Modular Communication Kit
(CM - 006)
  • Amplitude modulation (AM) and demodulation
  • Product detection of (AM) signals
  • Noise in (AM) communications
  • Double Sideband (DSBSC) modulation
  • Observations of (AM) and (DSB-SC) signals in the frequency domain
  • Single Sideband (SSB-SC) modulation & demodulation
  • Single Sideband (SSB) modulation & demodulation
  • Frequency Modulation (FM) and Demodulation
  • (FM) Generation using the harmonic multiplier method
  • Sampling & reconstruction
  • (PCM) encoding / Decoding
  • (PCM) and time division multiplexing (TDM)
  • An introduction to Armstrong’s modulator
  • Bandwidth limiting and restoring digital signals
  • Amplitude Shift Keying (ASK)
  • Frequency Shift Keying (FSK)
  • Binary Phase Shift Keying (BPSK)
  • Quadrature Phase Shift Keying (QPSK)
  • Spread Spectrum - (DSSS) modulation & demodulation
  • Undersampling in Software Defined Radio
  • Phase division modulation  and  demodulation
  • Pulse-width modulation (PWM) and demodulation
  • Message translation and inversion
  • Carrier acquisition using the phase-locked loop
  • Signal-to-noise ratio and eye diagrams
  • Pulse code modulation (PCM) and signal-to-noise distortion ratio (SNDR)
  • (ASK) demodulation using product detection
  • (FSK) generation with switching method and demodulation
  • Principles of Gaussian FSK (GFSK)
  • PN sequence spectra and noise generation
  • Line coding and bit-clock regeneration
  • Delta modulation and demodulation
  • Delta-sigma modulation and demodulation
  • Method 2 of AM and product detection of AM signals
  • FM Generation using the harmonic multiplier method
  • Modular Communication Kit (CM - 005)
  • Hard copy user manual

The modular Communication Kit is based on the concept of Block Diagram. It is a featured solution for introducing communication technologies to the trainee for the first time. The kit consists of multiple blocks, each block represents a part of the circuit that performs an experiment. It’s Covering a wide range of topics in Analog and Digital Communications. using Kit modules, trainees can perform up to 36 diverse experiments. The modules are easy to connect together by using of 2mm safety bananas.

                                     
  • Module Left hand side banana is for signal inputs ( high impedance inputs ).
  • Module Right hand side banana is for signal outputs ( Low impedance outputs ).
  • Banana Marks for analog and digital signals to ease the interconnection.
  • Input and outputs are protected due to mis-wiring.
  • Variable controls adjustment in modules depends on observation and measurement of output signals.
  • Kit modules:
    • Variable DC Voltage Signal Module:
      • Output Signal : Variable (-2.5 to 2.5V up to 5mA), Fixed (+5V DC up to 10mA)
    • Function Generator Module:
      • Output Signal:
    • Analog ( 100KHz Sine, 2KHz Sine, 100KHz Cos ) 4Vpp
    • Digital ( 100KHz, 8KHz, 2KHz ) 0:5V
    • Variable DC Voltage Signal Module:
      • Output Signal : Variable (-2.5 to 2.5V up to 5mA), Fixed (+5V DC up to 10mA)
    • Noise Generator Module:
      • Output Signal : 3 Analog outputs 0dB (4.8Vrms) , -6dB (2.4Vrms) , -20dB (0.48Vrms)
      • BW : 10Hz to 240KHz, White Noise
    • Sequence Generator Module:
      • Input Signal : Digital 0:5V ,1Hz to 100KHz
      • Number of sequences : 2, X (31 bits) and Y (255 bits)
      • Output Signals : Digital 0:5V ( X, Y and Sync )
    • Twin Pulse Generator Module:
      • Input Signal : Digital 0:5V ,up to 8KHz
      • Output Signals : 2 Digital 0:5V ( Q1, Q2 )
      • Control : Pulse Width (5 to 40 µs), Pulse Delay (Q2-Q1 50 to 300µs)
    • Voltage Controlled Oscillator Module:
      • Input Signal: digital -3:3V , analog 4Vpp
      • Two operating frequency ranges: Low 1KHz to 17KHz, High 60KHz to 140Khz
      • Output signal : analog and digital (1KHz to 17KHz , 60KHz to 140Khz)
      • Gain: 1 to 2
    • Comparator Module:
      • Input Signal : Analog 4Vpp and DC Threshold
      • Output Signals : Digital 0:5V ( Up to 100 KHz )
    • Rectifier Module:
      • Input Signal : Analog 4Vpp (Up to 100KHz)
      • Output Signals : Analog Half wave rectified
    • Diode and RC Low pass filter Module:
      • Input Signal : Analog ( Audio Range )
      • Cutoff Freq : 2.6 KHz
    • Line Code Encoder Module:
      • Input Signal : Digital 0:5V
      • Line Codes Modes :
    • Non Return to Zero level (NRZ-L).
