[time-nuts] Morion MV89 output level?

[Bob Camp]

Hi

Are you worried about phase noise at 100 Hz and above (Trimble OCXO) or
about sort term stability at 1 to 100 seconds (MV89)? Two different things,
and you don't get both at the same time on the crop of what's up for auction
at the moment. 

Of course you can get a broken one in either batch and there are a *lot*
more MV89's out there to sort through.

Bob

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Chris Albertson
Sent: Thursday, February 09, 2012 12:19 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Morion MV89 output level?

On Wed, Feb 8, 2012 at 11:25 PM, Sam <lists at digitalelectric.com.au> wrote:
> ...but as Tom has mentioned some MV89A's develop
> a dry joint around the output bypass capacitor....


Now that I think of it, it is surprising to me that OCXOs even work.
About the worst thing you can do to kill the reliability of
electronics is  store and operate it inside a heated oven.  Cracks in
solder joints are the kind of thing you'd expect after many thermal
cycles

One question:  I was thinking about buying one of these MV89As.   Are
they the best of the $25 OCXOs for short to medium term phase
noise/stabilty.   Trimble, Isotherm and others are all about the same
price on eBay.  How to decide which to get?


Chris Albertson
Redondo Beach, California

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