[time-nuts] Fw: Austron 2100F

2008-06-12 Thread Stanley Reynolds


If I divide one of the phase corrected outputs to PPS and use it instead of a 
gps receiver to discipline the input reference crystal oscillator would this 
system have any advantage over the corrected outputs? I did find a web 
reference where NASA was using a 2100 receiver to discipline a Austron 2010B 
reference as part of a triple redundant clock (GPS, Loran-C, and Cesium beam).
 
http://tycho.usno.navy.mil/ptti/1993/Vol%2025_02.pdf
Stanley
 
 


 
- Original Message 
From: Dan Rae <[EMAIL PROTECTED]>
To: Stanley Reynolds <[EMAIL PROTECTED]>
Sent: Wednesday, June 11, 2008 12:23:35 PM
Subject: Re: [time-nuts] Austron 2100F

Stanley Reynolds wrote:
>
> Yes, would like to know about the phase corrected outputs, any specs, 
> are they close to the accuracy of the Loran signal it's self ?
Nothing claimed in the specs. It just says: "Square wave output, will 
drive 1 standard TTL load" for both 1 and 10 MHz.  Long term, I'm 
guessing it approaches that of the Loran signal.

It looks like the no suffix version is a bit different from the others.

Dan

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[time-nuts] Fw: Austron 2100F

2008-06-11 Thread Stanley Reynolds



- Forwarded Message 
From: Stanley Reynolds <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Sent: Wednesday, June 11, 2008 12:04:26 PM
Subject: Re: [time-nuts] Austron 2100F





- Original Message 
From: Dan Rae <[EMAIL PROTECTED]>
To: Discussion of precise time and frequency measurement 
Sent: Wednesday, June 11, 2008 11:29:35 AM
Subject: Re: [time-nuts] Austron 2100F

Stanley, I have the manual for the 2100 (with no suffix), if there is 
anything specific from that you need. 
 
Yes, would like to know about the phase corrected outputs, any specs, are they 
close to the accuracy of the Loran signal it's self ?
 
 
> the chart output looks like it outputs a voltage between 0-15 volts at the 
> start with it tending toward the millivolts volts as it continues
In my 2100 the "Phase Record" output at the rear outputs from 0 to 1 
Volt representing an accumulated phase shift of 1 or 10 µsecs at full 
scale.  This sounds unlike yours.
 
Not sure yet as it is stable at .5xx volts now it maybe the same as yours but 
mine has a problem ? My location Birmingham Al is not close to any station and 
I may have interference in my neighborhood. I 'm using the 7980 chain now but 
have received the great lakes chain before. The Grangeville LA station is the 
strongest here.
 
It may help to connect a scope and look at my signals.
 
Stanley


  
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