[Kenwood] 530S, transmit mixer

Tue, 08 Jan 2002 22:00:55 -0500

Steve,
    You missed to the point that the problem only when the rig is in the
transmit operation mode.  Receive signals are still peaked with the Drive contol
in the 12- oclock position as directed by the aligment proceedure on page 26 of
the OP manual.
    A signal was peaked at TP4 with a mkr signal source and RF frequency
measured on 20M.  The 530S was then placed in the transmit mode and the RF
signal at TP4 was peaked as much as was possible and  frequency measured.  The
RF frequency was the same as in receive mode but the drive control had to be
rotated  to the full clockwise position.  This still was not even full output
measured into a dummy load.

73,
Roger Posthumus

Stephen Goldberg wrote:

> Roger,
>
> See your operating manual, page 26, and re-peak the drive coils as indicated
> in the instructions.
>
> Steve W4IMF
>
> ----- Original Message -----
> From: <[email protected]>
> To: <[email protected]>
> Sent: Tuesday, January 08, 2002 12:04 PM
> Subject: [Kenwood] 530S, transmit mixer
>
> > HELP!!!,
> >  I have a 530S that has a problem during transmit.  The tuned circuit on
> > the output of the transmit RF mixer controlled by the drive control has
> > a shift in resonce in the transmit mode ( CW or SSB).  This can be
> > corrected by retuning the drive control to peak the RF out.  This works
> > on 80 & 40, but on 20 thru 10 there is not enough adjustment in the
> > drive control variable capacitor.  When adjusting the drive conrol the
> > receive signal is reduced.  Returning the drive control to the 12 oclock
> > position returns the receive signal to full stength.
> >         Any suggestions ??????????
> >
> > 73
> > Roger Posthumus
> > WB2YQA
> > Sun City Center FL.
> >
> > _______________________________________________
> > Kenwood mailing list
> > [email protected]
> > http://mailman.qth.net/mailman/listinfo/kenwood
> >
>
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