E1107_Flash_Tutorial.pdf

2. Specification

2-1. GSM900/DCS1800 General Specification

EGSM 900

Phase 2

DCS1800

Phase 1

Freq.

Band[MHz]

Uplink/Downlink

880~915

925~960

1710~1785

1805~1880

ARFCN range

0~124 & 975~1023

512~885

Tx/Rx spacing

45MHz

95MHz

Mod. Bit rate/

Bit Period

270.833kbps

3.692us

270.833kbps

3.692us

Time Slot

Period/Frame

Period

576.9us

4.615ms

576.9us

4.615ms

Modulation

0.3GMSK

MS Power

33dBm~5dBm

30dBm~0dBm

Power Class

5pcl ~19pcl

0pcl ~15pcl

Sensitivity

-102dBm

-100dBm

TDMA Mux

Cell Radius

35Km

2Km

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Specification

2-2. GSM TX power class

TX Power

control level

GSM900

TX Power

control level

DCS1800

33±2 dBm

30±3 dBm

31±2 dBm

28±3 dBm

29±2 dBm

26±3 dBm

27±2 dBm

24±3 dBm

25±2 dBm

22±3 dBm

23±2 dBm

20±3 dBm

21±2 dBm

18±3 dBm

19±2 dBm

16±3 dBm

17±2 dBm

14±3 dBm

15±2 dBm

12±4 dBm

13±2 dBm

10±4 dBm

11±3 dBm

8±4dBm

9±3dBm

6±4 dBm

7±3 dBm

4±4 dBm

5±3 dBm

2±5 dBm

0±5 dBm

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3. Product Function

Main Function

- Simple and modern bar design

- Battery charge by solar enegy

- Speaker Phone Function

- Mobile Tracker, My Menu, Living world

- Torch Light

- FM Radio

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10. Reference data

Reference Abbreviate

― ADC : Analog to Digital Converter

― AMPS : Advanced Mobile Phone System(analog IS-95)

― BGA : Ball Grid Array

― BPF : Band Pass Filter

― CDMA : Code Division Multiple Access

― DL : Downlink

― FTP : File Transfer Protocol

― GPS : Global Positioning System

― MMS : Multimedia Messaging Service

― PBA : Panel Board Assembly

― PCS : Personal Communication System

― PIM(S) : Personal Information Management (System)

― QPSK : Quadrature Phase Shift Keying

― RF : Radio Frequency

― RSS : Received Signal Strength

― SAW : Surface Acoustic Wave

― SMS : Short Message Service

― TCXO : Temperature Compensated Crystal Oscillator

― TSP : Touch Screen Panel

― UL : Uplink

― USB : Universal Serial Bus

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1. Safety Precautions

1-1. Repair Precaution

― Repair in Shield Box, during detailed tuning.

Take specially care of tuning or test, because the specification of cellular phone is sensitive for

surrounding interference(RF noise).

― Be careful to use a kind of magnetic object or tool, because performance of parts is damaged by

the influence of magnetic force.

― Surely use a standard screwdriver when you disassemble this product, otherwise screw will be

worn away.

― Use a thicken twisted wire when you measure level.

A thicken twisted wire has low resistance, therefore error of measurement is few.

― Repair after separate Test Pack and Set because for short danger (for example an overcurrent

and furious flames of parts etc) when you repair board in condition of connecting Test Pack and

tuning on.

― Take specially care of soldering, because Land of PCB is small and weak in heat.

― Surely tune on/off while using AC power plug, because a repair of battery charger is dangerous

when tuning ON/OFF PBA and Connector after disassembling charger.

― Don't use as you pleases after change other material than replacement registered on SEC System.

Otherwise engineer in charge isn't charged with problem that you don't keep this rules.

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