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
Acquisition
-147dBm
-146dBm
Hot start
-155dBm
-154dBm
Reacquisition
-158dBm
-157dBm
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
RF Specifications
Input VSWR
≤1.5
Antenna gain
15～30dB
Input impedance
50Ω
RoHS
Accord
Hardware Interface
BD9 male connector
PPS
SMA female type
Antenna
Power Port
USB type
SD card slot
For external SD card
Reset PIN
For hardware reset
Package List
GNSS antenna (SMA type)
Serial cable
Dual DB9 female cable
Built-in module
UM220-IV M/N optional
USB cable
USB - mini USB
