[time-nuts] GPS question

Joseph Gray jgray at zianet.com
Fri Apr 6 14:06:16 EDT 2007

I just found three programs that may be of interest to others.

One is GPS Babel.

The second is a virtual serial port driver that converts Garmin data to 
NMEA. It is called Spanner and is from Garmin.

The third is another virtual serial port driver that has additional 
functionallity. It is called GPS Gate. It is not free, but is inexpensive.

I haven't tried these programs yet, but later tonight will give GPS Babel 
and Spanner a try.

----- Original Message ----- 
From: "Joseph Gray" <jgray at zianet.com>
To: <bg at lysator.liu.se>; "Discussion of precise time and frequency 
measurement" <time-nuts at febo.com>
Sent: Friday, April 06, 2007 8:47 AM
Subject: Re: [time-nuts] GPS question

>> Try logging the positions to a PDA or normal computer. Look at the 
>> values.
>> How much do they wander? Compare with the positions from the Oncore in 
>> the
>> GPSDO. This will give you a much better understanding or "feeling" of the
>> quality of the solutions.
> The Garmin has a USB port, but no serial. I just got this thing, so I
> haven't yet figured out how to log the data to a PC. I'll have to do more
> research on this.
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