KL-900C es un sistema comprensible e independiente, adecuado para realizar experimentos de transmisión AM/
ASK y FM/ FSK
     El sistema completo, contiene KL-900C1 y KL-900C2, tiene ocho módulos separados que incluyen:
      ● Módulo AM transmisor y receptor
      ● Módulo FM transmisor y receptor 
      ● Módulo ASK/ AM transmisor y receptor 
      ● Módulo FSK/ FM transmisor y receptor

KL-900C1

AM Experiments
1. Sine Wave / Voice Modulator
2. Modulator Measurement
3. DSBSC / Sine Wave Pattern
4. Modulator Percentage
5. Trapezoid Pattern
6. Voice / Antenna Adjust
7. First IF Amplifier
8. Second IF Amplifier
9. Frequency Transmitter / Receiver & Modulator / Demodulator
10. Music Transmitter & Receiver
 
FM Experiments
1. Voltage Measurements of Varactor Diode
2. Crystal Oscillator Measurements
3. Frequency Multiplier Adjustments (For Third Harmonic)
4. RF Amplifier Tuning Circuit Adjustments (For Third Harmonic)
5. Audio Amplifier Measurements
6. Reference Oscillator Measurements
7. FM IF Amplifier
8. Counter
9. Music Transmitter & Receiver
 
KL-900C2
 
ASK/AM Experiments
1. RF Amplifier Adjustment (Underlined Data are Reference Values)
2. Digital Data Coding (CDMA & Manchester Encoding)
3. Calibration of Transmitter and Receiver
4. Transmitter and Receiver Communication Experiment
5. Analog Transmission of Digital Signals
6. Analog Signal Transmitted by Analog Transmission
7. Music Signal Transmission
 
FSK/FM Experiments
1. Voltage Measurement of Varactor Diode
2. Crystal Oscillator Frequency Measurement
3. Frequency Multiplier Adjustment (Tripler)
4. RF Amplifier Tuned Circuit Adjustment
5. Digital Data Transmission (Direct Sequence & Manchester Encoding)
6. Audio Amplifier Adjustment
7. Calibration of RF Amplifier
8. Receiver Frequency Detector Adjustment
9. Decoding Sequence Adjustment
10. Digital Data Transmission and Receiving (Direct Sequence & Manchester Encoding)
11. Digital Data Transmission and Receiving Example
12. Analog Transmission of Digital Signals
13. Analog Signal Transmitted by Analog Transmission
14. Music Signal Transmission