Getting Started with E91
13
•
Use the GPS to PC data cable to realize RS-232
communications between the receiver and
computer or controller.
•
Use the GPS to PC data cable to transmit
differential data to an external radio.
b
Reserved port
c
Reserved port
d
Radio antenna
connector
•
A TNC connector for external UHF antenna.
•
Use external UHF antenna to transmit or receive
UHF signals.
e
5/8” 11 TPI
threaded insert
•
A 5/8” 11 TPI threaded insert to connect a
centering pole or a tribrach adaptor.
2.3
Battery and Power
2.3.1
Internal Battery
The receiver has an internal Lithium-ion battery, which can not be removed for
charging.
Internal Battery