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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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