NaviSys Technology - Your Location Partner
Cm-level GNSS Smart Antenna / GR-901
GR-901, Centimeter-level
L1/L2 Multi-band GNSS
Smart Antenna
Overview
support for RTK fix.
High sensitivity+:-167dBm tracking/-148dBm
GR-901 is equipped with high-sensitivity, high precision
acquisition
engine of u-blox ZED-F9P, GNSS multi-band antenna,
Up to 8Hz update rate for quad-GNSS constellation
backup battery in a compact IP67 housing.
or 15Hz for dual-GNSS constellations.
Mounted with wide-band antenna, this module supports
Magnet option available
dual band L1/L2 GPS/GLONASS/BEIDOU/Galileo/QZSS
Plain disk without magnet inside
satellite systems simultaneously in one design.
Disk and pedestal with embedded magnet
Pole support for acting as an RTK base
This module exhibits fast RTK fix, reliable performance,
Quad-M3x8 screw holes for pole fixing
high update rate for highly dynamic applications and
Windows location sensor support
centimeter accuracy in a small and energy-efficient way.
OMA SUPL compliant A-GPS support
It could be served as either an RTK rover or a base.
SBAS (WAAS, EGNOS, MSAS, GAGAN) support
This all-in-one smart antenna allows just plug and play,
Excellent EMI protection
fast time to market with outstanding performance.
Technical Specifications
Applications
Receiver Performance Data+
UAV
u-blox ZED-F9P
Automatic farming
Supported
GPS/SBAS/QZSS: (MHz)
Machine control
GNSS
L1 C/A (1575.42),
Robotic guidance
Constellations
L2C (1227.60)
GLONASS: (MHz)
Features
L1OF (1602+k*0.5625, k= -7,…,5,6),
Based on ZED-F9P high precision module.
L2OF (1246+k*0.4375, k= -7,…,5,6),
Plug and play cm-level smart antenna
Galileo: (MHz)
USB/RS232/UART TTL options
E1-B/C (1575.42),
Built-in L1/L2 band antenna and circuits supporting
E5b (1207.140)
multiple constellations simultaneously
BeiDou: (MHz)
GPS+Galileo+GLONASS+BeiDou
B1I (1561.098)
SBAS, QZSS
B2I (1207.140)
DGNSS RTCM 10403.3 version 3 messages
NaviSys Technology Corp.
Tel : +886-3-5632598
Fax: +886-3-5632597
Address: 2F, No.56, Park Ave. II, Hsinchu Science Park, 30844, Taiwan (R.O.C.)
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NaviSys Technology - Your Location Partner
Cm-level GNSS Smart Antenna / GR-901
Position
Horizontal:
Max. Altitude
50,000 m
Accuracy
RTK: 1 cm+1ppm CEP
Max. Velocity
500 m/s
(RTK
SBAS: 1 m CEP
Protocol
NMEA 0183 up to v 4.11, ASCII
baseline up to
PVT: 1.5 m CEP
Support
GGA, GLL, GSA, GSV, RMC, VTG, TXT
20km; 24
Vertical: (result with 1km baseline)
UBX: u-blox proprietary, binary
hours static)
RTK: 1 cm+1ppm R50
RTCM 3.3: binary
Velocity
<0.05 m/s (speed)
Default
UART1 & 2: 38400bps, N-8-1
Accuracy
<0.3° (heading)
Settings
UART1: NMEA, UBX, RTCM 3.3 enabled
(50% @ 30 m/s for dynamic operation)
Only NMEA output
Time Pulse
0.25Hz...10MHz
UART2: RTCM 3.3 enabled, No output,
Signal
RMS: 30ns, 99%: 60ns
