Frequency | BDS B1：1561.098MHZ GPS L1 ：1575.42MHZ GLO L1：1602.5625MHZ | |||
TTFF | Cold Start：28s | Reacquisition： 1s | ||
Hot Start：1s | AGNSS：4s | |||
Positioning accuracy | 2.0m CEP (dual-system horizontal, open sky) | |||
3.5m CEP (dual-system vertical, open sky) | ||||
Velocity accuracy (RMS) | 0.1m/s (dual-system，Open sky) | Data output | NMEA 0183，Unicore Protocol | |
Sensitivity (UM220-IV M) |
| GN | BD | GPS |
Tracking | -161dBm | -161dBm | -161dBm | |
Acquisition | -147dBm | -146dBm | -147dBm | |
Hot start | -155dBm | -154dBm | -155dBm | |
Reacquisition | -158dBm | -157dBm | -158dBm | |
Dimension | 10.1*9.7*2.2mm (UM220-IV M) | UART | LVTTL |
16.0*12.2*2.4mm (UM220-IV N) | 4800～115200 bps | ||
Voltage | +2.8~3.6 VDC | Temperature | -40℃ ~ +85℃ (Operating) |
Power Consumption | 63mW | -40℃ ~ +85℃ (Operating) |
RF Specifications
Input VSWR | ≤1.5 | Antenna gain | 15～30dB |
Input impedance | 50Ω | RoHS | Accord |
Hardware Interface
UART | BD9 male connector | PPS | SMA female type |
Antenna | SMA female type | Power Port | USB type |
SD card slot | For external SD card | Reset PIN | For hardware reset |
Package List
Antenna | GNSS antenna (SMA type) | Serial cable | Dual DB9 female cable |
Built-in module | UM220-IV M/N optional | USB cable | USB - mini USB |
