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
10 Replies
2739 Views
Last post October 18, 2014, 1502 UTC
by ChrisSmolinski
1 Replies
950 Views
Last post December 23, 2017, 0209 UTC
by hammarhead
0 Replies
543 Views
Last post April 01, 2021, 0123 UTC
by blw
0 Replies
491 Views
Last post October 17, 2023, 1126 UTC
by ChrisSmolinski
1 Replies
282 Views
Last post November 12, 2024, 0352 UTC
by myteaquinn
UNID 6927 USB 0355 UTC 5/27/16

Started by JoeFLIPS

0 Replies
869 Views
Last post May 27, 2016, 0359 UTC
by JoeFLIPS
3 Replies
1197 Views
Last post May 11, 2017, 2249 UTC
by JoeFLIPS
1 Replies
1112 Views
Last post April 25, 2015, 1630 UTC
by ByteBORG
1 Replies
467 Views
Last post June 07, 2020, 1208 UTC
by Skipmuck
0 Replies
813 Views
Last post November 23, 2019, 1451 UTC
by WWBR
1 Replies
1231 Views
Last post February 02, 2017, 1538 UTC
by JoeFLIPS
1 Replies
795 Views
Last post June 15, 2019, 1803 UTC
by relaxing
2 Replies
501 Views
Last post June 05, 2020, 2126 UTC
by blw
9 Replies
1309 Views
Last post October 10, 2020, 2201 UTC
by Davep
3 Replies
659 Views
Last post June 15, 2019, 2229 UTC
by refmo
12 Replies
1211 Views
Last post February 07, 2022, 0021 UTC
by myteaquinn
5 Replies
1660 Views
Last post May 31, 2015, 1429 UTC
by ChrisSmolinski
2 Replies
993 Views
Last post November 01, 2015, 0214 UTC
by Mentholyptus
3 Replies
588 Views
Last post December 10, 2023, 1941 UTC
by Skipmuck
8 Replies
2205 Views
Last post March 08, 2015, 1417 UTC
by ByteBORG

 

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