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尺寸:45X38mm MTK ROM版本芯片 GPS单模 RS232通讯方式

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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