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The GR-G3 GPS+ antenna is an exciting addition to complete the line of Topcon GPS products. The GR-G3 antenna and the Topcon antenna cables are equipped to endure the harshest of environments. The GR-G3 antenna is highly recommended for precision geodetic applications including GNSS reference networks and infrastructure monitoring.GPS+ choke ring antenna.

The GR-G3 Features:

  • Reference station antenna with choke ring
  • Triple constellation capable antenna
  • Designed for highly efficient multipath reduction 
Specs Brochure - Click to Download
  
     
   
    GR-G3 Antenna w/o 30 meter cable:
• GR-G3, GPS+ antenna
• With or without Spherical Dome		 GR-G3 Antenna with 30 meter cable:
• GR-G3, GPS+ antenna
• With or without Spherical Dome 		   
   
 
Application
Features
 GPS L1, L2, & L5/GLONASS L1 & L2/Galileo; Reference station antenna with choke ring
Frequency
L1 GPS/GLONASS
 1586.5 +/- 25 MHz
L2 GPS/GLONASS
 1236 +/- 20 MHz
L5 GPS
 1176 +/- 12 MHz
Weight
Weight
 4.7 kg (Antenna without Topcon Anti-snow Dome), 1.1 kg (Topcon Anti-snow Spherical Dome), 5.1 kg (Antenna with Topcon Anti-snow Dome)
Dimensions
Diameter
 380 mm (Antenna without Anti-snow Dome); 380 mm (with Topcon Anti-snow Dome); 415 mm (with SCIGN Anti-snow Short Dome)
Height
 138.5 mm (Antenna without Anti-snow Dome); 292 mm (with Topcon Anti-snow Dome); 287 mm (with SCIGN Anti-snow Short Dome)
Power
Input Voltage
 +3 to + 18 VDC
Current Consumption
 30 mA (typical)
LNA Gain
LNA Gain
 25 dB ± 5dB (typical) 45dB ± 5dB (optional)
Output
Nominal Impedance
 50 Ohm
Connector
Type
 N female
Temperature
Operation
 -50 to +70 degrees Celsius
Storage
 -55 to +85 degrees Celsius
 
     
     
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