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
23401 Views
Last post July 25, 2019, 1839 UTC
by R4002
1 Replies
1063 Views
Last post December 05, 2018, 1325 UTC
by R4002
1 Replies
1253 Views
Last post October 06, 2021, 0015 UTC
by RobRich
2 Replies
3574 Views
Last post July 30, 2019, 1117 UTC
by ChrisSmolinski
2 Replies
3025 Views
Last post December 05, 2018, 1905 UTC
by Rob.
0 Replies
978 Views
Last post January 06, 2019, 1534 UTC
by ChrisSmolinski
0 Replies
1275 Views
Last post August 01, 2018, 1333 UTC
by ChrisSmolinski
3 Replies
1810 Views
Last post March 08, 2019, 1837 UTC
by Pigmeat
5 Replies
5342 Views
Last post July 30, 2019, 1823 UTC
by R4002
0 Replies
1031 Views
Last post April 26, 2023, 1432 UTC
by ChrisSmolinski
2 Replies
1244 Views
Last post January 06, 2019, 1913 UTC
by ChrisSmolinski
0 Replies
1663 Views
Last post August 11, 2018, 1310 UTC
by ChrisSmolinski
3 Replies
3039 Views
Last post July 30, 2019, 1827 UTC
by ChrisSmolinski
1 Replies
1382 Views
Last post February 13, 2020, 1446 UTC
by R4002
10 Replies
2863 Views
Last post August 18, 2018, 1953 UTC
by ChrisSmolinski
0 Replies
2518 Views
Last post July 30, 2019, 2007 UTC
by ChrisSmolinski
0 Replies
976 Views
Last post July 13, 2020, 1138 UTC
by ChrisSmolinski
0 Replies
2784 Views
Last post July 31, 2019, 2304 UTC
by ChrisSmolinski
0 Replies
1012 Views
Last post July 14, 2020, 1220 UTC
by ChrisSmolinski
0 Replies
1186 Views
Last post October 19, 2021, 1157 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 T-Shirt
by MitchellTimeDesigns