SUPPLY OF LAB EQUIPMENTS

Ask modulation and Demodulation kit Specifications: • Message Signal1: 8-bit variable data,amplitude 5V. • Message Signal 2: Debounced data, amplitude low (0) and high (5 V). • Message Signal 3: Fixed data 25 kHz, 12.5 kHz, 6.25 kHz, 3.12 kHz, amplitude 5 V. • Carrier signal: Sine wave, frequency 200 kHz, amplitude 5 V. • Modulator type: Switching modulator using analog switch / transistor switching IC. • Demodulator: Envelope detector and LPF. • Comparator: LM311 based. • Supply voltage (board): +12 V, +5 V dc. • Supply current: 100 mA minimum. • Input voltage: 230 V ac, 50 Hz. • Interface connectors: 2 mm banana socket.

Fiber Optic Communication Trainer Kit Specifications: Power Supply: • 230 V ac ±10%, 50 Hz mains operation. • Built-in regulated power supply. Optical Transmitters: • LED transmitter: 660 nm. Optical Receivers: • Phototransistor / PIN photodiode receiver. • Built-in signal conditioning and amplifier circuits. • Audio power amplifier with speaker/headphone output. • Comparator / pulse shaping circuit for digital signal recovery. • Test points for CRO observation and signal monitoring. Fiber Media: • Multimode Plastic Optical Fiber (POF). • Fiber patch cords with connectors. Signal Sources: • Built-in sine wave generator. • Built-in square wave / digital pulse generator. • Voice signal input through built-in microphone/audio source. Trainer Features: • Separate transmitter and receiver sections. • On-board test points for signal observation. • LED indicators for signal monitoring. • Fault simulation facility. • Compact tabletop modular design. • Circuit diagram printed on PCB. Bandwidth: • Analog bandwidth: up to 350 kHz. • Digital bandwidth: up to 2.5 MHz. Controls: • Variable signal amplitude control. • Variable frequency control. • Optical intensity adjustment. Standard Accessories: • Patch cords and connectors. • Power cord. • Audio connecting cable. • User manual.