RadioReference on Facebook   RadioReference on Twitter   RadioReference Blog
 

Go Back   The RadioReference.com Forums > HF / MW / LW Monitoring > Shortwave Broadcast


Shortwave Broadcast - Discussions regarding shortwave broadcasters

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 03-14-2016, 2:33 AM
majoco's Avatar
Member
  Shack Photos
Shack photos
 
Join Date: Dec 2008
Location: New Zealand
Posts: 2,467
Default Another wotizzit....

The sound is here....

https://soundcloud.com/majoco21/nois...6-03-14-111549

and the picture is here...

On AM it's reasonably quiet, but on Sync Am and SSB it blows yer ears off! There's no NFM or FM noise at all, and the very small carrier stays stuck on 9900kHz. Right in the middle of the 30m BC band.




...the noise is still there at 0630z. It almost sounds like the pattern is rotating with a period of over two minutes. Overall it's signal strength is quite low, say S5 to S7 but if I just measure the peak it's about S9 to 10+.

Any clues? Remember I'm in the South Pacific so it could well come from Oztralia.
__________________
Cheers - Martin ZL2MC - Palmerston North

Last edited by majoco; 07-02-2017 at 10:18 PM..
Reply With Quote
Sponsored links
  #2 (permalink)  
Old 03-14-2016, 2:41 PM
Member
   
Join Date: Jun 2010
Location: Mojave Desert, California, USA
Posts: 1,877
Default

This is either SuperDARN or TIGER HF radar. Normally these radars frequency hop, but occasionally they stay on one frequency for an extended period. That is what you have here.

The burst are more or less the standard burst these radars send, minus the freq hop, and you can see the power level change as the radar beam steers.

T!
Reply With Quote
  #3 (permalink)  
Old 03-14-2016, 3:20 PM
majoco's Avatar
Member
  Shack Photos
Shack photos
 
Join Date: Dec 2008
Location: New Zealand
Posts: 2,467
Default

Thanks, Token. After my 0630z session I found quite a few more weaker transmissions with the same sound right up to 17MHz.
__________________
Cheers - Martin ZL2MC - Palmerston North
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 9:45 AM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
All information here is Copyright 2012 by RadioReference.com LLC and Lindsay C. Blanton III.Ad Management by RedTyger
Copyright 2015 by RadioReference.com LLC Privacy Policy  |  Terms and Conditions