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
New solar cycles prediction

Started by Fansome

1 Replies
2303 Views
Last post May 31, 2009, 0226 UTC
by cmradio
0 Replies
1024 Views
Last post April 26, 2013, 1351 UTC
by CoolAM Radio
0 Replies
1031 Views
Last post October 28, 2016, 1841 UTC
by CoolAM Radio
0 Replies
864 Views
Last post December 20, 2022, 2358 UTC
by Skipmuck
0 Replies
936 Views
Last post March 14, 2015, 1628 UTC
by skeezix
9 Replies
2750 Views
Last post March 10, 2020, 1529 UTC
by chanito
6 Replies
2537 Views
Last post April 21, 2017, 1338 UTC
by Pigmeat
7 Replies
3400 Views
Last post January 24, 2019, 2308 UTC
by R4002
3 Replies
1790 Views
Last post September 01, 2014, 0543 UTC
by Fansome
4 Replies
2656 Views
Last post January 07, 2016, 0923 UTC
by redhat
0 Replies
2117 Views
Last post May 25, 2011, 1703 UTC
by paranoid dxer
5 Replies
2540 Views
Last post May 04, 2017, 2351 UTC
by skeezix
0 Replies
1169 Views
Last post October 22, 2013, 1702 UTC
by CoolAM Radio
0 Replies
2921 Views
Last post March 29, 2012, 2338 UTC
by Shawndx
3 Replies
1502 Views
Last post January 01, 2018, 1447 UTC
by digitalmod
2 Replies
1268 Views
Last post December 31, 2016, 1844 UTC
by Swede P
4 Replies
4545 Views
Last post January 30, 2025, 1952 UTC
by Charlie_Dont_Surf
5 Replies
3039 Views
Last post July 15, 2011, 1051 UTC
by lovemyradios
4 Replies
1965 Views
Last post October 12, 2014, 1412 UTC
by Pigmeat
0 Replies
2653 Views
Last post January 16, 2009, 1228 UTC
by ChrisSmolinski

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground T-Shirt
by MitchellTimeDesigns