NMEA disabled,
Time To First
Autonomous (All at -130dBm)
UBX not supported
Fix (TTFF)
Augmentation
QZSS: Support L1S SLAS
Hot start
2sec (GPS+Glonass+Galileo+BeiDou)
System
Correction data broadcasted on L1
Aided start
2sec (GPS+Glonass+Galileo+BeiDou)
Support
SBAS:
Cold start
25sec (GPS+Glonass+Galileo+BeiDou)
WAAS, EGNOS, MSAS, GAGAN
Sensitivity
GPS+Glonass+Galileo+BeiDou
DGNSS: RTCM 10403.3
Acquisition: -148 dBm
Rover mode messages: (RTCM)
Reacquisition: -160 dBm
1001~1012, 1033,
Tracking & navigation: -167 dBm
1074, 1075, 1077, 1084, 1085, 1087,
Max. Update
a. GPS+Glonass+Galileo+BeiDou
1094, 1095, 1097, 1124, 1125, 1127
Rate
b. GPS+BeiDoui
Base mode messages: (RTCM)
c. GPS
1005, 1074, 1077, 1084, 1087, 1094,
RTK: 8Hz@a, 15Hz@b, 20Hz@c
1097, 1124, 1127, 1230, 4072.0, 4072.1
PVT: 10Hz@a, 25Hz@b, 25Hz@c
Dynamics
< 4g
RAW: 20Hz@a, 25Hz@b, 25Hz@c
+ Note. According to IC Spec
RTK
<10s@a&b, <30s@c
Electrical Data
Convergence
Depends on atmospheric conditions,
Power Supply
3.3 ~ 5.5 VDC
Time
baseline length, multipath conditions,
Power Consumption
118mA/average tracking (USB)
satellite visibility and geometry
(10Hz update rate)
# of SVs tracked: L1: 37, L2: 27
Moving Base
a. GPS+Glonass+Galileo+BeiDou
RTK
b. GPS+BeiDoui
Environmental Data
Performance
c. GPS
Operating temperature
-40 ~ 85℃
Max. update rate:
except battery: -20~60℃
8Hz@a, 10Hz@b, 10Hz@c
Storage temperature
-40 ~ 85℃
Heading accuracy: 0.4@a,b,c
except battery: -20~60℃
NaviSys Technology Corp.
Tel : +886-3-5632598
Fax: +886-3-5632597
Address: 2F, No.56, Park Ave. II, Hsinchu Science Park, 30844, Taiwan (R.O.C.)
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NaviSys Technology - Your Location Partner
Cm-level GNSS Smart Antenna / GR-901
Operating humidity
5% ~ 95% non-condensing
LED Indication
Green LED
ON, position not fixed,
Mechanical Data:
for GNSS fix
Blinking, position fixed,
Φ116*24.6 (mm) for disk without pedestal
OFF, power is OFF
Orange LED
ON, RTK fixed
for RTK fix
Blinking, RTK under fixing
OFF, not in RTK mode, i.e.
RTCM correction data is not
Φ116*56.8 (mm) for disk with pedestal
available.
Fixing screw holes, bottom of disk:
Ordering Information
GR-901X:
Other Data
*This document is subject to change without notice.
Cable Length
1.5 m for GR-901U
(default,
3 m for GR-901R
customizable)
1 m for GR-901T
Interfaces
GR-901T_S
GR-901R_Q
GR-901U_V
5
6
5
6
3
4
3
4
1
2
1
2
Pin
Mini-Din 6-pin
Mini-Din 6-pin
USB A type
PS/2 Male Plug
PS/2 Male Plug
Male Plug
1
GND
GND
VDD 5V
2
VCC
VCC
D-
3
TXD-TTL
TX-RS232
D+
4
RXD-TTL
RX-RS232
GND
5
$PPS
$:PPS
6
$#TP2
$#TP2
$:TTL signal level.
#TP2 is by default disabled.
NaviSys Technology Corp.
Tel : +886-3-5632598
Fax: +886-3-5632597
Address: 2F, No.56, Park Ave. II, Hsinchu Science Park, 30844, Taiwan (R.O.C.)
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