SFFR-6
User Manual
Getting Started
Doc ID: ES1002-UM02-v204a
Copyright © 2014 Etherstack London Limited
Page 17 of 39
2.2.7 Duplexer
The GoBox will be fitted with a duplexer when the single antenna interface is fitted. The duplexer module will be tuned to
the centre frequency requested at the time of order to maximise RF performance.
Additional Duplexers in the same band can be ordered and swapped within minutes. Additionally the GoBox can auto
sense the installed duplexer and select the correct operational profile without any user interaction.
To remove the Duplexer, ensure the GoBox is off and all power sources removed. Turn the locking screws counter
clockwise to remove and lift the Duplexer module out.
2.2.8 Power Amplifier
The GoBox will be fitted with a power amplifier.
The Duplexer is not hot swappable. You must ensure the GoBox is powered down, batteries removed and all
external power sources disconnected before removing the Duplexer module.
!
The GoBox Power Amplifier has been designed to run at high temperatures in order to support the power output
and high duty cycles typical of a heavy use repeater/base station. Care must be taken if the GoBox has been
running for several hours supporting a large volume of calls. The chassis area located near the handle can get hot.
!
