the procedure is given at http://tentecwiki.org/doku.php?id=563calibrate
Barry N1EU
On Mon, Jul 31, 2017 at 3:09 AM, Dukes HiFi <dukeshifi@comcast.net> wrote:
> The reference oscillator provides the reference for the PLL loop on the
> crystal oscillator board. Thus, an error in this signal would cause an
> error on all bands.’'
>
> This same reference oscillator also is used in the 5 to 5.5 MHz “VFO” so
> that would be off on all bands if the reference were not correct.
>
> The BFO is not likely your root cause because this would produce received
> audio tone problems, sort of like the PBT setting’s being offset. Things
> would be different on one sideband compared with the other.
>
> Gary
>
> PS: I still have a few of the TCXO replacement reference oscillators for
> the Omni 6.
>
>
>
> > On Jul 30, 2017, at 4:14 PM, John King via TenTec <tentec@contesting.com>
> wrote:
> >
> > Fellow Ten Tec owners, I have an Omni VI with factory upgrade and no
> one else has ever worked on it or adjusted except for an S meter
> replacement that I did. It is my favorite of all my rigs including Kenwoods
> and Icoms.
> > It has come to my attention that the frequency has shifted downward
> about 89 hz. I call a net on 3.925 mhz and I set the dial to 3.924.91 .
> According to WWV and my other solid state rigs the OMNI VI is off by that
> amount on all bands when checked on LSB. No checks have been made on USB.
> > I don't know which trimmer to adjust that sets a frequency for all
> bands. Until I am certain which trimmer and where exactly it is located, I
> will NOT Touch anything inside. The modular board construction is
> confusing for an old geezer like me. Dou you have input? Thanks and 73,
> John, K5PGW
> > _______________________________________________
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>
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