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
3 Replies
2842 Views
Last post January 01, 2014, 1813 UTC
by Beerus Maximus
4 Replies
1910 Views
Last post January 02, 2014, 0010 UTC
by Pigmeat
5 Replies
1093 Views
Last post July 04, 2019, 2148 UTC
by RainBrandy
8 Replies
2124 Views
Last post September 06, 2016, 1425 UTC
by ChrisSmolinski
KHAT 6927 USB 0254 7/20/15

Started by JoeFLIPS

4 Replies
2437 Views
Last post July 20, 2015, 1443 UTC
by ChrisSmolinski
9 Replies
3072 Views
Last post July 16, 2015, 0057 UTC
by R4002
9 Replies
2961 Views
Last post July 04, 2015, 0122 UTC
by ChrisSmolinski
KHAQQ Amelia Earhart

Started by Fansome

2 Replies
1220 Views
Last post July 03, 2010, 1905 UTC
by Fansome
9 Replies
2519 Views
Last post July 08, 2014, 0100 UTC
by Tom S
7 Replies
1222 Views
Last post November 23, 2023, 0019 UTC
by William Hassig
4 Replies
521 Views
Last post May 08, 2025, 0351 UTC
by Professor
10 Replies
1373 Views
Last post June 15, 2020, 0100 UTC
by Treehouse SWL
0 Replies
1035 Views
Last post August 14, 2010, 1347 UTC
by Zoidberg
5 Replies
2317 Views
Last post January 15, 2017, 2339 UTC
by Yankee Charlie
9 Replies
1821 Views
Last post December 31, 2016, 2319 UTC
by ChrisSmolinski
KFBN 6925 USB 0115 UTC 1/27/17

Started by JoeFLIPS

4 Replies
1940 Views
Last post January 27, 2017, 1629 UTC
by ChrisSmolinski
KERR? 6930U

Started by Zoidberg

1 Replies
1132 Views
Last post February 05, 2011, 0218 UTC
by outhouse radio
4 Replies
2148 Views
Last post April 13, 2013, 1821 UTC
by 07code04stalker1776
4 Replies
1974 Views
Last post April 13, 2013, 1938 UTC
by Dr. Amp
6 Replies
895 Views
Last post August 13, 2023, 2052 UTC
by Big Badfish Al

 

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