[time-nuts] Morion MV89 output level?

[Azelio Boriani]

Don't be afraid and open up your MV89. I have done this with many MV201
without problems.

On Thu, Feb 9, 2012 at 8:25 AM, Sam <lists at digitalelectric.com.au> wrote:

> I just powered up one of my MV89A's and measured ~7 dBm into my HP 8920B,
> but as Tom has mentioned some MV89A's develop
> a dry joint around the output bypass capacitor
> http://www.hellocq.net/forum/showthread.php?t=283551
>
> What is the date and revision number on yours? I have 2 here 07/34 and
> 07/31 both Rev 3 bought from fluke.l
>
>
> Sam
>
>
> > Got my replacement FE-5680 and a MV89 in from Nichegeek.  I figured
> > I'd better power up and check the MV89 before I let 'em know
> > everything was ok.  The MV89 is warming up nicely, the current is
> > down to 290 mA (and still dropping), but the output seems low; about
> > 40 mV RMS as measured on a scope with a 10Meg 10x probe.  (Datasheet
> > spec is +7 +/- 2 dBm.)  The output is too weak to reliably trigger my
> > 5345A counter.
> >
> > The reference voltage measures 4.90 VDC.
> >
> > If anyone can make a quick measurement on their MV89, I'd appreciate it.
> >
> >
> > thanks!
> > newell  N5TNL
> >
> >
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