The accuracy of Unicore GNSS receivers ranges all the way from meter, though sub-meter and centimeter, down to the millimeter level.

Using our own unique technology Unicore has successfully developed and fielded series of multi-system, multi-frequency, high-performance System on a Chip (SoC), and a range of high-precision, board-level GNSS receivers and navigation/timing modules.

Applications include Continuously Operating Reference System (CORS) reference stations, survey & mapping, precision agriculture, positioning & heading, vehicle monitoring, autonomous vehicle navigation, and precision timing – along with a number of other

Unicore is a one-stop provider of GNSS SoC chips and GNSS receivers, with extensive experience in the design, verification, development, implementation and production of highly integrated ICs, along with multi-system high-performance GNSS baseband algorit

Unicore Communications, Inc. is a technology company focused on the design & development of highly integrated ICs, algorithms and GNSS receivers.

Home > Support > Selection Guide

HIGH PRECISION SELECTION GUIDE

  UB4B0 
GNSS High Precision Board
UB4B0M 
GPS / BDS / GLONASS / Galileo
All Constellation All-Frequency High Precision Board
UB482 
GPS / BDS / GLONASS / Galileo
Multi-frequency High-precision RTK and Heading Board
UM4B0 
GPS / BDS / GLONASS / Galileo
Multi-freqency High precision RTK module
UM482
GPS / BDS / GLONASS / Galileo
Multi-frequency High-precision RTK and Heading Module
  multi-frequency classic size
GNSS board
Imagine better performance
All-constellation,
multi-frequency
compact size GNSS
board with an integrated
inertial navigation
Exceptional performance
meets great price
Dual-antenna,
all-constellation,
multi-frequency,
compact GNSS positioning
and heading board with an
integrated inertial navigation
Complete and reliable
heading solution
Ultra-small, all-constellation,
multi-frequency GNSS
module with an integrated
inertial navigation
Great performance comes in
different sizes
Dual-antenna, ultra-small,
all-constellation,
multi-frequency,
compact GNSS positioning
and heading module with
an integrated inertial
navigation
Smallest heading solution
Dimension Weight 100×60×11.4 mm
45g 
46×71×11.5 mm
45g 
46×71×9 mm
21g 
30×40×4mm  
8.8 g 
30×40×4mm
8.8 g
Single Point
(RMS)
Hor:1.5 m
Ver:2.5 m
Hor:1.5 m
Ver:2.5 m
Hor:1.5 m
Ver:2.5 m
Hor:1.5 m
Ver:2.5 m
Hor:1.5 m
Ver:2.5 m
DGPS
(RMS)
Hor:0.4 m
Ver:0.8 m
Hor:0.4 m
Ver:0.8 m
Hor:0.4 m
Ver:0.8 m
Hor:0.4 m
Ver:0.8 m
Hor:0.4 m
Ver:0.8 m
RTK
(RMS)
Hor :1 cm + 1 ppm
Ver :1.5 cm + 1 ppm 
Hor :1 cm + 1 ppm
Ver :1.5 cm + 1 ppm 
Hor :1 cm + 1 ppm
Ver :1.5 cm + 1 ppm 
Hor :1 cm + 1 ppm
Ver :1.5 cm + 1 ppm
Hor :1 cm + 1 ppm
Ver :1.5 cm + 1 ppm 
Heading
(RMS)
 -  -  0.1° / 1 m
baseline
 0.1° / 1 m
baseline
Frequency GPS:L1 L2 L5
BDS:B1 B2 B3
GLONASS:L1 L2
Galileo:E1 E5b E5a
QZSS: L1 L2 L5
GPS:L1 L2 L5
BDS:B1 B2 B3
GLONASS:L1 L2
Galileo:E1 E5b E5a 
QZSS: L1 L2 L5
GPS:L1 L2  
BDS:B1 B2 
GLONASS:L1 L2
Galileo:E1 E5b
QZSS: L1 L2
GPS:L1 L2 L5
BDS:B1 B2 B3
GLONASS:L1 L2
Galileo:E1 E5b E5a 
QZSS: L1 L2 L5
GPS:L1 L2     
BDS:B1 B2
GLONASS:L1 L2
Galileo:E1 E5b 
QZSS: L1 L2 
IMU ●  ●  ● 
Dual
Antenna
○  ○  ○ 
RTK/Heading
Initialization
Time (s)
< 5 < 5 < 5 < 5 < 5
Cold Start (s) 40 25 25 25 25
Data Rate(Hz) 20 20 20 20 20
Output Latency (ms) <30 <20 <20 <20 <20
UART 1 x RS -232
2 x LVTTL
3 x LVTTL 3 x LVTTL 3 x LVTTL 3 x LVTTL
LAN
(10/100M)
1 - 1 - -
1PPS 2 1 1 1 1
External Clock 1 - - - -
●:Dual antenna input;○:Single antenna input; — N/A

STANDARD PRECISION SELECTION GUIDE


GNSS SOC GNSS MODULES

UC6226NAS UC6226NIS UC6226NIR UC6226CI UM220-IV NV-GB UM220-IV NV-GL UM220-IV NL-GB UM220-INS NV UM220-INS NF UM220-IV M0
Industry grade        
Automotive grade
Industry grade
           
Dimension 5.0x5.0mm 5.0x5.0mm 5.0x5.0mm 1.73x2.87mm 16x12mm 16x12mm 16x12mm 16x12mm 16x12mm 10.1x 9.7mm
GPS
BDS  
GLONASS            
QZSS        
1.2V~1.98V                  
2.8V~3.6V            
1.7V~3.6V              
UART1
UART2    
Antenna detect  
Over current protection            
Antenna Supply        
Built-in flash    
Data update 5Hz(◊) 5Hz(◊) 5Hz(◊) 5Hz(◊) 10Hz(◊) 10Hz(◊) 1Hz 10Hz(◊) 10Hz(◊) 1Hz
DR                
AGNSS
DGNSS          
●: Support; ◊: Support after firmware upgrade; ─ : Requires external component