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Telecommunication Advanced Modular System
(ACM100)

Basic Experiments

  • Modeling of math equations
  • AM modulation (2 methods)
  • Envelopes/envelope recovery
  • DSBSC mod and demod
  • SSB modulation and phasing method
  • SSB demodulation - phasing method
  • Product demodulation
  • Phase lock loop
  • FM modulation & demodulation
  • Armstrong’s Phase modulator
  • PAM generation
  • TDM generation
    FDM generation or recovery
  • PDM generation or recovery
  • PWM mod and recovery
  • BPSK mod and demodulation
  • ASK mod and demodulation
  • FSK modulation (2 methods)

Advanced Experiments

  • Carrier acquisition - PLL
  • The noisy channel
  • Bit clock regeneration
  • Signal Constellations - 4/8/16-QAM and 4/8/16-PSK
  • FM demodulation - PLL
  • Detection with the decision maker
  • BER measurement
  • QAM and 4-PSK detailed
  • FSK - envelope demodulation
  • BPSK
  • PRBS sequence synchronization
  • Line coding and decoding
  • PCM Encoding and Decoding
  • ASK - advanced experiments
  • BPSK - advanced experiments
  • QASK modulation and demodulation
  • Complex analog messages

Signals & Systems Experiments

  • Special signals - Characteristics & applications
  • Systems: linear and non-linear systems
  • Unraveling convolution
  • Integration, Correlation & matched filters
  • Exploring complex numbers and exponentials
  • Build a fourier series analyzer
  • Spectrum analysis of various signal types
  • Poles and zeros in the laplace domain
  • Sampling and aliasing
  • Getting started with analog-digital conversion
  • Discrete-time structures: FIR
  • Poles and Zeros in the Z plane with IIR system

Spread spectrum Generation (CDMA & FHSS)

  • FHSS fast hopping transmitter
  • FHSS fast hopping receiver
  • FHSS slow hopping transmitter
  • FHSS slow hopping receiver
  • FHSS & Bit error rate performance
  • Hybrid DSSS/FHSS transmitter system
  • Hybrid DSSS/FHSS receiver system
  • Introduction & process gain (without noise system)
  • CDMA-introduction & process gain (with noise system)
  • CDMA-introduction & process gain (DSS)
  • CDMA-multichannel (2-channel)

Orthogonal Frequency Division Multiplexing (OFDM) Kit Experiments

  • QAM Without up/conversion
  • QAM with up/down conversion
  • OFDM Without up/conversion (QuadSignals) & PAPR
  • OFDM with up/down conversion (Time invariant channel & Bandlimited Channel)
  • OFDM with Cyclic Prefix
  • QAM with Multipath Channel
  • Cyclic prefix and OFDM with channel Equalization
  • OFDM with a Multipath channel with a cyclic prefix
  • OFDM with channel equalization
  • Telecommunication Modular System (ACM100)
    • Master Base Unit & Slave base-unit (ACM100.01)
    • Basic Experiments modules (ACM100.02)
  • Hard copy user manual
  • Advanced Experiments Modules (ACM100.03)
  • Signals & Systems Experiments Modules (ACM100.04)
  • Spread spectrum Generation (CDMA & FHSS) Experiments Modules (ACM100.05)
  • Orthogonal Frequency Division Multiplexing (OFDM) Kit (ACM100.06)
  • Digital content (BI01)
  • Advanced computer Interface Base Unit with Built-in Power Supply (MMS100)

OR

  • Customer to provide oscilloscope, function generator, multimeter
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Telecommunication Modular System used in laboratories to teach telecommunications, and signal processing courses from technical colleges to universities. It is a modeling system that simulates mathematical formulas for electrical signals or block diagrams for communications systems. it includes all of the tools needed to quickly and easily carry out every communications laboratory experiment. The main teaching method used by the Advanced Modular System combines both the theoretical and practical aspects of systems implementations. Through the experiments, the student gains a better understanding of the ideas underlying communications theory.

