Basic Communication Trainers

Features:

• Provides Four quadri-phase carrier output generated using IC 7490.
• 100KHz (0°), 100KHz (90°), 100KHz (180°), 100KHz (270°)
• Synchronous data generator using IC 74165.
• Switch selectable simulated data stream generated at approx.1Kb/s rate.
• QPSK -modulator circuit & QPSK -Demodulator.

Features:

• Clock Generation output of 15 KHz.
• Four Nos. of Data Clock using IC 7490.
• FSK -modulator circuit using IC 74163 and IC 7400
• FSK -Demodulator using IC TL084.

Features:

• Programmable Cyclic 8-bit Word Generator.
• Sine waveform output maximum up to 30 KHz.
• ASK -modulator circuit using IC 4066.
• ASK -Demodulator using IC TL084.
• Eight LED display to verify the input data.

Features:

• Sine waveform output from 10KHz. - 20 KHz.
• Four Nos. of Data Clock using IC 7490.
• PSK -modulator circuit using IC 4051 and IC TL084.
• PSK -Demodulator using IC 7486.

Features:

• Provides Sine waveform output Frequency variable from 20 Hz.-20 KHz
• Carrier generation output of 40 KHz and Max. 2V p-p.
• AM-modulator circuit using IC3086.
• AM-Demodulator using Diode detector method.

Features:

• Provides Sine waveform output Frequency variable from 100 Hz.-1.5 KHz
• Carrier Generation variable output of 6KHz to 50KHz
• PAM -modulator circuit using IC4066
• PAM -Demodulator using Low Pass Filter .

Features:

• Provides Sine waveform output variable from 1KHz.-1.2 KHz.
• Sampling Frequency generation output of 34 KHz.
• PWM -modulator circuit using IC555
• PWM -Demodulator using Low Pass Filter .

Features:

• Provides Sine waveform output variable from 1KHz.-1.2 KHz.
• Sampling Frequency generation TTL output of 34 KHz.
• PPM -modulator circuit using IC555
• PPM -Demodulator Low Pass Filter.

Features:

• Provides Dual Sine waveform output of 125 Hz & 200 Hz with variable Amplitude
• Sampling Frequency generation TTL output of 40 KHz.
• Two channel multiplexing & de-multiplexing
• TDM -modulator circuit using IC4066 & Demodulator using IC 4066 .
• On-board 4th order Low pass filter with cut-off frequency of 3.4khz.

Features:

• Provides Dual Sine waveform output of 30 Hz with variable Amplitude
• Sampling Frequency generation TTL output of 25 KHz.
• PCM modulation using 74163 & ADC0800 displayed in 8 Led’s
• PCM demodulation using 74165 & DAC0800 displayed in 8 Led’s.
• On-board Low pass filter.

Features:

• Sine waveform output of 250Hz.
• Square waveform output of 20 KHz.
• DELTA -modulator circuit using IC 74193 UP DOWN Counter and DAC-0800.
• DELTA -Demodulator using IC TL084.

Features:

• Sine waveform output variable from 10KHz. - 20 KHz.
• Four Nos. of Data Clock using IC 7490
• DPSK -modulator circuit using IC TL084 and Two Nos. of IC 4051 .
• DPSK -Demodulator using IC 7486 and IC 74164.