lists at rtty.us
Fri Jun 11 09:24:30 EDT 2010
The 260's are better for environmental than a 10811, same / worse than a 1938. The "typical" 260 beats the "typical" 10811 or 1938 on short term / medium term stability. There are some 10811's and 1938's that will indeed beat some 260's for short term stability.
On Jun 11, 2010, at 9:04 AM, Steve Rooke wrote:
> On 11 June 2010 07:24, Murray Greenman <Murray.Greenman at rakon.com> wrote:
>> If you have one of the earlier Z3815A units, you will find the superb HP
>> E1938A 10MHz reference oscillator inside. There were manufacturing
>> problems with these units, I understand, and later ones (like mine) have
>> a Milliren 260 series 5MHz DOCXO (with excellent specs) on a daughter
>> board made by Symmetricom.
> That Millren 260 series DOCXO is used in the Z3805A units too. Any idea how
> they compare to the E1938A or 10811?
> Steve Rooke - ZL3TUV & G8KVD
> The only reason for time is so that everything doesn't happen at once. -
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