[amsat-bb] Its not your Keps

John Heath g7hia at btinternet.com
Fri Oct 7 12:29:12 PDT 2011

Hi Kevin,

I doubt the problem is your keps if you have an up to date set from any of the 
sources suggested.

You might want to check the following:

Your PC clock may not have the correct time
There may be something in an initialisation routine that has set a default time 
zone, or an offset from UTC
This can be tricky with some PC's and software. You might have to set your PC 
clock to UTC.
Entering your lat/long, East or West of the Grenwich (0) meridian. There is no 
convention on this some programs want a plus sign ahead of your longitude some a 

Those are the things that have caught me out in the past.

BTW - dont expect agreement to the second between different tracking software. 
Its only a prediction and not all programs use the exact same algorithms to do 
the calcs.

Good Luck

73 John G7HIA

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