[TenTec] Shields in Omni VI

[Steve Hunt]

Ken,

Gary, W7TEA, kindly sent me a photo of the underside of his early Omni VI+ which has the screening in place. There are no holes in my "inner panel" which would allow screens to be attached, so this must have been a mod on later Omni VIs / Omni VI+s.

I have put temporary screens in place but they made no difference!

One final symptom on the "birdies" which totally mystifies me: If I adjust the PBT control until I hear a birdie, then press the NAR button, the pitch of the birdie changes by a few hundred Hz; pressing the NAR button again returns it to its original pitch. I can't see anything on the schematics that would suggest that the NAR button affects any of the oscillators!

I think I'm just going to have to live with it.

73,
Steve
  ----- Original Message ----- 
  From: Ken Brown 
  To: Discussion of Ten-Tec Equipment 
  Sent: Monday, November 27, 2006 2:01 AM
  Subject: [TenTec] Shields in Omni VI


  Hi Steve,

  The photos in the manual for my Omni VI do not show any of the shielding 
  in place. I was wondering if I was confused and that the cover plates I 
  remembered are in my Paragon and not in the Omni VI. When I read the 
  manual for the Omni VI in the section describing how to install the 
  optional filters, it clearly states that you need to "Remove the panel 
  covering the PBT board" or "Remove the panel covering the 9 MHz filter 
  board." So, even without opening up my Omni VI, I think I can say with a 
  fair degree of certainty, "Yes there should be cover plates over the 9 
  MHz and 6.3 MHz optional  filter access holes." I will be interested to 
  hear whether adding shielding plates over those holes makes the birdie 
  go away.

  Ken N6KB

  Steve Hunt wrote:
  Ken,
   
  I only just spotted your question about shield covers over the optional 
  filter slots.
   
  There aren't any - just holes! Should there be? I don't recall seeing 
  any obvious fixing holes for covers or I might have been suspicious.
   
  73,
  Steve G3TXQ
   
   

  _______________________________________________
  TenTec mailing list
  TenTec at contesting.com
  http://lists.contesting.com/mailman/listinfo/tentec