RICHTER GNSS Receiver
A new generation of measurement engine

Richter GNSS Receiver

A new generation of measurement engine

Net plus - A21

Net Plus or A21 is a mini portable multifunctional GNSS receiver, a new generation of measurement engine, supports tilt measurement, built-in 4G module, all-network link, Bluetooth / WIFI, adopts a new design, magnesium alloy structure, Linux operating system, is a mini type, multi-functional, lightweight and portable geodetic GNSS receiver.

Linux smart system

Linux MDM9628 Cortex smart system platform brings users efficient computing and unlimited expansion of product functions.

Full system frequency GNSS receiver

The host integrated with high precision positioning module support BDS B1, GPS L1, GLONASS L1, Galileo E1, SBAS L1, QZSS L1, Full system full frequency signal receiving and processing.

Tilt measurement

Built intelligent high inertial navigation module real tilt compensation to avoid RTK measurement point
The best IMU technology of 2021

4G all link

The 4G all link solution based on the Linux platform fully supports Europe Mobile 2 network with better compatibility stronger signal and more stable connection

Combination type antenna

The new four antenna integrates GNSS WIFI Bluetooth and 4G with smaller dimension and better signal.

Long endurance

Built large intelligent lithium battery to ensure continuous working time over 9 hours.

Features

  • Linux MDM9628 Cortex smart system platform
  • Support BDS, GPS, GLONASS, Galileo, QZSS, SBAS
  • Centimeter positioning
  • Support tilt measurement meet the positioning accuracy of less than 2cm within the range of 60° 
  • Industrial design strong magnesium alloy housing IP67 safe and reliable

Product Parameters

Configurations Net PlusA21
Hradware PlatformQualcomm MDM9628 CortexQualcomm MDM9628 Cortex
Software PlatformLinuxLinux
GNSSGPSL1, L2, L5L1, L2, L5
GLONASSL1, L2L1, L2
BDSB1, B2, B3B1, B2, B3
GALILEOE1, E5a, E5bE1, E5a, E5b
QZSSL1, L2, L5L1, L2, L5
SBASL1L1
Channel430800
Data formatNMEANMEA
Correction I ProtocolRTCM2, RTCM3RTCM2, RTCM3
Data update rate5Hz5Hz
Reacquisition time>1s>1s
Cold start>0s>0s
Positioning
accuracy
Single point positioning (RMS)Horizontal: 1 Vertical: 3Horizontal: 1 Vertical: 3
DGPS (RMS)Horizontal: 1 Vertical: 3Horizontal: 1 Vertical: 3
RTK (RMS)Horizontal: ±(10mm)
vertical: ±(15mm)
Horizontal: ±(10mm)
vertical: ±(15mm)
Time accuracy (RMS)20ns20ns
Speed accuracy (RMS)00
Tilt compensation
accuracy (within 60°)
> function is optional> function is optional
The system
platform
BluetoothV2 V4 Dual modeV2 V4 Dual mode
WIFI802 a b802 a b
Cellular network
communication
all link
LTE FDD: B1
LTE TDD:B38
TD B34
CDMA:B1
WCDMA:B1
GSM:900
all link
LTE FDD: B1
LTE TDD:B38
TD B34
CDMA:B1
WCDMA:B1
GSM:900
Built in memory32GB32GB
Indicator
light
Power lightPower indicatorPower indicator
Satelite lightFlicker represents effective positioningFlicker represents effective positioning
Blurtooth lightAlways on when blue tooth is connectedAlways on when blue tooth is connected
Data link lightFlicker when there is correction signalFlicker when there is correction signal
BatteryEndurance< Hour under typical power
consumption
< Hour under typical power
consumption
RechargeSupport MTK PE 1 9V 16A
Support USB PD 12V A
Support 5V
Support fast charging
adapter adaptive dynamic
adjustment of charging
Support MTK PE 1 9V 16A
Support USB PD 12V A
Support 5V
Support fast charging
adapter adaptive dynamic
adjustment of charging
Environmental
features
Working temprature°C~ °C°C~ °C
Storage temprature°C~ °C°C~ °C
Shock ResistanceResistance to 1m drop with rod at room
temprature
Resistance to 1m drop with rod at room
temprature
Protection ratingIP67IP67
Physical
features
MaterialsMagnesium alloy shell /PC Plastic lidMagnesium alloy shell /PC Plastic lid
Dimension100mm100mm
Weight≤0≤0
Packing list1 set1 set
5V USB power adapter1 PCS1 PCS
USB A to type C data cable1 PCS1 PCS
Converter1 PCS1 PCS