Specifications
GR-3 Operator’s Manual
A-2
Receiver Specifications
The following sections provide specifications for the receiver and its
internal components.
General Details
Table A-1 lists the receiver’s general specifications.
Table A-1. Receiver General Specifications
Physical
Enclosure Magnesium, IP66 extrusion, rainproof
Color Topcon Yellow and Topcon Grey
Dimensions W:156.6 x H:234.5 x D:156.6 mm
Weight 1.78 kg
Antenna Internal
Battery Two external, detachable
Controller External
Mounting 5/8-11, quick disconnect
Seals Silicon (molding in Color)
Keys Two keys:
Power – On/Off
Function – start/stop data logging; switch information
mode.
LEDs Six LEDs:
STAT – satellite and receiver status
REC – record and data status
RX TX – modem status
BT – Bluetooth wireless technology connection status
BATT x 2 – battery status
Environment
Operating
temperature
-20 C° to +50 C° with batteries
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