  • It consists of a variety of modules, each of which performs a specific function to be connected to each other during experiments as basic communication building blocks
  • The computer Interface Base Unit has virtual instrument that can be connected to a PC to provide spectrum analysis (FFT) and oscilloscope functions.
  • Modules are patched together via the front panel sockets using interconnecting leads, to model the system under investigation.
  • Module Left hand side banana is for signal inputs.
  • Module Right hand side banana is for signal outputs.
  • All inputs and outputs are color-coded to indicate the type of signal.
  • Banana Marks for analog and digital signals to ease the interconnection.
  • Variable control adjustment in modules depends on the observation and measurement of output signals.

Master Base Unit & Slave base-unit Code: (ACM100.01)

  • The master and slave base units provide place-holders for the Telecommunication Modular System Modules. They power up to 18 Modules of three different sizes to help the students focus only on the Signal & Block-diagram level and gain hand-on experience over various communication systems.
  • Master Base Unit
    • Holds up to 9 Modules
    • provides power supply +12V, -12V, +5V for the modules
    • Connection points are asymmetrically placed to prevent reverse polarity
    • Features short circuit protection using resettable fuses.
    • Provides a connector at the kit's backside for powering the slave base unit.
  • Slave base-unit
    • Extends the number by another 9 modules.
    • Contains a connector at the backside for easily plugging power cable from the Master base unit.
    • Connection points are asymmetrically placed to prevent reverse polarity.
  • Function generator
    • 2 Channel
    • 60 MHz, 200 MSa/s
    • Supports square, sine, triangular waveforms with variable offset, phase, amplitude and frequency

Basic Experiments modules Code: (ACM100.02)

