Re: [time-nuts] Jupiter GPS 10 KHz pin

2008-03-20 Thread David Carr Junk
Tom and Bruce,

Thanks for probing out this line for me.  You two are indeed correct, as I
found a nice looking 10 kHz signal on the pin you identified.
My GPS is a TravRoute CoPilot serial "hockey puck" which happens to have a
Jupiter chipset (FW 1.83 1997).  I thought that this GPS (my first)
was about done, but I think its found some new life...

Thanks,
David Carr

On Fri, 21 Mar 2008 00:22:23 +0100, ScopeFreak <[EMAIL PROTECTED]>
wrote:
> David,
> 
> I can confirm. I measured it on a TU30-D140 and its on the same pin.
> Bruce's graphic is rotated 180' compared to my ascii graphic.
> 
> Tom
> 
>>
>> David
>>
>> On the TU30-D165 version of the Jupiter the relevant pin appears to
>> be the 13th pin up from the bottom on the LHS of the large chip in
>> the attached drawing.
>>
>> Bruce
> 
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Re: [time-nuts] Jupiter GPS 10 KHz pin

2008-03-20 Thread ScopeFreak
David,

I can confirm. I measured it on a TU30-D140 and its on the same pin.
Bruce's graphic is rotated 180' compared to my ascii graphic.

Tom

>
> David
>
> On the TU30-D165 version of the Jupiter the relevant pin appears to
> be the 13th pin up from the bottom on the LHS of the large chip in
> the attached drawing.
>
> Bruce

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Re: [time-nuts] Jupiter GPS 10 KHz pin

2008-03-20 Thread Bruce Griffiths

David Carr wrote:
I have a Jupiter based receiver that is not one of the standard 
modules.  I'd like to see if I can get a 10KHz output from it, but I 
don't know which pin of the 144 possible options to look at.


Would someone with a Jupiter board trace the connection from the 10 KHz 
output back to the pin on the chip it originates from?  That would be a 
huge help.  I suspect that you'll find it ends up on the chip labeled 
11577-11.


Thanks for your time,
David Carr

  

David

On the TU30-D165 version of the Jupiter the relevant pin appears to be 
the 13th pin up from the bottom on the LHS of the large chip in the 
attached drawing.


Bruce
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Re: [time-nuts] Jupiter GPS 10 KHz pin

2008-03-20 Thread ScopeFreak
David,

If I hold my Jupiter in the position where the connector is on the 
left and the 11577-11 is facing me then the 10kHz is on pin 20 of the 
connector (top right) and this pin is connected to pin 13 counting 
from the top right-hand-side of the IC.

In some ugly ascii graphics:

--
| Jupiter board
| o o=Pin20 - top
| o o   | o | 1
| o o   |   | 2
| o o   |   |
| o o   |   11577-11| 13=10kHz
|

I can only hope this is readable in your mail program ;-)

Let me know if this comes out OK. If not I will do some 
photoshopping :-)

Tom

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Re: [time-nuts] Jupiter GPS 10 KHz pin

2008-03-20 Thread Scott Newell
At 08:33 AM 3/20/2008 , David Carr wrote:
>I have a Jupiter based receiver that is not one of the standard 
>modules.  I'd like to see if I can get a 10KHz output from it, but I 
>don't know which pin of the 144 possible options to look at.
>
>Would someone with a Jupiter board trace the connection from the 10 KHz 
>output back to the pin on the chip it originates from?  That would be a 
>huge help.  I suspect that you'll find it ends up on the chip labeled 
>11577-11.

Was this the same chip used in the Delorme Earthmate receiver?  If so, I
seem to recall adding the 1Hz and 10kHz output to mine.  Maybe I can find
it and ID the pin for you.


-- 
newell  N5TNL



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Re: [time-nuts] Jupiter GPS 10 KHz pin

2008-03-20 Thread David Carr Junk
Tom,

Thanks for your reply.  I looked through the documents on that page but
unfortunately I don't think any quite address my question.
I think they'd have to have a schematic of the board itself to do that.

If someone would just stick a multimeter probe on the 10 KHz connection of
their module and then trace that signal back to the IC, I would
really appreciate it.

Thanks,
David Carr

On Thu, 20 Mar 2008 17:48:07 +0100, ScopeFreak <[EMAIL PROTECTED]>
wrote:
> David,
> 
> On the site http://gpskit.nl/, in the downloads directory, you can
> find a lot of info on the Rockwell Jupiter board. I know the info you
> are looking for is in there somewhere.
> 
> Best regards,
> Tom
> 
> On Thursday 20 March 2008 14:33, David Carr wrote:
>> I have a Jupiter based receiver that is not one of the standard
>> modules.  I'd like to see if I can get a 10KHz output from it, but
>> I don't know which pin of the 144 possible options to look at.
>>
>> Would someone with a Jupiter board trace the connection from the 10
>> KHz output back to the pin on the chip it originates from?  That
>> would be a huge help.  I suspect that you'll find it ends up on the
>> chip labeled 11577-11.
>>
>> Thanks for your time,
>> David Carr
>>
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Re: [time-nuts] Jupiter GPS 10 KHz pin

2008-03-20 Thread ScopeFreak
David,

On the site http://gpskit.nl/, in the downloads directory, you can 
find a lot of info on the Rockwell Jupiter board. I know the info you 
are looking for is in there somewhere.

Best regards,
Tom

On Thursday 20 March 2008 14:33, David Carr wrote:
> I have a Jupiter based receiver that is not one of the standard
> modules.  I'd like to see if I can get a 10KHz output from it, but
> I don't know which pin of the 144 possible options to look at.
>
> Would someone with a Jupiter board trace the connection from the 10
> KHz output back to the pin on the chip it originates from?  That
> would be a huge help.  I suspect that you'll find it ends up on the
> chip labeled 11577-11.
>
> Thanks for your time,
> David Carr
>
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[time-nuts] Jupiter GPS 10 KHz pin

2008-03-20 Thread David Carr
I have a Jupiter based receiver that is not one of the standard 
modules.  I'd like to see if I can get a 10KHz output from it, but I 
don't know which pin of the 144 possible options to look at.

Would someone with a Jupiter board trace the connection from the 10 KHz 
output back to the pin on the chip it originates from?  That would be a 
huge help.  I suspect that you'll find it ends up on the chip labeled 
11577-11.

Thanks for your time,
David Carr

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