Pulse Code Modulation & Demodulation

Description

Pulse Code Modulation & Demodulation

Product Code: GE432

Objective:

• To study the PCM Modulation & Demodulation

• Built i n TTL Clock Generator 2 0 KHz

• Modulating signal Generator 100Hz to SKHz

Technical Specifications:

• To study the PCM Modulation & Demodulation

• Mode of operation : Low: 9.5V, 30-190Hz& High 9.5V, 300Hz-1 .8KHz

• 8-BitADCand8-BitDAC

• Built in TTL Clock Generator 20 KHz

• Modulating signal Generator 100Hz to 5KHz

• PCM Encoder & PCM Decoder

• Bipolar to Unipolar conversion Modes: Slow: 500KHz, Fast: 1.999MHz

• Data display with LED's

• Variable voltage: +5V to -SV

Delta Modulation & Demodulation

Product Code: GE433

Objective:

• To study the Delta modulation & demodulation technique

• Built in TTL Clock Generator

Technical Specifications:

• To study the Delta modulation & demodulation technique

• Built in TTLClock Generator

• Modulating signal Generator 1 KHz with variable amplitude

• Delta Modulator

• Delta Demodulator

• DCSupply: Builtin IC regulated powersupplies

Analog Fiber Optic Trainer

Product Code: GE434A

Objective:

• Voice transmission through optical fiber cable.

• To study transmitter circuit & calculate its output power

• To study receiver circuit & calculate itsinputpower

• To study the attenuation of signal between transmitter & receiverend.

• Measurement of numerical aperture

Technical Specifications:

In built ic based Fixed de regulated power supply + 6vdc. Pre amplifier stage consists of mic (microphone), photo-detectors, transistors^ biasing network of resistance & capacitors. Power amplifier stages consists of impedance matching transformers, transistors & biasing network of resistance & capacitors. Output section having led & speaker, fiber optic cable For transmission of signal. Circuit diagram is printed on glass epoxy peb & different combination of resistance & test point are brought out on front panel.

Technical Details