Hi
Does accuracy include temperature change over -55 to +85 C at a 1 C / minute
rate?
Is accuracy measured after a 5 minute cold start at any temperature?
Does accuracy include a contribution internal to the synthesizer (like DDS step
size)?
Is accuracy simply where we set it when we shipped
Date: Tue, 20 Apr 2010 18:59:20 -0700
From: jimlux jim...@earthlink.net
Subject: Re: [time-nuts] GPS 1 PPS accuracy limits
Do they have other requirements (Allan deviation? phase noise?)
Over what time span do they want 4E-11 accuracy? 1 second, 1000 seconds,
days?
A synthesizer locked
life speed wrote:
Time Nuts;
I have a customer request for a microwave frequency synthesizer with extreme
accuracy requirements;
4 X 10^-11, or 0.04 PPB. Obviously this is way out of quartz oscillator
territory.
Is GPS 1 pulse-per-second useable, or do they need an atomic clock?
Maybe they
...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of life speed
Sent: Tuesday, April 20, 2010 1:27 PM
To: time-nuts@febo.com
Subject: [time-nuts] GPS 1 PPS accuracy limits
Time Nuts;
I have a customer request for a microwave frequency synthesizer with extreme
accuracy requirements; 4 X 10^-11
Hi Magnus, Life speed,
what does accuracy mean? Average (rms, 1-Sigma) frequency accuracy? If yes,
over what time frame is the average?
Or is this the peak to peak allowable deviation? Over what temperature
range, and after how long of a warmup?
To give you an example, a typical Fury
life speed wrote:
Time Nuts;
I have a customer request for a microwave frequency synthesizer with
extreme accuracy requirements; 4 X 10^-11, or 0.04 PPB. Obviously
this is way out of quartz oscillator territory. Is GPS 1
pulse-per-second useable, or do they need an atomic clock? Maybe
they
