John Deere OMPC20964 Benutzerhandbuch
GS2 Display—StarFire iTC
OUO6050,0002248
–19–14NOV06–3/4
Satellite Tracking Chart
• SAT ID – (Satellite Identification Number)
Identification number for GPS Satellite.
• ELV – (Position Elevation) Elevation in degrees
above horizon for GPS satellite position
• AZM – (Position Azimuth) Azimuth in degrees from
true North for GPS satellite
• L1 SNR – (L1 Signal to Noise Ratio) Signal strength
for L1 GPS signal (signal to noise ratio)
• L2 SNR – (L2 Signal to Noise Ratio) Signal strength
for L2 GPS signal (signal to noise ratio)
• Status – (GPS Signal Status) Status of GPS signal
– Search – searching for satellite signal
– Track – tracking satellite signal and using it for
– Track – tracking satellite signal and using it for
positioning
– OK – tracking satellite signal and using it for
positioning
– OK SF1 – Tracking satellite signal and using it for
positioning with STARFIRE single frequency
– OK SF2 – Tracking satellite signal and using it for
positioning with STARFIRE dual frequency
Satellite Tracking Information
Satellite Tracking information is displayed at bottom of
SKY PLOT and GRAPH tabs.
SKY PLOT and GRAPH tabs.
• Satellites in Solution – number of satellites used to
compute position.
• Satellites Above Elevation Mask – total number of
GPS satellites available to receiver that are above 7
degree elevation mask.
degree elevation mask.
• Satellites Tracked – total number of GPS satellites
tracked by receiver.
• Corrections Age (sec) – age of differential correction
signal to GPS (normally less than 10 seconds)
• VDOP – Vertical Dilution of Precision
• HDOP – Horizontal Dilution of Precision
• PDOP – Positional Dilution of Precision is an
indicator of GPS satellite geometry as viewed by
receiver. A lower PDOP indicates better satellite
geometry for calculating both horizontal and vertical
position.
receiver. A lower PDOP indicates better satellite
geometry for calculating both horizontal and vertical
position.
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