[time-nuts] Ashtech Z12 vs. Z12T

Magnus Danielson magnus at rubidium.dyndns.org
Wed Jun 17 00:39:18 UTC 2009


Fellow time-nuts,

Has anyone done a detailed compare on the difference between a Ashtech 
Z12 and Z12T?

I know the basic plot is that the external reference is inserted in 
place of the internal 20 MHz rather than being PLL locked up. So my 
questions are:

1) Is that it? Is this the only real difference?

2) How is it achieved in reality? Just how much effort would it be to 
mod a Z12 to a Z12T?

Not being able to compare I just ask the questions openly. Anybody has a 
Z12T to lend me for a peak inside?

Cheers,
Magnus




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