Dieter,
A quick guess - the new crystal is more "loose" and a single crystal can
be pulled (frequency shifted) more easily than the older crystals that
needed to use 2 crystals in parallel for 'de-Q' purposes.
73,
Don W3FPR
Dieter Mayr wrote:
> Hello
>
>
>
> I am curious what the difference in the difference is in specification
>
> between the new PLL-Ref crystal ECS 12.09-CD and the old ones ECS D 12.09 S.
>
> I has a look at the ECS website but did not find useful informations.
>
>
>
> Thanks
>
> 73 de OE2CDM, Dieter
>
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