[1000mp] 1000MP MkV Tuner

[J. C. Mc Laughlin]

Dear Ray KB5DO:    I must have left out a few critical words.  "off-band 
noise during the autotune calibration" is not a factor.  The issue is about 
spurious signals being received when the tuner is "on."  That is to say that 
signals are heard when the tuner is "on" that are on a different frequency 
than the frequency indicated by the transceiver.  Such spurious signals 
result from a non-linear transform or device in the signal path.  [Linear 
transforms or devices do not create new frequencies.]

I too rarely use the tuning feature of my FT1000MP MkV (200 watt version). 
When I do turn "on" the tuner, I do not hear spurious signals.  However, my 
colleague does hear spurious signals.

Thanks again.  73  Mac  N8TT

J. McLaughlin;  Michigan, USA
Home:  JCM at power-net.net
----- Original Message ----- 
From: "ray reed" <ray1965 at hotmail.com>
To: <jcm at power-net.net>
Sent: Tuesday, June 01, 2010 3:36 AM
Subject: RE: 1000MP MkV Tuner



OK The tuner is turned on or off at in the Menu selection 8-8.  After a 
reset I go to each band and go to cw portion and push tuner button
once.  I go to ssb section and press button once.  I do not press button 
again each time I go back to that band.  I guess I do not understand why a 
large concern with off-band noise during the autotune calibration.  I 
probably do not hit the tuner button 6 or 7 times per year..  I would be 
more concern about tuning antennas.  73




> From: jcm at power-net.net
> To: ray1965 at hotmail.com
> CC: 1000mp at mailman.qth.net
> Subject: Re: 1000MP MkV Tuner
> Date: Mon, 31 May 2010 20:10:13 -0400
>
> Dear Ray KB5DO: No. He is only asserting (pressing) the tuner buton
> once and that turns on the light associated with the tuner.
>
> Good observation. 73, Mac N8TT
> J. McLaughlin; Michigan, USA
> Home: JCM at power-net.net
> ----- Original Message ----- 
> From: "ray reed" <ray1965 at hotmail.com>
> To: <jcm at power-net.net>
> Sent: Monday, May 31, 2010 7:01 PM
> Subject: RE: 1000MP MkV Tuner
>
>
>
> If you mean by keeping the tuner asserted you mean he is pushing the tuner
> button, he is headed for big repair bill. The tuners are fragile and
> expensive. I know this personnaly. HA 73 Ray
>
> > From: jcm at power-net.net
> > To: ray1965 at hotmail.com
> > CC: 1000mp at mailman.qth.net
> > Subject: Re: 1000MP MkV Tuner
> > Date: Mon, 31 May 2010 16:41:01 -0400
> >
> > Dear Ray KB5DO: Thank you for your note and interest.
> >
> > Yes. Both of us understand that only about 30 antenna settings (each
> > linked
> > to a frequency) are allowed. I have written down the frequencies where I
> > have engaged my tuner. So, if I need to use the tuner on (say) a band 
> > edge
> > I tune the transceiver to the exact same frequency used last time (and
> > recorded on a card) and then assert the tuner.
> >
> > I have not quite got my head around why my colleague feels the need to
> > keep
> > the tuner in his FT1000 MkV asserted when he is tuning around. However, 
> > he
> > receives all sorts of spurious signals when he receives while the tuner 
> > is
> > asserted.
> >
> > He did do a master reset, which you note gets one back to zero storage,
> > and
> > still hears strong, wrong signals.
> >
> > Again, thanks for your observation. 73, Mac N8TT
> >
> > J. McLaughlin; Michigan, USA
> > Home: JCM at power-net.net
> > ----- Original Message ----- 
> > From: "ray reed" <ray1965 at hotmail.com>
> > To: <jcm at power-net.net>
> > Sent: Monday, May 31, 2010 2:03 PM
> > Subject: 1000MP
> >
> >
> >
> > Hi I just read you note on the 1000mp forum. Did I understand you
> > correctly, that the cross channel interference is only when you engage 
> > the
> > tuner with the tuner button? You do understand when this button is 
> > pushed,
> > the tuner applies transmitter power and seeks to match the antenna. You
> > are
> > only allow to save so many antenna settings. I believe about 2 per band.
> > When you reach end, it does not tune antenna properly. You then have to
> > reset and re-tune each band. It is all explained in owner manual. Hope
> > this might help.
> >
> >
> >
> > Ray KB5DO
> >
>

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