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What
is GPS ??
A few "minutes" and you are an "expert" on GPS!
http://www.trimble.com/gps/index.html
http://www.garmin.com/aboutGPS/
http://www.thalesnavigation.com/en/products/aboutgps/
http://www.hr-tews.de/GPS/waas_egnos_msas.htm
http://www.gpsy.com/gpsinfo/
http://joe.mehaffey.com/
DGPS,
WAAS,GALILEO,GLONASS,EGNOSS,MSAS
-Buy
a gps unit, handheld or OEM version.
See
how much OEM receivers there are offered.
We need 12V DC power supply
12 channels (satellites)
DGPS, WAAS,GALILEO,GLONASS ????
Why is bluemountain using the jupiter ?
Rockwell
Jupiter OEM Receiver
Garmins
25LP OEM Receiver
Compare
the Garmin 25LP and the Rockwell Jupiter
Sam's GPS Raw Data Pages
© Conclusion :There is no clear overall
winner. The 25LP scores slightly better in the Urban Canyon/ Foliage
Test, where the Jupiter scores better under less benign multipath
conditions. In my opinion the behavior of the 25LP is better predictable
because it delivers the raw data as they were measured (non-smoothed).
Although the smoothing process of the Jupiter is very effective
nearly all the time, once it goes wrong, it goes wrong bad and unpredictable.
Your own application will be decisive in your choice, prices are
nearly identical.
Sam's GPS Raw Data Pages
©
Jupiter
78 % of the time it was possible to calculate a position with a
5 m error confidence.
Garmin GPS25
82.6% of the time it
was possible to calculate a position with a 5 m error confidence.
So we go for the
GPS25
SPECIFICATION
DOWNLOAD (148K)
GPS25-HVS Accepts power from unregulated
high voltage power supplies between 6 and 40 VDC. Asynchronous serial
data interfaces via 2 serial ports with true RS-232 voltage level
outputs. All serial inputs on all versions are compatible with either
true RS-232 or TTL/CMOS voltage levels. Port 1 uses NMEA 0183 data
format. Port 2 transmits binary position and raw measurement data
and receives RTCM SC-104 differential corrections data, message
types.
We already dug in the antenna
in our composite skin of our airplane, so we just need a receiver.
GPS 25 HVS (010-00124-03)
(GA27C Antenna (010-10052-05)
(Power/Data Cable (325-00026-00)
OOPS !! You certainly need this power data
cable, the connectors are so fucking small, you nust have special
tools !!
http://www.garmin.com/oem/index.html
   
All items above include the antenna in the receiver.
Tip : Buy your GPS
at marine stores or agricultural stores. Get the hell out of every
thing which is aircraft related!!!
We bought nothing in Europe, they ripe you of in this
continent.
It's much cheaper to fly the stuff in from abroad.
We did very good business with Prairie
Geomatics Ltd
Hook up your GPS, or do you have to make some home-brew
cables.
http://pfranc.com/projects/g45contr/assemb.htm
http://home.planet.nl/~smeet030/images/schematics/LaptopCombi.PDF
The power supply can be done by a 6V DC - 40V DC for
the GPS25 HVS version
So we provide power by the on board DC power bus.
For backup and testing we use a 9V battery.
Watch out you can fry your GPS If
you haven't the HVS version !!!
If you need 5VDC, your ps2 can provide
the power.
You can use your dead mouse for this connector
May be this is helping you more, you can by the cheaper version
GPS25.
We found this too late, we already ordered the stuff!!
Everything is ready.
The GPS receiver plugged in software on the PC to show the RAW GPS
info.
Testing work is done. This will be on this page asap.
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