Based on MediaTek Single Chip Architecture (MT3329).
ARM7 based application processor
High sensitivity: -165dBm tracking
Channels: 66 acquisition, 22 simultaneous tracking
Low power consumption: 40mA @ acquisition, 30mA @ tracking
Cold/Warm/Hot start time: <35/<34/<1 seconds
Maximum update rate up to 10Hz
1PPS GPS time reference
GPS data interface: TTL level serial port
Support NMEA 0183 standard V3.01 and backward compliance
Support SBAS – WAAS, EGNOS, GAGAN and MSAS
Dimension：11.5mm x 13mm x 2.0mm

Module Characteristics

General
Chipset	MTK MT3329
Frequency	L1, 1575.42MHz
C/A Code	1.023 MHz
Channels	66 channels
SBAS	WAAS, EGNOS, GAGAN,MSAS Supported
Datum	WGS84(Default), Tokyo-M, Tokyo-A, User Define
CPU	ARM7EJ-S
Dimensions
Length/Width/Height	11.5*13*2.0 mm
Weight	2 g
Performance Characteristics
Position Accuracy	Without aid：3.0m 2D-RMS
	< 3m CEP (50%) without SA (horizontal)
	DGPS (RTCM, SBAS (WAAS, EGNOS, MSAS))：2.5m
Velocity Accuracy	Without aid：0.1 m/s
	DGPS (RTCM, SBAS (WAAS, EGNOS, MSAS))：0.05m/s
Acceleration Accuracy	Without aid：0.1 m/s²
	DGPS (RTCM, SBAS (WAAS, EGNOS, MSAS))：0.05m/s²
Timing Accuracy	100 ns RMS
Sensitivity	Acquisition：-148dBm (Cold Start)
	Reacquisition：-157dBm
	Tracking：-165dBm
Maximum Update Rate	Up to 10Hz(Default: 1Hz)
Acquisition (Open sky, stationary)
Reacquisition Time	Less than 1 second
Hot start	1.0s (Typical)
Warm start	34s (Typical)
Cold start	35s (Typical)
Dynamic
Altitude	Maximum 18,000m
Velocity	Maximum 515m/s
Acceleration	Maximum 4G
Power
Input Voltage	DC 3.3V Typical
Power Consumption @ 3.3V	Acquisition：40mA Typical
	Tracking：30mA Typical
I/O
Signal Output	RS232, 8 data bits, no parity, 1 stop bit
Available Baud Rates	4800/9600/38400/57600/115200 bps(Default：9600)
Protocols	NMEA 0183 v3.01 (GGA,GSA,GSV,RMC,VTG) RTCM MTK NMEA Command Network Assistance Messages
Data output Interface
Protocol messages	9600 bps/8/N/1 (Default)
Output format	GGA(1sec),GSA(1sec),RMC(1sec),VTG(1sec), GSV(5sec) (Default)
Environment
Operating Temperature	-30 ℃ to 85 ℃
Storage Temperature	-40 ℃ to 125 ℃
Operating Humidity	5% to 95% (no condensing)