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Re: Time references (UT vs. GPS) Whoa, there!

----- Original Message ----- 
From: "Wayne Day" <n5wd@charter.net>
To: <nx7u@arrl.net>; <marsgal42@hotmail.com>; <amsat-bb@AMSAT.Org>
Sent: Tuesday, July 08, 2003 10:00 PM
Subject: Re: [amsat-bb] Time references (UT vs. GPS) Whoa, there!
> <snip>
> To which VE7LDH added:
> >I work with systems that are synchronized with GPS, and
> >that 13 second difference to UTC is very much part of my
> >soul nowadays.
> OK, this has been bugging me no end - I simply don't see any 
> 13-second difference between (a) my receiver hearing WWV over the 
> air, (b) an atomic clock that synchs up with WWVB every evening and 
> (c) my Garman GPS-12.  There IS NO 13 SECOND DIFFERENCE that I can 
> see!
> Now, I saw the reference to the 13 second difference on the web page 
> that Scott referenced, but I can't find it anywhere else in the 
> references I've looked at.  Is this merely another urban legend?
> Or, is my GPS unit really 13 seconds slower than it should be?
> Anyone care to duplicate or dispute my observation?
> 73 Wayne N5WD

Hi Wayne,

    Your unit is set to the GPS time scale instead of the UTC time scale.
Is there a setting or command to have it display UTC time? I had to do
this with my Z-3801a GPS receiver/timebase to display UTC time.

Tom / N7HXP
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