[time-nuts] Time nut newbie

[Bob Camp]

Hi

If you take a look down in the fine print on the OCXO spec, the aging rate
is 100 ppb / year in the first year. If you are off by 0.1 ppm (100 ppb)
your clock will gain a second in less than 12 days.

Bob

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Tim Bastian
Sent: Tuesday, April 30, 2013 1:50 PM
To: time-nuts at febo.com
Subject: [time-nuts] Time nut newbie

Hi all,

I'm a time nut newbie. My obsession started with the search for an accurate
chronometer to carry on my boat for celestial navigation. Yes there still
are a few of us left that practice the art.

My current project is a quartz chronometer using a DS32Khz tcxo oscillator
and two 74HC4060s (+ or- 10 seconds / year).  

For my next project I'm looking at an Abricon Part Number AOCJY2-10.000MHZ 
ocxo 5 ppb running through a pic and using the algorithm posted on
http://www.romanblack.com/one_sec.htm. I'm shooting for + or - 1 seconds /
year.  

 Is there an archive of old posts that might be helpful in answering some of
my questions and for getting ideas. 

Thanks,

  Tim KK4FQB

Sent from my Motorola ATRIX™ 4G on AT&T
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