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
1206 Views
Last post March 08, 2015, 0359 UTC
by William Hassig
1 Replies
969 Views
Last post June 27, 2015, 1242 UTC
by JoeFLIPS
1 Replies
2978 Views
Last post March 12, 2015, 1243 UTC
by ChrisSmolinski
1 Replies
735 Views
Last post November 17, 2020, 0109 UTC
by Bali_Frank
1 Replies
737 Views
Last post July 18, 2018, 1511 UTC
by ChrisSmolinski
1 Replies
824 Views
Last post March 08, 2015, 1504 UTC
by ByteBORG
1 Replies
639 Views
Last post November 21, 2020, 1508 UTC
by ChrisSmolinski
1 Replies
2040 Views
Last post March 04, 2015, 2011 UTC
by jFarley
1 Replies
1009 Views
Last post September 28, 2015, 2348 UTC
by ChrisSmolinski
UNID 6940 USB 2129 UTC 6/17/17

Started by JoeFLIPS

1 Replies
707 Views
Last post June 17, 2017, 2146 UTC
by William Hassig
1 Replies
712 Views
Last post July 12, 2018, 1805 UTC
by TheRelayStation
UNID 6880 USB 2258 UTC 6/9/17

Started by JoeFLIPS

1 Replies
1120 Views
Last post June 09, 2017, 2306 UTC
by PirateSWL
1 Replies
897 Views
Last post July 16, 2018, 2356 UTC
by Skipmuck
1 Replies
1150 Views
Last post March 01, 2015, 1820 UTC
by ByteBORG
1 Replies
931 Views
Last post March 01, 2015, 1700 UTC
by ChrisSmolinski
1 Replies
1102 Views
Last post March 01, 2015, 1630 UTC
by ChrisSmolinski
1 Replies
728 Views
Last post May 08, 2016, 0040 UTC
by refmo
1 Replies
1110 Views
Last post February 28, 2015, 2358 UTC
by jFarley
1 Replies
1071 Views
Last post December 19, 2015, 0043 UTC
by refmo
1 Replies
742 Views
Last post July 09, 2018, 0129 UTC
by Davep

 

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