Surecom SR-328 Duplex Repeater Controller  only
Introduction
Radio Range Extender,The SR-328 is a multi-function and cheaper device that connects any handheld or mobile radio.
By equipment and so on our assemble the build, the new generation trunk-line board, the internal structure design are finer, the outward appearance is more attractive. Besides can provide a  the basic repeater function which has following the receiver transmitter, furthermore has the Simple connection, provides the more ideal 2-way radio conversation region for you, causes you maintains the relation in the bigger operating region.
This  is a radio duplex repeater controller. It is an easy of operation and  cost effective and highly flexible platform for setting up bi-direction  band duplex repeater with mobile radio and handheld radio.  .
The SR-328 has 2 audio ports input and out , they are used to connect with mobile and handheld radio. DTMF remote control function with password protection is available in the . User can control the repeater ON or OFF remotely by DTMF. Multi-LED display 2 of radio status , and  build-in battery Level.
Feature & Specification
-Works with most popular handheld radios
-Multi- LED display 2 radio status , And controller Battery Level　
-Real time duplex repeater with link radio　
-Allows user to change the DTMF remote control password by radio 　
-Operates on both build-in Li-ion battery 72 hours long life operation
-External DC 5~24V power supply　
-DTMF remote control repeater function ON and OFF with password protection
-Professional manufacturer low power consumption .
       Features:
Connector Radio unit:
　2
 Build in 3.7V Li-ion Battery:
　900maH
 Ext.DC Jack 5.5/2.1mm:
　DC+5V~24V
 Standby Time:      180hours
 Standby Current:      4mA
Work Current:    20-30mA
 SIZE:
110×80×25mm
Operating temperature:    -10°C to +50°C
　    　    　
LED DISPLAY OF SIX
　    　    　
Charge     Red                             Charge
 Blue                           Full
　    　    　
Power /TX Status     Red flash                         Power on / standby
  Blue                           Radio A RX  >  B TX
 blue flash          Sleep mode
　    　    　
Battery Life     4 of  Yellow LED     100%
 3 of Yellow LED    80%
 2 of Yellow LED    50%
 1 of Yellow LED    40%
Flash  of  Yellow LED    10-30%
Package Contents
1 x SR328 Duplex Repeater Controller
1 x 100-240V USB power supply unit
1 x USB Power Cord