Additional information
| Brand | Bytronic |
|---|
Pulse Amplitude Modulation/Demodulation Trainer
The unit is one of a range of digital communication trainers and provides all necessary inputs and connections for students to study pulse amplitude modulation / demodulation techniques, time division multiplexing and demultiplexing of signals and signal reconstruction.
Experiments:
- Study of pulse amplitude modulation technique
- Study of time division multiplexing and demultiplexing
- Study of PLL as frequency multiplier to generate clock from sync signal
- Study of effect of varying duty cycle of sampling pulse on signal reconstruction
- Study of 3 modes of operation to regenerate original signal
- 3 connections between transmitter and receiver (clock, sync & information)
- 2 connections (sync & information). Clock regenerated at receiver
- 1 connection (information only). Clock and sync derived at receiver
Key Features
- Crystal controlled Clock
- On-board signal generator (Synchronized) DC and Sine
- On-board pulse generator
- Demonstrates sampling and reconstruction as per Nyquist criterion
- 4 Analog input channels (TDM-PAM)
- Four switch selectable sampling frequencies
- Pulse duty cycle selectable
- Generation of clock at receiver by PLL system
- 4th order Butterworth L. P. Filters
Extended WarrantyRelated products
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CommunicationsSampling and Reconstruction Trainer
The unit is one of a range of digital communication trainers and provides all necessary inputs and connections for students to study signal sampling and reconstruction techniques.
Experiments:
- Sampling and reconstruction of signal.
- The effect of II order and IV order low pass filter on reconstructed signal.
- The effect of sample amplifier and sample and hold amplifier on reconstructed signal.
- The Nyquist criteria for sampling and reconstruction of signal.
- The effect of sample /hold circuit on reconstructed signal
- Effect of sampling pulse duty cycle on the reconstructed signal in sample and sample hold output.
- Comparison responses of 2nd order and 4th order LPFs.
- Verification sampling and reconstruction data transmission scheme for
Key Features
- Functional blocks indicated via on board mimics
- Crystal controlled pulse generator
- Demonstrates sampling and reconstruction as per Nyquist criterion
- 6 Selectable sampling Frequencies
- Sampling Pulse Duty Cycle Selectable
- Internal / External sampling input selectable
- Separate Sample and sample/Hold outputs
- On-board 2nd order and 4th order low pass filters
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CommunicationsAdvanced Fibre Optic Trainer
The Bytronic AFOT Fibre Optic Communication trainer provides a full duplex method of transmitting information from one place to another by sending pulses of light through an optical fibre, the light forms an electromagnetic wave that is modulated to carry information. The advanced fibre optics communication trainer is designed to learn the communication techniques in Fibre Optics.
The trainer demonstrates properties of Fibre Optics Transmitter and Receiver, characteristics of Fibre Optic cable, different types of Modulation/Demodulation techniques via fibre link. It can also be used to demonstrate various digital communication techniques.
Experiments:
- Fibre optic analogue link
- Fibre optic digital link
- Intensity modulation technique using an analogue input signal
- Intensity modulation technique using a digital input signal
- AM system using analogue and digital inputs
- FM and PWM modulation systems
- Propagation loss in optical fibre
- Bending loss in optical fibre
- Measurement of numerical aperture
- Characteristics of E-O converter (LED)
- Characteristics of F.O communication link
- Measurement of power using optical power meter
- Characteristics of E-O converter using optical power meter
- Propagation loss using optical power meter
- Setting of fibre optic voice link using intensity modulation, AM-FM and PWM
- Study of switched fault in AM-FM and PWM systems
- Full duplex computer communication using RS232 ports and software
- BIT rate measurement
- Determining the density of the fibre optic link
- Determination of power margin (power budget)
Key Features
- Full duplex analogue and digital transmitter – receiver
- 660nm and 950nm channels with transmitter and receiver
- AM-FM-PWM modulation and demodulation
- On board function generator
- Crystal controlled clock
- Functional blocks indicated via on-board mimic
- Input-output and test points provided on board
- On board voice link
- Numerical aperture measurement jig and mandrel for bending loss included
- Switched faults on transmitter and receiver
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