ACL-AM: Amplitude Modulation Transmitter Kit

Audio oscillator (sine wave generator)

Frequency   : 100Hz ~ 10KHz·      
Amplitude   : 0 ~ 2 Vpp          

Voltage controlled oscillator (VCO)

Output signal: Sine wave

Frequency range :
1) 400KHz ~ 500KHz                                        
2) 400KHz ~ 1500KHz

Amplitude : 0 ~ 2Vpp

Output impedance : 50OHM

Ceramic filter
Center frequency: 455 kHz
Bandwidth: 10 KHz +/- 3 KHz
Band-Pass Filter: 1.455 KHz - central frequency.                              
                                         :10 +/-3 KHz Bandwidth

Balance Modulator 1

Modulation: Amplitude modulation, Double sideband, single sideband (USB and LSB).

Carrier Input: 1-1000 KHz.

Modulation Input: 0.1 - 100 KHz.

Carrier Null: Adjustable.

Output Amplitude : Adjustable.

Balance Modulator 2

Modulation: Amplitude modulation, Double side band,single side band (USB and LSB).

Carrier Input: 1 MHz.

Modulation Input  : 400-500KHz.

Carrier Null: Adjustable.

Output Amplitude: Adjustable.

Output amplifier

Gain adjustable connected to antenna.

Antenna

MW Coil

Switch Faults

4 switch faults are provided on board to study different effects on circuit.

Interconnection

2 mm PCS2
Test Points: Various test points to observe signals on an oscilloscope.

Power supply

GND,+5V, +12V, -12V

Study of double side band AM generator.

Study of single side band AM generator.

Study of adjustment of transmitter tuned circuits.

Voice transmission with DSB/SSB AM transmission.

Effect of switch faults.