    • Bi-phase line (Manchester).
    • Return to Zero - Alternate Mark Invert (RZ-AMI)
    • Non Return to Zero - Mark (NZR-M)
      • Input Clock : Digital 0:5V, up to 100 KHz
      • Output Signal : -2V to +2V
    • PCM Encoder Module:
      • Input signal : 2 Analog +/- 2Vp ( Audio Frequency ), CLK Digital 0:5V up to 128KHz
      • Output Signal : Serial, 0:5V Data Stream in Standard offset binary format (8bits) Plus Frame Synchronization Pulse (FS).
      • Modes : PCM / TDM
    • PCM Decoder Module:
      • Input Signal : Serial, 0:5V Data Stream in Standard offset binary format (8bits) Plus Frame Synchronization Pulse (FS) and CLK Digital 0:5V up to 128KHz.
      • Output signal : 2 Analog +/- 2Vp ( Audio Frequency )
      • Modes : PCM / TDM
    • Phase Shifter Module:
      • Input signal : Analog up to 4Vpp
      • BW: DC to 200 KHz
      • Control : Phase shift adjustment potentiometer (0:360 Degree)
    • Adder Module:
      • Input signal : Analog up to 4Vpp
      • BW: DC to 600 KHz
      • Gain : 0 to 2
    • Buffer Module:
      • Input signal : Analog up to 4Vpp
      • BW: DC to 600 KHz
      • Gain : 0.2 to 10
    • Band Pass Filter Module :
      • Input signal : Analog up to 4Vpp
      • Center Freq : 100 KHz
      • BW: 20 KHz
      • Gain : 1
      • Type : 6 th order chebyshev with 0.1dB ripple
    • Low Pass Filter Module :
      • Input signal : Analog up to 4Vpp
      • Cutoff Freq : 2 KHz
      • Gain : 0.9, Type : 4 th order Butterworth
    • Tunable Low Pass Filter Module :
      • Input signal : Analog up to 4Vpp
      • Cutoff Freq : 0.6 KHz to 12 KHz
      • Gain : 0 to 1.6, Type : 8 th order Elliptic
    • Divider Module :
      • Input signal : Digital 0:5V
      • Output signal : Digital 0:5V
      • Input Frequency : up to 1MHz
      • Modes : Invert, Divide by 2/4/8
    • Dual Analog Switch With Sample And Hold Module:
      • Input Signal : 2 of Analog inputs up to 4Vpp
      • BW : DC To 50 KHz
      • Control Signals : 2 of Digital 0:5V ( Up to 100 KHz )
      • Output Signal : 1 Analog Output, 1 S&H output
    • EXOR Module:
      • Input Signal : 2 of Digital inputs 0:5V
      • BW : DC to 1MHz
      • Output signal : Digital 0:5V
    • Headphone Amplifier Module:
      • Input Signal : Analog
      • Output Signal : Analog and 3.5mm Stereo socket for headphone > 80 ohm impedance
      • Output power : 0.125 W
      • Control : Gain adjustment potentiometer
    • Multiplier Module:
      • Input Signals: 2 Analog Signals AC Coupled, 2 DC offsets
      • BW : DC to 600KHz
      • Output Signal : 1 Analog Signal
    • Serial To Parallel Module:
      • Input Signal : 2 Digital 0:5V ( Serial Data, CLK up to 100KHz )
      • Output Signal : 2 Digital -2:2V ( X1, X2 )
    • Speech Module:
      • Input Sensor : Electret-Type Microphone
      • Output Signal : Analog 0.6Vrms
    • Expansion module:
      • To install optional additional modules
    • Analog I/O module:
      • 4 terminals to produce signals or read and analyze analog signals using the software
    • Digital I/O module:
      • 8 terminals to produce digital signals or read and analyze digital signals using the software