Trimble Outdoors r7-r8 User Manual

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Trimble R7/R8 GPS Receiver User Guide     1 1 1
Overview     1 2
Tr
imble R8 Operation
Single Lithium-ion rechargeable battery
Cable-free Bluetooth communications with the Trimble 
Attachable Control Unit (ACU), or TSCe™ with Bluecap 
module 
Two RS-232 serial ports for:
NMEA  output
RTCM SC-104 input and output
Trimble Format (CMR & CMR Plus) input and output
One TNC radio antenna connector
6 MB internal memory for data storage
Internal 450 MHz radio with a transmit option or GSM module