Chip Characteristics | |
Model number | QFL4GZ5F |
Chip | AT6558F-5N32 |
Frequency | BDS/GPS/1.5611-1.57542GHz |
C/ A code | 1 . 023MHz code stream |
Protocol | NMEA 0183 |
Baud rates | 4800, 19200, 38400, 57600, 115200bps (default 9600 baud rate) |
Channel | 56 channels |
SWR | S11 ≤ 1.3 |
SWR | S22≤1.3 |
Log Mag | S21≥ 20.0dB |
Smith | S11 :50Ω±5% |
Sensitivity | Tracking:-162dBm Capture:-148dBm |
Cold Start | Average 35 seconds |
Cold Start Sensitivity | -148 dBm |
Warm start | Average 10 seconds |
Hot start | Average 1 sec |
Hot start sensitivity | -156 dBm |
AGPS [Network Aided Ephemeris Data] | 3 s [ average ] |
Positioning accuracy | < 5m |
(CEP, 50%, static at 24 hours, signal strength -130 dBm, approx. 6 available satellites) | |
Timing precision | 30 ns |
Direction | < 0 . 5Degrees |
Reference coordinate system | W G S - 84 |
Rate | < 0 . 1 m / s |
Maximum height | 50,000m |
Standard Clock Pulsation | 0 . 2 5 H z ~ 1 K H z |
Maximum speed | 515 m/s |
Maximum acceleration | <= 4G |
Update frequency | 1 - 10 Hz (default 1 Hz) |
Port interface | U A RT: 232/TTL [ default ] |
Output statements | NMEA 0183 V3.0 (GGA, GSA, GSV, RMC, VTG, GLL) protocol data |
Physical properties | |
Dimensions | 28.0mm * 28.0mm * 8.6mm |
Interface | 4pin connector default (VCC/TX/RX/GND) (6pin compatible with PPS output, is EN capable) |
Power supply | |
Input Voltage | Wide voltage range : Mains supply + 3 . 3 V ~ + 5.5 V |
Operating current | 30Ma |
Standby voltage | 1.8~3.6VDC |
Working environment | |
Humidity range | 5% to 95% non-condensing |
Operating temperature | -40 to +100 ºC |
Storage temperature | -55 to +100 ºC |
1.Industry standard 25*25*4mm high sensitivity GPS antenna 2.Uses 0.5PPM high precision TCXO 3.Built-in RTC crystal and Piffa capacitor for faster hot start 4.Built in LNA, low noise signal amplifier 5.Compatible with AT6558F/R chip, built-in FLASH, supports warm start 6.1-10Hz positioning update rate 7.Supports A-GPS services such as Assist Now Online and Assist Now Offline 8.Positioning mode: GPS+BeiDouGPS+ BeiDou (default), GPS+BeiDou+ GLONASS(optional) |
GPS for PDA, Pocket PCs and other portable devices |
Track and trace products such as personal positioning and car positioning |
Mapping products such as area measurement and distance measurement, mu meters |
Law enforcement recorder, car recorder, advertising machine, external antenna, etc |
Track recording and GPS/Beidou data point calibration products. |