
NCSNAVI R120 BLUETOOTH GPS RECEIVER USER MANUAL
7
4. Technical Specification
4.1. Basic Specification
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Chipset
:
MTK MT3318
chipset
.
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Channels
:
51 parallel satellite-tracking channels.
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Frequency
:
1575.42 MHz
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Receiver
:
L1, C/A code.
4.2. Acquisition Time (refer to MTK chip specification)
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Reacquisition
:
0.1 second.
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Cold
start
:
< 36 seconds.
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Warm
start
:
< 33 seconds .
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Hot
start
:
< 1 second
4.3. Receiver Accuracy
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Normal
:
< 3 meters CEP without SA.
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Enable EGNOS or WAAS
:
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Position
:
< 2.2 meters, horizontal 95% of time
< 5 meters, Vertical 95% of time
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Velocity
:
within 0.1 meters / second
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Time
:
0.1 microsecond synchronized GPS time
4.4. Use Limitation
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Altitude
:
< 18,000 meters (60,000 feet)
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Velocity
:
< 515 meters/ second (1000Knots)
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Acceleration
:
4 G.
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Jerk
:
20 meters / second
3
, max
4.5. Power Supply
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External Voltage: 5V DC +/-5%
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Batteries
:
Main Power: Built-in rechargeable Lithium-ion for system power.
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Working voltage: 40~50mA (Normal mode).
35mA (Power Saving).
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Auto Power Saving mode.
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Circuit protection on
R120
when over-temperature condition 50
occurs.
℃