Re: [time-nuts] Owner's Manual and advice for Austron 2110 Disciplined Frequency Standard

[Tom Knox]

Hi Tim;
I am a little late to this string, Did you find the information you needed? I 
do have an Operation and Service Manual in my archive. One thing I have done 
with these is up grade the LCD to a high contrast LED back lite display. I can 
send you details on how to do that. My only request is that if I loan the 
manual, you make a decent quality PDF for one of the T-Nut members to host for 
future member use.
Please contact me directly if I can be of assistance.
Cheers;
Thomas Knox
1-303-554-0307
act...@hotmail.com


From: time-nuts <time-nuts-boun...@febo.com> on behalf of Tom Leedy via 
time-nuts <time-nuts@febo.com>
Sent: Friday, March 25, 2016 8:48 PM
To: time-nuts@febo.com
Subject: [time-nuts] Owner's Manual and advice for Austron 2110 Disciplined     
Frequency Standard

Hi --

I am looking for a manual for an Austron Model 2110 Disciplined Frequency
Standard (P/N 23199611-45 S/N 8085IU).  This unit reports that it is not
warmed up even though the external temperature of the case of the  crystal
oscillator reaches ~15 C temperature rise in a few hours as  expected.  The
internal oscillator is an Austron Model 1150 (S/N 4423  with frequency outputs
of 5 and 10 MHz, P/N 25299983).  I believe that this  request has been
posted before, but a few years ago.

Does the oscillator, by not correctly reporting as being warmed up,
inhibit other functions?  The frequency output, after a few hours, gets  within 
a
few parts in 10E-8 on both 5 and 10 MHz.  So I have faith the  basic
frequency generation capability is not trashed, but I can't get many other
function to work as expected.

Any help would be greatly appreciated for either the 2110 or the 1150
oscillator.  Feel free to contact me off list.

Tom Leedy
Clarksburg, MD
leedyt (at) aol (dot) com


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Re: [time-nuts] Owner's Manual and advice for Austron 2110 Disciplined Frequency Standard

[Bob Camp]

Hi

It’s probably bringing out both sides of the varicap to accomplish the same 
sort of thing. 

Bob

> On Mar 26, 2016, at 5:22 PM, Hal Murray  wrote:
> 
>> The one I have has both EFC+ and EFC- pins.
> 
> Is that a differential input so you don't have to worry about ground offset 
> shift when the oven current changes?
> 
> 
> -- 
> These are my opinions.  I hate spam.
> 
> 
> 
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Re: [time-nuts] Owner's Manual and advice for Austron 2110 Disciplined Frequency Standard

[Poul-Henning Kamp]

In message <20160326212201.46e79406...@ip-64-139-1-69.sjc.megapath.net>, Hal Mu
rray writes:
>> The one I have has both EFC+ and EFC- pins.
>
>Is that a differential input so you don't have to worry about ground offset 
>shift when the oven current changes?

I have no idea...

It's one I bought cheap and it's not particularly good, so I have not
spent a lot of time on it.

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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Re: [time-nuts] Owner's Manual and advice for Austron 2110 Disciplined Frequency Standard

[Hal Murray]

> The one I have has both EFC+ and EFC- pins.

Is that a differential input so you don't have to worry about ground offset 
shift when the oven current changes?


-- 
These are my opinions.  I hate spam.



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Re: [time-nuts] Owner's Manual and advice for Austron 2110 Disciplined Frequency Standard

[Poul-Henning Kamp]

In message <599355eb-013e-4730-b41f-dd8606b2e...@n1k.org>, Bob Camp writes:

>The 1150 OCXO has an EFC pin on it.

The one I have has both EFC+ and EFC- pins.

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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Re: [time-nuts] Owner's Manual and advice for Austron 2110 Disciplined Frequency Standard

[Bob Camp]

Hi

The 1150 OCXO has an EFC pin on it. The output *should* tune to both sides of 
10 MHz.
Since this is an old box, the OCXO may have aged far enough to keep that from 
happening. 
If the EFC is railed, it is a good bet you need to tune the OCXO with the 
mechanical trimmer
that is behind the seal screw on the OCXO. If that trimmer is already at limit 
and you can’t get
to 10 MHz …. not a good thing.

Bob


> On Mar 25, 2016, at 10:48 PM, Tom Leedy via time-nuts  
> wrote:
> 
> Hi --
> 
> I am looking for a manual for an Austron Model 2110 Disciplined Frequency  
> Standard (P/N 23199611-45 S/N 8085IU).  This unit reports that it is not  
> warmed up even though the external temperature of the case of the  crystal 
> oscillator reaches ~15 C temperature rise in a few hours as  expected.  The 
> internal oscillator is an Austron Model 1150 (S/N 4423  with frequency 
> outputs 
> of 5 and 10 MHz, P/N 25299983).  I believe that this  request has been 
> posted before, but a few years ago.
> 
> Does the oscillator, by not correctly reporting as being warmed up,  
> inhibit other functions?  The frequency output, after a few hours, gets  
> within a 
> few parts in 10E-8 on both 5 and 10 MHz.  So I have faith the  basic 
> frequency generation capability is not trashed, but I can't get many other  
> function to work as expected.
> 
> Any help would be greatly appreciated for either the 2110 or the 1150  
> oscillator.  Feel free to contact me off list.
> 
> Tom Leedy
> Clarksburg, MD
> leedyt (at) aol (dot) com
> 
> 
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> and follow the instructions there.

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[time-nuts] Owner's Manual and advice for Austron 2110 Disciplined Frequency Standard

[Tom Leedy via time-nuts]

Hi --
 
I am looking for a manual for an Austron Model 2110 Disciplined Frequency  
Standard (P/N 23199611-45 S/N 8085IU).  This unit reports that it is not  
warmed up even though the external temperature of the case of the  crystal 
oscillator reaches ~15 C temperature rise in a few hours as  expected.  The 
internal oscillator is an Austron Model 1150 (S/N 4423  with frequency outputs 
of 5 and 10 MHz, P/N 25299983).  I believe that this  request has been 
posted before, but a few years ago.
 
Does the oscillator, by not correctly reporting as being warmed up,  
inhibit other functions?  The frequency output, after a few hours, gets  within 
a 
few parts in 10E-8 on both 5 and 10 MHz.  So I have faith the  basic 
frequency generation capability is not trashed, but I can't get many other  
function to work as expected.
 
Any help would be greatly appreciated for either the 2110 or the 1150  
oscillator.  Feel free to contact me off list.
 
Tom Leedy
Clarksburg, MD
leedyt (at) aol (dot) com
 
 
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