[TenTec] Another Possible O-II Issue

[John Nason]

I have reproduced Grant's observation as well.  I am a
bit tone deaf so these things are harder for me to
recognize (maybe that is good).  But because of that
it does not bother me that much.  Let's see if TT
recognizes and will address this.  

73,
John NA9U

--- Grant Youngman <nq5t at comcast.net> wrote:

> > With PBT at 0, and in SSB, the main receiver
> always has the 
> > bottom of each filter set at 200 hertz.  The
> Sub-receiver 
> > sets this to a higher value.
> 
> The low end on the sub-receiver isn't behaving like
> it's simply fixed in a
> different position.  It appears to shift even higher
> as the bandwidth is
> narrowed.  At 3 Khz BW it takes around 50 Hz PBT
> shift on the Sub to make
> the two receivers sound about the same, which isn't
> unreasonable.  But at
> 1.8 Khz it takes on the order of a 600 Hz shift. 
> That's more than a slight
> difference, and indicates to me that the filter in
> the sub is not only
> getting narrower (which you would expect), but is
> also shifting position
> (which you wouldn't expect).
> 
> Grant/NQ5T
> 
> 
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