[R-390] VFO End points
Barry
n4buq at knology.net
Fri May 24 14:00:31 EDT 2013
Make that 994kc in ten turns. Sorry about that.
Regards,
Barry - N4BUQ
----- Original Message -----
> From: "Barry" <n4buq at knology.net>
> To: R-390 at mailman.qth.net
> Sent: Friday, May 24, 2013 12:57:27 PM
> Subject: Re: [R-390] VFO End points
>
> Actually, it travels less than 1,000kc in ten turns. It's a bit
> counter-intuitive, but since you have to tune past the zero mark on
> both ends by 3kc, then the range is only 996kc in ten turns.
>
> The adjustment may affect one end more than the other, but I'm pretty
> sure it will affect both ends.
>
> Regards,
> Barry - N4BUQ
>
> > Barry,
> > It goes more then 1,000 kc. It just isn't accurate at the ends.
> > The
> > high end zeros at 3 past and the low Zeros at 3 before which is a
> > total
> > of 6 off.
> > I'll try the End Point adjustment, but I am afraid if I lower the
> > upper
> > point by 3 to zero beat on 1,000 then the low end is going to zero
> > on
> > -994.
> > Maybe I'm wrong.
> > Will see.
> >
> > Thanks,
> > Gordon
> > N6WK
> >
> >
> > On 5/24/2013 10:00 AM, Barry wrote:
> > > If I'm not mistaken, the single endpoint adjustment affects the
> > > overall range the PTO covers in 10 turns. Yours is not quite
> > > changing a full 1,000kc. If you change the endpoint setting, it
> > > should affect both ends.
> > >
> > > I think you're within specs but you can probably get it closer if
> > > you want.
> > >
> > > Someone please chime in here if I'm incorrect.
> > >
> > > Regards,
> > > Barry - N4BUQ
> > >
> > > ----- Original Message -----
> > >> From: "Gordon" <gordon at n6wk.com>
> > >> To: R-390 at mailman.qth.net
> > >> Sent: Friday, May 24, 2013 11:28:37 AM
> > >> Subject: [R-390] VFO End points
> > >>
> > >> I noticed today that my 390A zero beats at +003 and at -997
> > >> so it is 3 high on one end and 3 low one the other. It is pretty
> > >> close
> > >> to dead on at the 500 Mark.
> > >> Will the single End point adjustment at +000 fix this or make
> > >> the
> > >> low
> > >> end worse?
> > >>
> > >> Thanks,
> > >> Gordon
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