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

[Said Jackson]

Plus the Z3801A seems to just work.

On the Lucent boxes we had to suffer through many 100's of posts over the last month...

Sent From iPhone

> On Nov 27, 2014, at 16:57, Bob Camp <kb8tq at n1k.org> wrote:
> 
> Hi
> 
> Phase noise at 100 Hz, I’ll give you that on to the Z3801. ADEV on the sample I have of the 3801 and KS boxes are pretty darn close. 
> 
> Bob
> 
>> On Nov 27, 2014, at 6:45 PM, Said Jackson via time-nuts <time-nuts at febo.com> wrote:
>> 
>> The 58503A we got have much better ADEV and PN than what was posted recently on the Lucent boxes. TVB has many plots of the Z3801A on his website - same box.
>> 
>> They used to be $399 on eBay, now likely $500 or more, but you get what you pay for..
>> 
>> Sent From iPhone
>> 
>>> On Nov 27, 2014, at 16:14, Bob Camp <kb8tq at n1k.org> wrote:
>>> 
>>> Hi
>>> 
>>> 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 ….
>>> 
>>> Bob
>>> 
>>> 
>>>> 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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