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                                                 CDMA PORTABLE
                                                 CELLULAR TELEPHONE
                                                 SCH-211




                                                      Manual
SERVICE
CDMA PORTABLE CELLULAR TELEPHONE                                  CONTENTS

                                                    1. General Introduction

                                                    2. Specification

                                                    3. Installation

                                                    4. NAM Programming

                     CDMA                           5. Circuit Description
          SEND
                                  END
          1            2
                                                    6. Troubleshooting
                           ABC
                                      3   DEF


          4   GHI
                       5   JKL
                                      6   MNO


          7   PQRS
                       8   TUV
                                      9   WXYZ
                                                    7. Exploded Views and Parts List
                       0   OPER


         PWR
                     CLR         OK   MENU          8. PCB Diagrams

                                                    9. Electrical Parts List

                                                    10. Block & Circuit Diagrams
ELECTRONICS




         Samsung Electronics Co.,Ltd.
                      GH68-00335A
Specification




1               Samsung Electronics - Contents may change without notice.
1. General Introduction


The SCH-211 cellular phone functions as both analog cellular phone working in AMPS (Advanced Mobile
Phone Service) mode and digital cellular phone working in CDMA (Code Division Multiple Access) mode.
CDMA type digital mode applies DSSS (Direct Sequential Spread spectrum) mode which first came to be
used in the military.
The DSSS reduces channel cross talk and allow to use one frequency channel by multiple users in the same
specific area, resulting in increase of channel capacity to about ten times compared to that of analog mode
currently used.

Soft/Softer Handoff, Hard Handoff, and Dynamic RF Power Control technologies are combined into this
phone to reduce the call drop while usage.

CDMA digital cellular network consists of MSO (Mobile Switching Office), BSC (Base Station Controller), BTS
(Base Station Transmission System), and MS (Mobile Station). MS meets the specifications of the below:

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