Description

Cellular Mobile Communication System

Technical Specification :

Phone Users Display:
16-character x 2 lines
Keyboard:
4 lines x 4 columns
DTMF (Dual Tone Multi Frequency):
Telephone tone generator
2-Band filter decoder DSP IC:
Generates DTMF signal
Uses the keyboard for data input
Shows the number selected on the display
PIC IC manages:
Display
Keyboard
Calls
Built-in loudspeaker with adjustable power amplifier
Selections:
Dialing
Incoming call answer
Radio channel
Channel Coding:
PCM (Pulse Code Modulation)
8-bit word: 13-bit linear to pseudo-log 8-bits
ADC (and DAC) by data companding
8-kHz sampling frequency
Baud rate of 64 kb/s
TDMA Frame:
4 User Time Slots
1 Synchronism Time Slot
Time Slot display
Smoothing Filter

UHF Transmitter and Receiver:
4 selectable channels by PLL circuit
RF channel frequency: 2400 to 2481 MHz
In/Out Impedance: 50 Ω
Transmitter Output RF Power: ≥ 10 dBm
Simulators:
Channel Noise simulator
Channel Attenuation simulator
Antennas:
2 Stylus Antennas
Compact and Strong Metal Box Includes:
Liftable cover with block diagram
Electronic components and power supply
Schematic diagram including signalling LEDs, selection switches,
and 42 measuring test points
Fault simulator: protected with key-locked cover and including 12
faults insertable by means of switches
Cables as necessary, Microphone
Power Supply:
230 Vac 50 Hz single-phase
30 VA

Accessories:

Connecting Wire: 1 set
User Manual: 1 Nos
Standard Accessories

Others
Country of Origin: China
Manufacturing: Assemble in Bangladesh
Training
Warranty: 1 Year