PSN-L Email List Message

Subject: Placer 400 problems
From: Phil Giannini pgiannini@........
Date: Wed, 30 Jun 1999 08:07:13 -0700


Hi John,
    I bought a Placer 400 some time back with plans to use it with my
remote gear for both location accuracy and time lock. I used it once on
a trip to the Geysers just for a location fix when I first got it to try
it out and it worked great. I have plans to tie it into my recorder for
time locking, but I've been busy and haven't gotten back to that
project.
    I sort of remember that as long as the back up battery (the 9v one)
is good it is suppose to fire right up and remember where it was last
and the time should be fairly close so that it will update quickly. I
don't have the spec sheet handy here at work, but I am not sure if it
will be totally happy with that 10 volts for the main power, it might
really want 12. The other thing is the power from that wall
transformer/power supply clean? It might have some hum on it and that
might be what's corrupting your data.
    The only problem I think I may have with mine is with the one second
pulse on pin 9 of the connector plug. Maybe you can answer a question
for me? That being, what does your 1 second pulse look like on that pin.
Mine is a very short very low level differentiated pulse or spike like
looking thing, not at all looking like what I would have expected there.
I don't know if mine is defective in that area or if that is what it is
suppose to look like. Like I said I never got much of a chance to play
with it but, I did open up the box looking around for that pulse and
remember that there wasn't much inside. It's been a long time, but I
can't say that I remember seeing any little clock battery in there. Wish
I could be more help.


Regards, Phil


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Larry Cochrane <cochrane@..............>