  • 2x Comparator Module:
    • Input Signal: Analog 4Vpp & DC Threshold, up to 100 KHz
    • Output Signals: Digital 0:5V
  • 1x Clipper Module:
    • Operating Range: up to 100kHz
    • Output Level 1.8Vpk
    • Adjustable Gains 3 steps; x0.8, x8 and x40
  • 1x Rectifier:
    • Input Signal : Analog 4Vpp (Up to 100KHz)
    • Output Signals : Analog Half wave rectified
  • 4x Multiplier
    • Input Signals: 2 Analog Signals, up to 4Vpp
    • BW: up to 500KHz
    • Output Signal: 1 Analog Signal
    • Scaling factor: 0.5
  • 1x AC/DC coupling
    • Input Signals: 1 Analog Signals, up to 4Vpp
    • BW: up to 500KHz
    • Output Signal: 1 Analog Signal
  • 1x 7th order bessel
    • Input Signals: 1 Analog Signals, up to 4Vpp
    • Cut off frequency: 1KHz
    • Output Signal: 1 Analog Signal
  • 1x LPF2.8KHz
    • Input Signals: 1 Analog Signals, up to 4Vpp
    • Cut off frequency: 2.8KHz
    • Output Signal: 1 Analog Signal
  • 1x 7th order butterworth
    • Input Signals: 1 Analog Signals, up to 4Vpp
    • Cut off frequency: 1KHz
    • Output Signal: 1 Analog Signal
  • 2x Variable DC voltage
    • Output Signal: Variable (-2.5 to 2.5V up to 5mA), Fixed (+5V DC up to 10mA)
  • 2x Inverting Amplifier
    • Input signal: Analog up to 4Vpp
    • BW: DC to 400 KHz
    • Phase Response 180 degrees between input and output
  • 1x Transition Detection
    • Input signal: 0 to 5V digital
    • Output Signal: 0 to 5V digital, variable pulse width
  • 4x Buffer with gain
    • Input signal: Analog up to 4Vpp, frequency 400 KHz
    • Gain: unity OR variable (max = x10)
  • 1x Sequence generator
    • Input Signal: Digital 0:5V ,1Hz to 200KHz
    • Number of sequences: 2
    • Sequence Lengths 32, 256, 256, 2048
    • Output Signals: Digital 0:5V (X, Y and Sync)
  • 4x ADDER
    • Input signal: Analog up to 4Vpp
    • BW: DC to 500 KHz
    • Gain: Gain: unity OR variable
  • 1x Tunable phase shifter
    • Frequency Range: 200Hz to 10kHz
    • Control: 2x Phase shift adjustment potentiometers (0:180 Degree each)
    • Input Signal: Analog inputs up to 4Vpp
    • Output Signal: 1 Analog Output
  • 1x Quadrature phase splitter
    • Frequency Range: 200Hz to 10kHz
    • Phase Response 90 degrees between 2 outputs
    • Input Signal: Analog inputs up to 4Vpp
    • Output Signal: 2 Analog Output
  • 2x AM Demodulator
    • Input signal : modulated signal and carrier is analog up to 4vpp
    • BW : analog up to 50KHz
    • Output Signal: 1 Analog Output
  • 1x Dual analog switch
    • Input Signal: 2 of Analog inputs up to 4Vpp
    • BW: up to 400KHz
    • Control Signals: 2 of Digital 0:5V (Up to 100 KHz)
    • Output Signal: 1 Analog Output
  • 2x AM Modulator
    • Input signal: information and carrier is analog up to 4vpp
    • BW: analog up to 50KHz
    • Output Signal: 1 Analog Output
  • 1x Phase locked loop
    • Input Signal: 1 of digital input up to 4Vpp , up to 15KHz
  • 1x Voltage Controlled Oscillator (VCO)
    • Input Signal: digital 0:5V, 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
  • 1x Twin pulse generator
    • Input Signal: Digital 0:5V, up to 50KHz
    • Output Signals: 2 Digital 0:5V (Q1, Q2)
    • Control: Pulse Width (3 to 25 µs), Pulse Delay (Q2-Q1 10 to 120µs)
  • 2x Tunable LPF
    • Input signal: Analog up to 4Vpp
    • Cutoff Frequency: variable (up to 45 kHz)
    • Gain: Adjustable
  • 1x Audio oscillator
    • Frequency Range: adjustable 300Hz to 10kHz
    • Output signal: Analog 4V pk-pk, digital 0:5V
  • 1x LPF 60KHz
    • Input Signals: 1 Analog Signals, up to 4Vpp
    • Cut off frequency: 60KHz
    • Output Signal: 1 Analog Signal unity gain, 1 Analog Signal variable gain
  • 1x FDM filters
    • Input Signal: 1 of Analog inputs up to 4Vpp
    • HPF: Cutoff Frequency variable
    • LPF: Cutoff Frequency variable
    • Output Signal: 2 output analog signal
  • 1x M-Level Encoder
    • Input signal: serial, 0:5V digital, CLK up to 10kHz
    • Pattern: circular or rectangular, 4, 8, and 16 point constellations (selectable)
