GNSS Receiver: DGPS Get Brochure GR-3 a

Topcon’s GR-3 receiver, the next generation of system design and tracking technology, is now available with a completely new digital UHF radio system utilizing DSP technology. This technological advancement delivers far greater reliability and performance than older analog UHF technology of the past and sets new standards for performance, accuracy and innovative design.

GPS receiver design has taken a quantum leap forward with the new GR-3. It starts with 72 “universal” channels that support all current and planned satellite positioning signals. Then there’s the micro-tuned, precision antenna capable of receiving all G3 positioning signals with Topcon’s patented center-mount radio antenna for superior signal tracking and interference reduction.

The GR-3 receiver incorporates a unique dual communication system, featuring both cellular and radio technology. Offering a 915 MgHz Spread Spectrum internal Tx/Rx* or Digital UHF radio, the GR-3 can serve roles as either an RTK base or rover system. And by utilizing the optional internal GSM/GPRS/CDMA modem communication system via the easily accessible cellular SIM card slot, a user can extend their range far beyond radio capability or utilize both receivers as rover systems off a fixed base station or a network system.

*915 MgHz Spread Specturm radio technology is not approved for use in Europe or Asia

It is the World’s First G3 (GPS, Glonass, Galileo) capable GNSS receiver, and a clear indication of

Topcon’s technology leadership in the satellite positioning industry!

GR-3 features

  • Digital UHF or Spread Spectrum radio
  • Advanced Rugged System Design
  • Optional Internal GSM/GPRS/CDMA Cellular Communication
  • 72 Universal Tracking Channels
  • Bluetooth Wireless Technology
  • G3 Satellite Tracking (GPS, Glonass, Galileo)

Rugged magnesium I-beam construction for unbeatable strength & durability, the GR-3 also boasts easily accessible SD card memory and dual hot-swappable batteries for unlimited continuous operation. Internal Bluetooth wireless technology provides GR-3 users with the advantages of a completely cable-free system with any Topcon field controller.

Topcon's GR-3 with its wide array of advanced design features is truly a revolutionary receiver– two steps ahead of any other receiver technology available!

Product Kits

GR-3 Base and Rover Kit:
  • 2 GR-3 915
  • 4 Rechargeable Batteries
  • 2 Alkaline Battery Packs
  • 2 Smart Battery Chargers
  • Fixed Height Tripod
  • 2m Grade Pole
  • Dual Unit Carry Case

GR-3 Base Kit:

  • GR-3 915
  • 2 Rechargeable Batteries
  • Alkaline Battery Pack
  • Smart Battery Charger
  • Fixed Height Tripod
  • Carry Case

　

GR-3 Rover Kit:

  • GR-3 915
  • 2 Rechargeable Batteries
  • Alkaline Battery Pack
  • Smart Battery Charger
  • 2m Grade Pole
  • Carry Case

GR-3 w/GSM Base and Rover Kit:

  • 2 GR-3 915 w/ GSM
  • 4 Rechargeable Batteries
  • 2 Alkaline Battery Packs
  • 2 Smart Battery Chargers
  • Fixed Height Tripod
  • 2m Grade Pole
  • Dual Unit Carry Case

GR-3 w/GSM Rover Kit:

  • GR-3 915 w/GSM
  • 2 Rechargeable Batteries
  • Alkaline Battery Pack
  • Smart Battery Charger
  • 2m Grade Pole
  • Carry Case

　

Performance Features

Standard:

Full GPS L1, L2, C/A code, P code and L2C code signal tracking
RTK 5Hz position and raw observation output
Advanced Multipath Reduction
Co-Op Tracking
Cinderella Functionality
All data and communication ports active

Optional Upgrades:

1. PS L5 Tracking
2. GLONASS L1, L2 Tracking
3. GALILEO Tracking
4. Add GSM Modem
5. VRS Enabled
6. RTK 10Hz
7. RTK 20Hz

Specifications

Tracking

Signal
GPS/GLONASS L1/L2/L5 C/A and P Code & Carrier, Gallileo E 1/2/5a and L1, WAAS/EGNOS

Channel

 72

Cold Tracking

 <30 seconds

Warm Tracking

 <5 seconds

Reacquisition

 <1 seconds
Accuracy

Static

 3mm +.5ppm horizontal, 5mm + .5ppm vertical

RTK/Kinematic

 10mm + 1 ppm horizontal, 15mm + 1 ppm vertical

DGPS

 > .25m Post Processing, < .50m Real time
Physical

Enclosure

 Magnesium I-beam Housing, Waterproof construction

Dimensions

 W: 158 x D: 158 x H: 234.5 mm

Weight

 1.78 kg

Color

 Topcon Grey/Yellow
Environmental

Operating Temperature

 -20 to +50 degrees Celsius

Storage Temperature

 -20 to +35 with batteries, -40 to +75 without batteries degrees Celsius

Waterproof

 IP66

Drop

 2 m
Power

Internal Battery

 2 Li-Ion, 3900mAh, 7.2V

Operating Time

 14 Hours

External Power

 1 port(s)

Battery Charger

 Dual Li-Ion "Smart" charger with optional Alkaline battery pack. Charger doubles as external power source
Communication

Bluetooth

 Bluetooth standard 1.2

USB

 1.1 Version
Key and LED

Key

 Two keys, Power ON/Off and Function Start/stop data logging, switch to extended information mode

LED

 6, one for receiver status, data recording indication, TX/Rx, Bluetooth status and 2 for indication of each battery charge level
Memory

Internal Memory

 Environmentally protected, removable SD? media card slot

Capacity

 1024 MB
Connectors

External Power Port

 1 port(s), DC Jack Type A ODU

External Antenna Connector

 reverse tnc/bnc modem connector

SD Card Slot

 1 slot, Memory I/O

Serial Port

 1 port(s), RS232 ODU