Operating Quirks of the Most Accurate Clock

Charles W. Morehouse w4gbw at BREVARD.NET
Sat Sep 22 02:51:24 EDT 2001


Guess uou can't forward to the list. Try again.
Wayne;
W4GBW

morris at cogent.net wrote:

> You need to send this to the list, not me.
> And I should have said
> "> the last batch were actually pretty good - the LAST change
>  > made a huge difference."
>
> Mike
>
> At 03:27 AM 09/22/2001 -0300, you wrote:
> >Hi All,
> >Yes would like to see any changes. As an RF engineer was thinking of a
> >little redesign.
> >Perhaps doing dome changes to the IF. Maybe change the crystal filter. 10
> >mhz is usually good here in central Florida. Was thinking of eliminating the
> >band switching circuits and optimizing for one band. Will let you know my
> >results. Later.
> >Wayne;
> >W4GBW
> >
> >Mike Morris WA6ILQ wrote:
> >
> > > I remember reading somewhere that there were a couple of
> > > changes made to the RX board over the production run, and
> > > the last batch were actually pretty good - the second change
> > > made a huge difference.  If somebody has the tech notes on
> > > this unit maybe they could tell us what parts were changed.
> > > Maybe they could post the factory tuning procedure... as old
> > > as these units are some parts have to have drifted and a little
> > > peaking by the proper procedure couldn't hurt..
> > >
> > > Mike
> > >
> > > At 11:10 AM 09/21/2001 -0400, Paul Dean wrote:  (trimmed)
> > > >Read the other trplies indicating real poor performance.  Wonder if
> > > >there was a large variance in the receiver performance in diferent
> > > >production runs?
> > >
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