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
0 Replies
2101 Views
Last post September 26, 2015, 1102 UTC
by Dag
0 Replies
1318 Views
Last post July 03, 2018, 1635 UTC
by Daniel Wyllyans
0 Replies
1559 Views
Last post October 20, 2014, 1544 UTC
by Token
0 Replies
1411 Views
Last post October 17, 2014, 1753 UTC
by ChrisSmolinski
0 Replies
1375 Views
Last post December 23, 2016, 2345 UTC
by refmo
0 Replies
1447 Views
Last post October 16, 2014, 1246 UTC
by ChrisSmolinski
0 Replies
1762 Views
Last post October 14, 2014, 0050 UTC
by Barycenter
0 Replies
2876 Views
Last post October 10, 2014, 1507 UTC
by AlanC
0 Replies
1955 Views
Last post October 09, 2014, 0047 UTC
by halifaxtap
0 Replies
1420 Views
Last post October 08, 2014, 2235 UTC
by rdla4
0 Replies
1240 Views
Last post May 21, 2016, 2239 UTC
by Ct Yankee
0 Replies
1544 Views
Last post March 18, 2015, 0132 UTC
by blw
0 Replies
1597 Views
Last post October 03, 2014, 1830 UTC
by Rafman
0 Replies
2136 Views
Last post September 27, 2014, 2225 UTC
by ka1iic
0 Replies
2271 Views
Last post September 23, 2014, 0326 UTC
by Barycenter
0 Replies
1355 Views
Last post April 07, 2018, 2246 UTC
by digitalmod
0 Replies
1475 Views
Last post September 19, 2014, 2231 UTC
by rdla4
0 Replies
962 Views
Last post December 21, 2022, 0115 UTC
by kris
0 Replies
928 Views
Last post December 19, 2022, 1548 UTC
by ~SIGINT~
0 Replies
1524 Views
Last post September 15, 2014, 1847 UTC
by yamanx

 

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