Description
Sokkia GRX1 GNSS Receiver
Sokkia GRX1 receiver brings a new level of flexibility into precision GNSS applications. Whether it’s used for RTK base or rover, for network RTK rover or even as a static receiver, the GRX1 provides unmatched usability and convenience that increases field work efficiency on every job site.
The GRX1 GNSS receiver is a fully integrated GPS & GLONASS receiver and antenna, digital UHF modem, GSM/GPRS module, Bluetooth® module and detachable battery into a compact and rugged magnesium alloy body.
Fully Scalable Composition
GRX1’s scalable architecture will maximize allow you to return on investment. You start with an L1 GPS receiver with minimal initial costs, which can be upgraded to L1 GPS+GLONASS, to L1/L2 GPS, up to 72-channel L1/L2 GPS+GLONASS receiver at any time you need.
Maximum Versatility in RTK Applications
Utilizing full wireless connectivity and the Sokkia-invented voice navigation system, the GRX1 dramatically facilitates the use of both RTK and network RTK technologies.
- Built-in GSM/GPRS modem makes the GRX1 an ideal rover receiver for network RTK positioning.
- The GRX1 can be used for both private RTK base and RTK rover using internal digital UHF modem without any extra device.
- It also supports network RTK where the correction data is broadcasted by UHF radio.
- Voice messages notify the users when RTK is fixed or lost, or other problems occur. This feature dramatically increases work efficiency by eliminating a need for repeated checks with the controller display.
Specifications:
| Tracking capability |
| Number of channels |
72 channels |
| Tracked signals |
GPS: L1 CA, L1/L2 P-code, L2C
GLONASS: L1/L2 CA, L1/L2 P-code
SBAS: WAAS, EGNOS, MSAS |
| Positioning accuracy |
| Static |
L1+L2: H: 3mm + 0.5ppm V: 5mm + 0.5ppm
L1 Only: H: 3mm + 0.8ppm V: 4mm + 1ppm
|
| Fast static |
L1+L2: H: 3mm + 0.5ppm V: 5mm + 0.5ppm |
| Kinematic |
L1+L2: H: 10mm + 1ppm V: 15mm + 1ppm |
| RTK |
L1+L2: H: 10mm + 1ppm V: 15mm + 1ppm |
| DGPS |
<0.5m |
| User interface |
| Operation |
Single-button operation for power, receiver reset, memory initialization |
| Display panel |
22 LED status indicators |
| Voice navigation |
Multi-lingual voice messages for receiver status information |
| Data management |
| Memory |
SD/SDHC card (FAT16/32 formats) |
| Data format |
RTCM SC104 2.1/2.2/2.3/3.0/3.1, CMR, CMR+, NMEA, TPS |
| Update/output rate |
1Hz, 5Hz, 10Hz, 20Hz |
| Communication port |
RS-232C (4,800 to 115,200bps) |
| Wireless communication |
| Bluetooth modem |
V.1.1, Class 1, 115,200bps |
| Digital UHF modem |
Internal, receiver (RX) and transmitter (TX), 410 to 470MHz |
| GSM/GPRS modem |
Internal |
| Environmental |
| Dust and water protection |
IP67 (IEC 60529:2001) at closing all connector caps. Protected against temporary immersion up to 1m (3.3ft.) depth. |
| Shock |
2m (6.56ft.) pole drop |
| Operating temprature |
GRX1 receiver: -40 to +65°C (-40 to +149°F)
BDC58 battery: -20 to +65°C (-4 to +149°F)
UHF/GSM modems: -20 to +55°C (-4 to +131°F) |
| Storage temperature |
-45 to +70°C (-49 to +158°F) |
| Humidity |
100%, condensing |
| Physical |
| Enclosure |
Magnesium alloy housing |
| Size |
Dia. 184 x H 95mm (dia. 7.24 x H 3.74 in.) |
