July 30, 2019, 1823 UTC
by R4002
2 Replies
5084 Views
Last post September 10, 2019, 2206 UTC
by KaySeeks

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground Mug
HFUnderground Mug
by MitchellTimeDesigns