    • Outputs signal: 2.5Vpk-pk
  • 1x M-Level Decoder
    • Input signal: 2.5Vpk-pk, CLK 0:5V digital up to 10kHz.
    • Offset control: adjustable.
    • Output signal: serial 0:5V digital.
    • Pattern: selectable -circular or rectangular, 4, 8 and 16 point constellations
    • Z-modulation: available in 3 modes, variable level control, 2µs pulse width.
  • 1x Decision maker
    • Input Signal: 2 digital inputs,0:5V
    • Output Signal: 2 digital inputs,0:5V
    • Waveform formats : NRZ-TTL, NRZ-L, NRZ-M, UNI-RZ, BIPOLAR-RZ, RZ-AMI,
    • BIPHASE-L, DICODE, DUOBINARY
    • Clock input: 250Hz to 3.5kHz
    • Z-MODULATION Modes: Three Modes Available
  • 1x Error Counting Utilities
    • Exclusive-or gate module:
    • Input signals: Digital 0:5V
    • Output signal: gated with HI time of the input CLK
    • CLOCK input: 0:5V, up to 40kHz
  • Monostable Module:
    • Operation modes: normal, extended, expanded
    • CLOCK input: 0:5V, up to 15kHz
    • TRIG signal: selectable active level, active HI or active LO, min width 0.2µS
  • 1x Line Code Encoder Module
    • Input Signal: Digital 0:5V
    • Input Clock: Digital 0:5V, 400kHz
    • Output Signal: +/-2Vp-p
  • 1x Line Code decoder
    • Input signal: +/-2Vp-p
    • Clock input: Digital 0:5V, 100kHz
    • Output signal: Digital 0:5V
  • 1x PCM Encoder Module
    • Input signal: 2 Analog +/- 2Vp (Audio Frequency), CLK Digital 0:5V up to 10KHz
    • Output Signal: Serial, 0:5V Data Stream in Standard offset binary format (8bits) Plus Frame
    • Synchronization Pulse (FS).
    • Modes: PCM
  • 1x 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 10KHz.
    • Output signal: 2 Analog +/- 2Vp (Audio Frequency)
    • Modes: PCM
  • 1x Bit Clock Regeneration 1
    • Divide by N:
      • Input signals: 0 to 5V digital, Clock input up to 500KHz
      • Divisors: -1, 2, 4 and 8, switch selectable
    • Transition Detector:
      • Input signal: 0 to 5V digital
      • Output Signal: 0 to 5V digital, variable pulse width and delay
  • 1x Bit Clock Regeneration 2
    • Loop Filter:
      • Input signal: analog signal 4V pk-pk.
      • Cut off: 200Hz
    • Dual Bandpass Filters:
      • Input signal: analog signals 4V pk-pk
      • Internal Clock: 105kHz, crystal derived
      • External Clock: 0 to 5V digitals, 50kHz to 250kHz
  • 1x 100 KHz Channel Filters
    • Max Input Voltage: 5Vp-p.
    • Switch (BPF) Frequency: 100kHz.
    • Switch (LPF) Cutoff Frequency: 100kHz.
    • Switch (Straight - TH): Function as a Buffer
  • 1x Unity delay
    • Max Input Voltage: 2Vp-p.
    • Max Input Frequency: 2kHz.
    • Max Input Clk: 15kHz.
  • 1x Multiple Sequences Source
    • Two independent Exclusive-OR
    • Input signal: 0 to 5 digital signals
    • Output signals: TTL digital 0 to 5V, and bipolar -2 to 2.
    • Sequence output: length 4 to 13 bits
    • Clock Input: up to 100KHz
    • Reset button: included
  • 1x CDMA Decoder
    • Variable digital delay
      • Delay: variable, 1µS to 10µS and 100µS to 1mS
      • Input and Output signals: digital 0:5V
      • CLK Input: more than 100KHz: digital 0:5V
      • Reset: Allowed
      • Sequence Output: TTL digital 0 to 5V
    • Sequence output: length 4 to 13 bits
    • Zero Crossing Detector (comparator)
      • Input signal: up to 4V pk-pk
      • Output: digital 0:5V
    • Lowpass filters
      • Carrier:120khz, 7th Order Butterworth
      • Data: 2khz, 7th Order Butterworth
    • 1x Butterworth filter 4th order
      • Max Input Voltage: 5Vp-p.
      • Cut off Frequency: 5kHz.
    • 1x Buffer
      • Max Input Voltage: 5Vp-p.
      • Max Frequency: 100kHz.
  • 1x RC-LPF
    • Max Input Voltage: 5Vp-p.
    • Cutoff Frequency: 500Hz.
  • 1x Butterworth filter 4th order
    • Max Input Voltage: 5Vp-p.
    • Cut off Frequency: 5 kHz.
  • 1x Limiter
    • Max Input Voltage: 5Vp-p.
    • Gain (0.8), Gain (8), Gain (40)
  • 1x Buffer
    • Max Input Voltage: 5Vp-p.
    • Max Frequency: 100kHz.
  • 1x Inverter
    • Max Input Voltage: 5Vp-p.
