美妙旋律第二季25

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                尺寸:45X38mm MTK ROM版本芯片 GPS單模 RS232通訊方式

                GRM-4538-MTR

                Features

                Build on high performance, low-power

                            MediaTek MT3337 chipset

                Ultra high Track sensitivity: -165dBm

                Extremely fast TTFF at low signal level

                Built in high gain LNA

                The built-in super capacitor for backup ephemeris

                Low power consumption: Max 35mA@5.0V

                NMEA-0183 compliant protocol

                Operating voltage: 3.3V to 5.5V

                Operating temperature range: -40to85℃

                Patch Antenna Size:25x25x4mm

                Small form factor: 45x38x13.8mm

                Communication type: RS232

                Wire interface type: DB-9Pin , L=200cm

                RoHS compliant (Lead-free)



                Parameter  

                       Specification

                Power Supply

                Supply voltage:  3.3V~5.5V  Typical: 5.0V

                Power Consumption

                Acquisition:  35mA @VCC=VBAT=5.0V

                Tracking:  30mA @VCC=VBAT=5.0V

                Receiver Type

                Code 66 search channels, GPS&QZSS L1 1575.42MHz C/A

                           22 simultan ous tracking channels

                Sensitivity

                Tracking:   -165dBm

                Re-acquisition:   -156dBm

                Acquisition:   -146dBm

                TTFF (Autonomous)

                Cold start:  35s  typ @-130dBm

                Warm start:  30s  typ @-130dBm

                Hot start:  1s  typ @-130dBm

                Horizontal Position

                Accuracy (Autonomous)

                <2.5m CEP @-130 dBm

                Update Rate

                1Hz

                Accuracy of 1PPS Signal

                not enabled

                Acceleration Accuracy

                Without aid: 0.1m/s2

                Dynamic Performance

                Maximum altitude: 18,000m

                Maximum velocity: 515m/s

                Acceleration: 4G

                RS232 Port

                RS232 Port: RS232_TX and RS232_RXD

                Supports baud rate from 4800bps to 115200bps, 9600bps by default

                RS232 port is used for NMEA output, MTK proprietary

                           commands input.

                Temperature Range

                Normal operation: -40°C ~ +85°C

                Storage temperature: -45°C ~ +125°C

                Physical Characteristics

                Size: 45±0.50 × 38±0.50 ×13.8±0.50mm

                Connecting line specifications: DB-9Pin , L=200cm

                Weight: Approx.78g


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