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
0 Replies
2710 Views
Last post December 04, 2015, 2316 UTC
by K5KNT
0 Replies
2779 Views
Last post February 27, 2019, 2015 UTC
by ChrisSmolinski
0 Replies
2782 Views
Last post August 04, 2014, 1529 UTC
by IQ_imbalance
1 Replies
2793 Views
Last post January 22, 2017, 1458 UTC
by ChrisSmolinski
0 Replies
2807 Views
Last post March 22, 2019, 1718 UTC
by Josh
5 Replies
2840 Views
Last post August 12, 2022, 0037 UTC
by JustGreg
1 Replies
2855 Views
Last post August 19, 2014, 0851 UTC
by hfflunki
2 Replies
2858 Views
Last post February 08, 2017, 1808 UTC
by GuidoS
1 Replies
2893 Views
Last post June 27, 2017, 2132 UTC
by Cornel
SSTV software (Chrome)

Started by Matt285

7 Replies
3039 Views
Last post July 12, 2021, 0338 UTC
by Ray Lalleu
0 Replies
3050 Views
Last post January 12, 2016, 2004 UTC
by hogendaz
1 Replies
3057 Views
Last post April 06, 2019, 2044 UTC
by Strange Beacons
8 Replies
3065 Views
Last post March 04, 2021, 1931 UTC
by redhat
0 Replies
3132 Views
Last post February 25, 2015, 1707 UTC
by ChrisSmolinski
1 Replies
3156 Views
Last post July 14, 2016, 0106 UTC
by Terry
2 Replies
3159 Views
Last post June 23, 2017, 0102 UTC
by JCMaxwell
0 Replies
3196 Views
Last post May 07, 2019, 0851 UTC
by CoolAM Radio
4 Replies
3199 Views
Last post August 24, 2016, 1810 UTC
by ChrisSmolinski
2 Replies
3207 Views
Last post July 12, 2019, 2000 UTC
by Josh
2 Replies
3242 Views
Last post March 09, 2014, 1535 UTC
by thechoat

 

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