Additional information
| Brand | Bytronic |
|---|
Pulse Code Modulation Transmitter Trainer
The 7403 is one of a range of digital communication trainers and provides all necessary inputs and connections for students to study pulse code modulation transmission techniques. A communication link can be established by using model 7404, the pulse code modulation receiver.
Experiments:
- Study of pulse code modulation
- Study of A/D conversion
- Study of control signals and their timing
- Study of time division multiplexing
- Study of synchronization by pseudo random code
- Study of error check codes
- Three modes of operation to regenerate original signal
Key Features
- Functional blocks indicated via on board mimics
- Test points
- Crystal controlled clock
- On-board sine generator (synchronized)
- 2 TDM analog channels
- PCM transmitter
- Fast and slow modes for real time operation and data flow examination
- Error check code options (odd-even parity, hamming code)
- 4 switched faults allow different error check code options
Extended WarrantyRelated products
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CommunicationsData Formatting and Carrier Modulation Transmitter
The 7406 data formatting and carrier modulation transmitter trainer is a digital communication system which efficiently explains all communication processing steps involved in digital transmission and reception of analogue signals. Various digital modulation techniques such as ASK, FSK, PSK, DPSK, QPSK etc can be implemented using combinations of the 7406 and 7407 trainers.
In order for this unit to work correctly the 7407 carrier demodulation and data reformatting receiver is required.
Experiments:
- Data formats
- Amplitude shift keying
- Frequency shift keying
- Phase shift keying
- Differential phase shift keying
- Quadrature phase shift keying
- Differential quadrature phase shift keying
Key Features
- Functional blocks indicated via on board mimics
- Test points
- On-board carrier generation circuit (sine waves synchronized to transmitted data)
- On-board in phase and quadrature phase carrier for QPSK modulation
- Different data conditioning formats – NRZ(L), NRZ(M) RZ, biphase (Manchester), biphase (mark), AMI, RB
- FSK, PSK, DPSK, ASK & QPSK and DQPSK carrier modulation
- On-board unipolar to bipolar conversion
- On-board data inverter, clock source and 8-bit data source
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CommunicationsDSB/SSB AM Transmitter Trainer
The 7501 DSB/SSB AM transmitter trainer is part of an analogue communication range which provides all the necessary inputs, test points and connections for experimentation. The 7501 trainer teaches students the basics of DSB/SSB Amplitude modulation and transmission systems through measurement of voltages via the on-board test points.
The 7502 DSB/SSB AM Receiver is required to work with this unit.
Experiments
Automatic Gain Control:
- Double Sideband AM Generation
- To calculate modulation index of DSB wave by trapezoidal pattern
- Double Sideband AM Reception
- Study of Diode Detector
Single Side Band Transmission:
- Signal Sideband AM Generation
- Single Sideband AM Reception.
- Operation of the Automatic Gain Control Circuit (AGC)
Receiver Characteristics (Selectivity, Sensitivity, Fidelity):
- To plot selectivity curve for radio receiver
- To plot sensitivity curve for radio receiver
- To plot fidelity curve for radio receiver
Key Features
- On-board sine generator (synchronized)
- On board DSB/DSBSC modulators
- Crystal controlled carrier frequency generator
- Four Analogue input time multiplexed channels
- Four Envelope detectors
- On board four 4th order low pass filters
- Input-output & test points provided on board
- 8 Switched faults for fault simulation
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