quick overview :

Digital Communication Trainer

• The Communication Trainer Consists Of The Following Modules :

Line Code Encoder and Decoder Module :

• Uipolar and Bipolar NRZ Signal Encoder & Decoder
• Type of Signal : TTL,  Data rate : 1 kbps ~ 4 kbps
• Unipolar and Bipolar RZ Signal Encoder & Decoder
• Type of Signal : TTL,  Data rate : 1 kbps ~ 2.5 kbps,  CLK : 2KHz ~ 5KHz
• AMI Signal Encoder & Decoder :
• TTL,  Data rate : 50 bps ~ 250 bps,  CLK : 100Hz ~ 500Hz
• Manchester Signal Encoder & Decoder
• Type of Signal : TTL,  Data Rate : 100 bps ~ 400 bps,  CLK : 200Hz ~ 800 Hz

 PWM Modulator and Demodulator Module :

• uA741 Pulse Width Modulator
• Carrier signal : 1.5KHz ~ 2KHz,  Audio signal : 500 Hz
• LM555 Pulse Width Modulator
• Carrier signal : 5KHz ~ 10KHz,  Audio Signal : 1 KHz
• Pulse Width Demodulator :
• Carrier Signal : 5KHz ~ 6KHz,  Audio Signal : 500Hz ~ 700Hz

PCM Modulator and Demodulator Module :

• PCM Modulator & Demodulator
• Built in Simple Frequency : 8 KHz
• Built in Operation Frequency : 2048 KHz

Delta Modulator and Demodulator Module :

• Delta Modulator & Demodulator
• Type of Sample Signal : TTL CLK
• Sample Frequency : 32KHz ~ 256KHz  &  Audio Signal : 1KHz ~ 3KHz

Adaptive Delta Modulator and Demodulator Module :

• Adaptive Delta Modulator & Demodulator
• Type of Sample Signal : TTL CLK
• Sample Frequency : 32KHz ~ 128KHz  &  64KHz ~ 256KHz
• Audio Signal : 500Hz ~ 1KHz

ASK Modulator and Demodulator Module :

• XR 2206 ASK Modulator
• Carrier signal : 20KHz,  Data Rate : 1 kbps
• MC 1496 ASK Modulator
• Carrier Signal : 20KHz ~ 100KHz,  Data Rate : 2 kbps
• Asynchronous ASK Demodulator
• Carrier Signal : 20KHz,  Data Rate : 200bps ~ 1kbps
• Synchronous ASK Demodulator
• Carrier signal : 100KHz, Data Rate : 200 bps ~ 2 kbps

FSK Modulator and Demodulator Module :

• XR 2206 & LM566 FSK Modulator & Demodulator
• Data rate : 200 bps ~ 400 bps

PSK Modulator and Demodulator Module :

• PSK Modulator & Demodulator
• Carrier Signal : 100KHz, Data Rate : 200 bps

Function Generator & DC Power Supply Module :

• Waveforms : Sine, Triangle, Square, TTL Pulse
• Amplitude : >10Vpp
• Impedance : 50Ω±10%
• Duty Control : 30% ~ 60%
• Display : 6 Digit LED Display
• Frequency range : 10Hz to 100KHz (4 ranges), 100Hz to 1MHz (4 ranges)
• Frequency control : Separative Coarse and Fine tuning
• Constant voltage output : ±5V, ±12V
• Variable voltage output : 0V ~ ±15V
• Power Source : 220 ~ 230 V AC, 50Hz, 1 Phase