    • Max Frequency: 20kHz.
  • 1x 7th Order Linear Phase Filter
    • Max Input Voltage: 5Vp-p.
    • Cutoff Frequency: 1kHz.
  • 2x Dual Adder
    • Max Input Voltage for each Channel: 5Vp-p.
    • Max. Op amp Output Voltage: 20Vp-p.
  • 2x Tripple Adder
    • Max Input Voltage for each Channel: 5Vp-p.
    • Max Gain for each Channel: 2.
  • 3x Unity delay
    • Max Input Voltage: 2Vp-p.
    • Max Input Frequency: 2kHz.
    • Max Input Clk: 15kHz.
  • 2x Sample & Hold
    • Max Input Voltage: 4Vp-p.
    • Max Input Frequency: 2kHz.
    • Max Input Clk: 15kHz.
  • 2x Integrate & Hold
    • Max Input Voltage: 4Vp-p.
    • Max Input Frequency: 5kHz.
    • Max Input Clk: 15kHz.
  • 2x Integrate & dump
    • Max Input Voltage: 4Vp-p.
    • Max Inp ut Frequency: 5kHz.
    • Max Input Clk: 15kHz.
  • 3x Integrator
    • Max Input Voltage: 4Vp-p.
    • Max Input Frequency: 5kHz.
  • 1x Differentiator
    • Max Input Voltage: 4Vp-p.
    • Max Input Frequency: 5kHz.
  • 2x PWM Generator
    • Max Input Voltage: 1 analog 4Vp-p, f = 400 hz
    • Input Clock: 4Vp-p, f = 15K, ramp, symmetry = 50%
  • 1x Multiple Sequences Source
    • Two independent Exclusive-OR
    • Input signal: 0 to 5 digital signals
    • Output signals: TTL digital 0 to 5V, and bipolar -2 to 2.
    • Sequence output: length 4 to 13 bits
    • Clock Input: up to 100 KHz
    • Reset button: included
  • 1x CDMA Decoder
    • Variable digital delay
      • Delay: variable, 1µS to 10µS and 100µS to 1mS
      • Input and Output signals: digital 0:5V
      • CLK Input: more than 100KHz: digital 0:5V
      • Reset: Allowed
      • Sequence Output: TTL digital 0 to 5V
  • Sequence output: length 4 to 13 bits
  • Zero Crossing Detector (comparator)
    • Input signal: up to 4V pk-pk
    • Output: digital 0:5V
  • Lowpass filters
    • Carrier:120khz, 7th Order Butterworth
    • Data: 2khz, 7th Order Butterworth
  • 1x Quadrature Utilities
    • Two Multipliers
      • Max Frequency for the Multiplier: 200kHz
      • Gain Range: 1to2
    • ADDER
      • Max Frequency for the Adder: 100 kHz.
      • Gain Range: 1 to 10
  • 1x FHSS Synthesizer
    • Input signals: digital 0:5 V, 100kHz CLK input
    • Operating Modes: manual, PN Mode
    • Output signals: 8 level analog voltage, sinusoidal from 100kHz to 240kHz
  • 1x Digital Utilities 1
    • Input signal: 0 to 5V digital signal, 0 to 300kHz
    • Dividers with a TWO division ratio 2,4
  • 1x Digital Utilities 2
    • Input signal: 0 to 5V digital signal, 0 to 300kHz
    • Digital inverter
    • Dividers with a TWO division ratio -1,3
  • 2x Buffer
    • Max Input Voltage: 5Vp-p.
    • Max Frequency: 100kHz.
  • 1x Decision maker
    • Input Signal: 2 digital inputs,0:5V
    • Output Signal: 2 digital inputs,0:5V
    • Waveform formats : NRZ-TTL, NRZ-L, NRZ-M, UNI-RZ, BIPOLAR-RZ, RZ-AMI, BIPHASE-L, DICODE, DUOBINARY
    • Clock input: 250Hz to 3.5kHz
    • Z-MODULATION Modes: Three Modes Available
  • 1x Error Counting Utilities
    • Exclusive-or gate module:
    • Inputs signals: Digital 0:5V
    • Output signal: gated with HI time of the input CLK
    • CLOCK input: 0:5V, up to 40kHz
  • Monostable Module:
    • Operation modes: normal, extended, expanded
    • CLOCK input: 0:5V, up to 15kHz
    • TRIG signal: selectable active level, active HI or active LO, min width 0.2µS
  • DSP Module
    • 2x Analog to Digital Converter (ADC) Channels
    • X2 Digital to Analog Converter (DAC) Channels.
    • 100 MHz CPU with FPU and TMU
    • Ability to integrate with Matlab and use simulink code generation techniques.
    • Performs QAM mapping.
    • Implements FFT & IFFT operations for OFDM.
    • IQ signal sampling delay and amplitude are set by adjusting the front panel knobs
    • Include multiple, high speed digital I/O, with physical user controls
    • Operation Modes are selected via program load.
    • A usb interface are used to communicate with the host PC.
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