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
Random bursts

Started by WrongwayCorrigan

5 Replies
7017 Views
Last post August 17, 2020, 2158 UTC
by sat_dxer
UNID 7255

Started by das1220

5 Replies
2649 Views
Last post December 17, 2019, 0111 UTC
by Pigmeat
6 Replies
3347 Views
Last post November 03, 2015, 2147 UTC
by BDM
6 Replies
2190 Views
Last post October 26, 2015, 2303 UTC
by ByteBORG
6 Replies
4303 Views
Last post May 20, 2014, 0013 UTC
by Token
6 Replies
2610 Views
Last post April 18, 2018, 1634 UTC
by Traveling Wave
6 Replies
3103 Views
Last post August 30, 2013, 1147 UTC
by Beerus Maximus
6 Replies
2832 Views
Last post March 19, 2014, 1734 UTC
by Token
11515 Unid (AM)

Started by Marcy1

6 Replies
2126 Views
Last post March 26, 2024, 2244 UTC
by Marcy1
6 Replies
4476 Views
Last post December 30, 2011, 0757 UTC
by cmradio
6 Replies
1885 Views
Last post April 11, 2020, 1251 UTC
by EA2NR
6 Replies
3052 Views
Last post January 18, 2014, 0129 UTC
by jFarley
6 Replies
2572 Views
Last post May 01, 2016, 0331 UTC
by EliteData
6 Replies
3159 Views
Last post August 10, 2014, 0344 UTC
by JohnS
6 Replies
4047 Views
Last post December 28, 2015, 1514 UTC
by flexoman61
RF Noise Identification

Started by WrongwayCorrigan

6 Replies
5198 Views
Last post July 03, 2011, 1808 UTC
by WrongwayCorrigan
6 Replies
2538 Views
Last post September 11, 2018, 1842 UTC
by Sealord
6 Replies
3773 Views
Last post January 07, 2013, 2004 UTC
by DimBulb
6 Replies
2521 Views
Last post July 05, 2014, 1500 UTC
by ChrisSmolinski
6 Replies
3314 Views
Last post February 23, 2014, 0133 UTC
by Token

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground Mug
HFUnderground Mug
by MitchellTimeDesigns