[Hallicrafters] SX-100 MARK 2 S-meter Zero

[james.liles]

Hi Joe:  The problem that you describe is usually the 50.75 kc I.F. 
alignment.  The MARK-1 defines the alignment to be 50.50 kc and the MARK-2, 
is 50.75 kc.  If the 50.75 kc I.F. is aligned to 50.50 kc the S-Meter is 
driven up in CW/SSB mode by BFO feedback.  Kindest regards Jim K9AXN

> Message: 8
> Date: Sat, 8 May 2010 21:56:14 -0700
> From: "jsloss" <k7mks at comcast.net>
> Subject: [Hallicrafters] SX-100 MARK 2 S-meter Zero
> To: <Hallicrafters at mailman.qth.net>
> Message-ID: <2A10271F033A42F5AB4E06EBE3758B45 at JLSLOSS>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Is the S-meter zero , w/ no input signal, in the AM mode AVC ON, the same 
> as the zero in the CW/SSB mode wilthout resetting the zero point?  Manual 
> makes no mention and my Mark 2 "zero point"  needs to be reset when 
> switching  between AM and CW/SSB or visa versa.
>
> Thanks for comments
>
> Joe k7mks.
>