[Hammarlund] SP600 - Reduced gain on 13kHz bandwidth

[Les Locklear]

Every SP-600 I have ever owned or operated works like you described. Likewise every R-390A I have ever owned the carrier level drops when switched to the 16 kc filter.

Les Locklear
Hammarlund HQ-180A
Hammarlund SP-600 Re-Engineered by John R. Leary
JRC NRD-545
Ten Tec RX-350

"As you wander through this world you see lots of funny men.
Some will rob you with a six-gun, some with a fountain pen."

--Pretty Boy Floyd



  ----- Original Message ----- 
  From: David Wise 
  To: Hammarlund at mailman.qth.net 
  Sent: Thursday, January 07, 2010 4:51 PM
  Subject: [Hammarlund] SP600 - Reduced gain on 13kHz bandwidth


  I'm taking a second look for problems in my daily runner.
  One thing I noticed is that the gain on 13kHz bandwidth is
  about 1/3 that of 3kHz and 8kHz.  3 and 8 are equal.
  The manual shows a response curve where all bandwidths
  peak at the same gain.  It's too good, makes me suspect
  someone just drew it reflecting expectations.
  I'd like to compare notes with other SP600 owners.
  Does your signal strength reading stay the same from 3 to 8 to 13?

  Thanks,
  Dave Wise
  SWL in Hillsboro Oregon
  ______________________________________________________________
  Hammarlund mailing list
  Home: http://mailman.qth.net/mailman/listinfo/hammarlund
  Help: http://mailman.qth.net/mmfaq.htm
  Post: mailto:Hammarlund at mailman.qth.net

  List Administrator: Duane Fischer, W8DBF
  ** For Assistance: dfischer at usol.com ** 


  This list hosted by: http://www.qsl.net
  Please help support this email list: http://www.qsl.net/donate.html


------------------------------------------------------------------------------



  No virus found in this incoming message.
  Checked by AVG - www.avg.com 
  Version: 9.0.725 / Virus Database: 270.14.129/2605 - Release Date: 01/07/10 01:35:00
-------------- next part --------------

No virus found in this outgoing message.
Checked by AVG - www.avg.com 
Version: 9.0.725 / Virus Database: 270.14.129/2605 - Release Date: 01/07/10 01:35:00