Garmin GPS 18 USB Deluxe Portable Navigator 010-00321-00 User Manual
Product codes
010-00321-00
GPS 18 Technical Specifications (190-00307-00)
Rev. D
Page 6
1.5.2.4
GPS Receiver Sensitivity
-165 dBW minimum
1.5.3
Environmental Characteristics
• Operating Temperature: -30°C to +80°C
• Storage Temperature:
• Storage Temperature:
-40°C to +90°C
1.5.4
GPS Performance
1.5.4.1
Receiver
WAAS enabled; 12 parallel channel GPS receiver continuously tracks and uses up to 12 satellites (up to 11
with Measurement Pulse Output active) to compute and update your position.
with Measurement Pulse Output active) to compute and update your position.
1.5.4.2
Acquisition Times
• Reacquisition: Less than 2 seconds
• Warm:
• Warm:
Approx. 15 seconds (all data known)
• Cold:
Approx. 45 seconds (initial position, time, and almanac known; ephemeris unknown)
• AutoLocate
TM
: 5 minutes (almanac known; initial position and time unknown)
• SkySearch:
5 minutes (no data known)
1.5.4.3
Update Rate
• GPS 18 USB, PC, and LVC: 1 record per second
• GPS 18-5Hz: 5 records per second
• GPS 18-5Hz: 5 records per second
1.5.4.4
Accuracy
• GPS Standard Positioning Service (SPS)
Position: < 15 meters, 95% typical
Velocity: 0.1 knot RMS steady state
Velocity: 0.1 knot RMS steady state
• WAAS
Position: < 3 meters, 95% typical
Velocity: 0.1 knot RMS steady state
Velocity: 0.1 knot RMS steady state
• Measurement Pulse Output Time: ±1 microsecond at rising edge of the pulse
• Dynamics: 999 knots velocity (only limited at altitude greater than 60,000 feet), 6g dynamics