Leadtek Research Inc LR9821 사용자 설명서
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1 Main Features
12 Channels “All-In-View” Tracking
Position accuracy of 10 meters 2D RMS
Cold/Warm/Hot Start Time: 45/38/8 Seconds
Reacquisition Time: 0.1 seconds
RF connector for external GPS antenna
Supports Standard NMEA-0183
Supports Trickle Power mode Power Saving
Compatible with Bluetooth devices with Serial Port Profile (SPP)
Superior Sensitivity for Urban Canyon and Foliage Environment
Small, sleek, and lightweight design easily fits in your hand
Two LEDs indicating Bluetooth and GPS activity
Lithium-ion battery lasting full working day typical use
On/off push button
Dimensions: 1.81” x 3.38” x 0.75” / 46mm x 86mm x 19mm
Position accuracy of 10 meters 2D RMS
Cold/Warm/Hot Start Time: 45/38/8 Seconds
Reacquisition Time: 0.1 seconds
RF connector for external GPS antenna
Supports Standard NMEA-0183
Supports Trickle Power mode Power Saving
Compatible with Bluetooth devices with Serial Port Profile (SPP)
Superior Sensitivity for Urban Canyon and Foliage Environment
Small, sleek, and lightweight design easily fits in your hand
Two LEDs indicating Bluetooth and GPS activity
Lithium-ion battery lasting full working day typical use
On/off push button
Dimensions: 1.81” x 3.38” x 0.75” / 46mm x 86mm x 19mm
2 Specifications
2.1 Electrical
Characteristics
General
Chipset SiRF Star IIe/LP
Frequency L1, 1575.42 MHz
C/A code 1.023 MHz chip rate
Channels 12 channel all-in-view tracking
Antenna Type Built-in Ceramic patch antenna
C/A code 1.023 MHz chip rate
Channels 12 channel all-in-view tracking
Antenna Type Built-in Ceramic patch antenna
External antenna optional
Accuracy
Position 10 meters, 2D RMS
Velocity 0.1 meters/second
Time 1 microsecond synchronized to GPS time
Datum
Default WGS-84
Acquisition Rate (Open sky, stationary)
Reacquisition 0.1 sec., average
Snap start 2 sec., average
Hot start 8 sec., average
Warm start 38 sec., average
Cold start 45 sec., average
Hot start 8 sec., average
Warm start 38 sec., average
Cold start 45 sec., average