[time-nuts] Not so cheap GPSDO's

Azelio Boriani azelio.boriani at gmail.com
Thu Feb 11 03:34:16 EST 2016

The Z3815A has the famous hockey puck OCXO designed by Rick Karlquist.
I have one Z3815A from the seller you mention: it works but, inside,
there was heavy rust on the Furuno GPS receiver case. The old Furuno
receiver in the Z3815A has the GPS week rollover bug as all the
surplus Z-series HP GPSDO's. If you buy either one (Z3816 or Z3815 or
both) plan to do some maintenance/cleaning on them.

On Thu, Feb 11, 2016 at 8:30 AM, Joseph Gray <jgray at zianet.com> wrote:
> Moving upscale to more well known models that cost quite a bit more, I
> see several Z3805A units. It looks like more than one type of OCXO was
> used in these. Which variant would you recommend?
> The less expensive Z3805A's look like they have been beat to crap,
> before or after being pulled from the scrap pile. I'd worry about
> damage to the OCXO in these. For more money, yixunhk has some nicely
> packaged units and AFAIK he has a good reputation.
> Another from yixunhk is this Z3816A for $350 w/shipping. This package
> looks similar to my Z3801A:
> http://www.ebay.com/itm/271906200825
> And finally, for $440 w/shipping, yixunhk has this nicely repackaged Z3815A:
> http://www.ebay.com/itm/251226090087
> Comments on all of these is welcome. Of these "Z" units, which one
> would you buy, and why?
> Thanks again,
> Joe Gray
> W5JG
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