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
466 Views
Last post October 01, 2022, 0603 UTC
by BryanDX
1 Replies
776 Views
Last post August 09, 2015, 0039 UTC
by jFarley
1 Replies
733 Views
Last post August 09, 2015, 0034 UTC
by jFarley
1 Replies
501 Views
Last post December 02, 2017, 1837 UTC
by MDK2
1 Replies
818 Views
Last post August 09, 2015, 0002 UTC
by ByteBORG
1 Replies
1039 Views
Last post August 18, 2015, 1528 UTC
by jFarley
1 Replies
1284 Views
Last post December 10, 2016, 0723 UTC
by Ron - Calif.
1 Replies
883 Views
Last post May 28, 2017, 1952 UTC
by ChrisSmolinski
1 Replies
836 Views
Last post November 20, 2016, 2247 UTC
by Markokpik
1 Replies
815 Views
Last post January 10, 2016, 2054 UTC
by ChrisSmolinski
1 Replies
664 Views
Last post October 15, 2021, 1235 UTC
by Markokpik
1 Replies
1317 Views
Last post August 06, 2015, 0037 UTC
by aquabat
1 Replies
767 Views
Last post January 16, 2018, 0114 UTC
by digitalmod
1 Replies
536 Views
Last post August 16, 2022, 0150 UTC
by Molvania Poacher
1 Replies
747 Views
Last post March 20, 2022, 2014 UTC
by MojaveBeaconeer
1 Replies
799 Views
Last post June 15, 2019, 1803 UTC
by relaxing
1 Replies
1023 Views
Last post August 02, 2015, 1206 UTC
by hsmith77
1 Replies
1178 Views
Last post August 02, 2015, 1701 UTC
by ChrisSmolinski
1 Replies
817 Views
Last post July 30, 2016, 2331 UTC
by jFarley
OTR

Started by Fred Smith

1 Replies
1452 Views
Last post August 02, 2015, 0046 UTC
by flexoman61

 

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