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
6950 X-FM

Started by Shawndx

3 Replies
1691 Views
Last post March 01, 2012, 0427 UTC
by DimBulb
UNID 6930 AM

Started by Shawndx

4 Replies
2086 Views
Last post January 09, 2012, 0449 UTC
by RadioAnarchy
1 Replies
1195 Views
Last post November 20, 2015, 0027 UTC
by JoeFLIPS
9 Replies
2043 Views
Last post December 02, 2012, 2022 UTC
by Sealord
9 Replies
856 Views
Last post November 21, 2024, 1759 UTC
by Markokpik
7 Replies
2022 Views
Last post January 12, 2013, 1707 UTC
by Sealord
4 Replies
1250 Views
Last post February 16, 2020, 0143 UTC
by myteaquinn
1 Replies
1300 Views
Last post March 15, 2016, 0116 UTC
by Jim-MN
6925 USB UNID

Started by Shawndx

3 Replies
1429 Views
Last post December 29, 2012, 0108 UTC
by Beerus Maximus
6925 UNid

Started by Shawndx

0 Replies
913 Views
Last post September 02, 2012, 0036 UTC
by Shawndx
6925 AM UNID

Started by Shawndx

6 Replies
1865 Views
Last post November 24, 2012, 1749 UTC
by jFarley
2 Replies
1452 Views
Last post September 06, 2015, 1424 UTC
by ChrisSmolinski
10 Replies
3538 Views
Last post January 19, 2014, 1518 UTC
by ChrisSmolinski
1 Replies
749 Views
Last post June 15, 2019, 0238 UTC
by Treehouse SWL
3 Replies
758 Views
Last post June 10, 2020, 1237 UTC
by ChrisSmolinski
0 Replies
1746 Views
Last post June 14, 2008, 1546 UTC
by shortwave
2 Replies
18778 Views
Last post August 01, 2008, 0819 UTC
by Zoidberg
7 Replies
1069 Views
Last post March 30, 2023, 2328 UTC
by Pigmeat
1 Replies
508 Views
Last post October 03, 2024, 1434 UTC
by ChrisSmolinski
6 Replies
1580 Views
Last post October 04, 2024, 2332 UTC
by N2MLP

 

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