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CF Card GPS and iPAQ Expansion Pack GPS

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Pocket PC Comm Port Testing Software - Free
GPS units that connect to the Pocket PC through the connector on the bottom of the Pocket PC are usually available to Pocket PC software programs on comm port 1.  CF card and BlueTooth GPS units are usually not accessible on comm port 1 and may be found on any comm port from 2 through 9.  Crux_View.exe is a simple Pocket PC utility that can be used to figure out (using trial and error) which comm port is used to connect to the GPS.  Crux_View can also be used to enable or disable WAAS functionality.  To turn on WAAS functionality, copy the Crux_View.exe utility to your PC by right clicking on it and selecting "Save Target As" from the pop-up menu.  Then use Microsoft ActiveSync to copy it to your Pocket PC.  I recommend that you copy it to the Windows/Start Menu directory.  Run it and use trial and error to find the comm port used by the GPS.  To enable WAAS go to the SBAS tab and set the "SBAS Channel" to "AUTO" and press the "Apply" button.

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CFGPS Transplant SiRF III CF Card GPS
WAAS compatible, Great for use with many Pocket PCs to create a simple, low cost soaring flight computer system.  For details, see the PDA/GPS Systems page.  Works great with the optional GPA-18 External Antenna.  The external antenna is not required in a glider but is useful in a car.

The SiRF III CF GPS Receiver provides a host of features that make it easy for integration and use.  It uses 20 parallel satellite-tracking channels for fast acquisition and reacquisition. It plugs into a Type I CF card slot which is suitable for use with a PDA, Hand Held PC or PC device and uses a Star III/LP low power consumption chipset.

SiRF III CF GPS Manual.pdf

Tracks up to 20 satellites
Receiver: L1, C/A code
Waterproof : IPX5
Max Update rate: 1 HZ
Antenna Type: Built in Active Antenna
Minimum signal tracked: -159dBm
Dimension: 93.5 * 43 * 11 mm
Weight : < 34g
LED function: Power On/Off and Navigation Update Indication
Operation Temperature: -100C to +700C
Store Temperature: -450C to +850C
Operation Humidity: 5% to 95% No condensing.
Power consumption: <80mA at 3.3V+/-10% input

Position Accuracy
Non DGPS (Differential GPS):
Position: 5-25 m CEP without SA
Velocity: 0.1 m/sec, without SA
Time: 1 usec sync GPS Time

Position : < 2.2 m, horizontal 95% of time
<5 m, vertical 95% of time

Acquisition Time
Reacquisition: 0.1sec averaged
Hot start: 8 sec averaged
Warm start: 38 sec averaged
Cold start; 42 sec averaged

NMEA output protocol: V.2.2
Baud rate: 4800 bps
Data bit: 8
Parity: N
Stop bit: 1
Baud rate: 9600,19200,38400 bps
Format: GLL,VTG, ZDA,or SiRF binary
H/W: Compact Flash - CF type I
S/W: Emulated COM Port 1-8

$89 Not


Cumulus Soaring, Inc.
Paul E. Remde

8661 Connelly Place
Savage, Minnesota 55378

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