[time-nuts] eBay seller has Z3801A upgraded to 58503A

Bob Camp kb8tq at n1k.org
Thu Nov 27 19:14:20 EST 2014


Let’s say that an OCXO based new part is $500. Who knows if that applies to the Furry. If it does, that’s a really good price. Anything below that and Santa Claus is coming to your house early. 

Are you putting this in a commercial system?

Do you expect to need warranty support?

I’d bet the reasonable answer to both is no.

The KS boxes are $150 for the pair. They are new old stock. 

Do you believe the newer part works better than the KS ADEV wise?

Again I’d say the reasonable answer is no. The KS boxes are essentially the same as a Z3801 in terms of ADEV. 

You can get (in this example case) three of the KS box pairs and still save money over the new part. Shipping might tip that one way or the other. 

Why would this matter?

With three boxes, you can check them against each other and rule in / rule out problems with any one pair. That’s keeping everything plug and play. If you want to do a few “wire a connector” mods, you can have six sources to compare against each other. You can also have a whole bunch of spares ….


> On Nov 27, 2014, at 5:58 PM, Dr. David Kirkby (Kirkby Microwave Ltd) <drkirkby at kirkbymicrowave.co.uk> wrote:
> Dr David Kirkby
> On 27 Nov 2014 23:27, "Brooke Clarke" <brooke at pacific.net> wrote:
>> Hi Dave:
>> http://www.ebay.com/itm/171504585820
>> http://www.prc68.com/I/LTE-LiteGPSDO.html
>> Brooke Clarke
> I was aware of them, and are still contemplating getting one, but the Fury
> from Jackson Labs uses an OCXO, so will have better performance.  I don't
> know what that costs though.  Clearly more than the LTE Lite.
> Siad should consider putting the Fury on eBay,  but I would rather pay
> direct, which would save them the eBay fees, so hopefully cost me less.
> Dave
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