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
911 Views
Last post October 05, 2020, 2342 UTC
by Andrew Yoder
0 Replies
911 Views
Last post December 09, 2019, 2036 UTC
by ChrisSmolinski
0 Replies
912 Views
Last post January 22, 2020, 1258 UTC
by ChrisSmolinski
0 Replies
912 Views
Last post November 22, 2019, 0014 UTC
by Daniel Wyllyans
0 Replies
913 Views
Last post February 15, 2019, 2223 UTC
by Daniel Wyllyans
1 Replies
913 Views
Last post April 28, 2023, 0851 UTC
by Mathew
1 Replies
913 Views
Last post October 23, 2018, 1226 UTC
by ChrisSmolinski
0 Replies
915 Views
Last post June 29, 2018, 1422 UTC
by Daniel Wyllyans
0 Replies
915 Views
Last post November 19, 2018, 2315 UTC
by ChrisSmolinski
0 Replies
918 Views
Last post February 08, 2019, 1720 UTC
by Daniel Wyllyans
0 Replies
918 Views
Last post May 12, 2018, 2221 UTC
by Daniel Wyllyans
1 Replies
918 Views
Last post August 22, 2018, 2330 UTC
by Ray Lalleu
0 Replies
919 Views
Last post October 17, 2023, 1155 UTC
by ChrisSmolinski
1 Replies
920 Views
Last post April 30, 2024, 2257 UTC
by n2avh
1 Replies
922 Views
Last post October 27, 2020, 2009 UTC
by caylorman
0 Replies
922 Views
Last post June 25, 2023, 0152 UTC
by DXrafaelcolDX
0 Replies
923 Views
Last post August 27, 2018, 2325 UTC
by ChrisSmolinski
1 Replies
923 Views
Last post January 21, 2019, 2350 UTC
by Ray Lalleu
2 Replies
924 Views
Last post February 16, 2023, 0534 UTC
by Shortwave_Listener
0 Replies
924 Views
Last post October 14, 2019, 1028 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 Garden Flag
by MitchellTimeDesigns