Description
Frequency modulation demodulation techniques demonstrates frequency modulation techniques. Frequency modulation using varactor modulator, using reactance modulator operation of detuned resonant circuits& operation of phase lock loop detector, operation of radio detector can be studied efficiently.
Specifications:-
| Audio Oscillator | With adjustable Amplitude & Frequency (300 Hz – 3.4 Khz) |
| Audio Oscillator | With adjustable Amplitude & Frequency (300 Hz – 3.4 Khz) Frequency (300 Hz – 3.4 Khz) |
| FM Modulator | 1) Reactance Modulator (with carrier Frequency adjustment) |
| 2) Varactor Modulator (with carrier Frequency adjustment) | |
| Mixer / Amplifier | 1 no. (With Gain adjustment) Allows FM input signal to be amplitude modulated by a noise input prior to demodulation. |
| Transmitter Output Frequency | 455 KHz |
| FM Demodulator | 1) Detuned Resonant Detector |
| 2) Quadrature Detector | |
| 3) Foster -Seeley Detector | |
| 4) Ratio – Detector | |
| 5) Phase Locked Loop Detector | |
| Low Pass Filter | 3.4 KHz Cut off Frequency Amplifier (with adjustable gain) |
| Amplitude Limiter | 1 no. |
| Switched Faults | 8 nos. |
| Interconnections | 2 mm Banana Sockets |
| Test points | 20 nos |
| Power Supply | 230 V 10%, 50 / 60 Hz |
| Power Consumption | 3 VA approximately |
| Operating Conditions | 0-40 C, 80% RH |
| Weight | 3 Kg approximately |
| Dimensions (mm) | W 405 x D 275 x H 105 |
| Learning material | CD (Theory, procedure, reference |
| Included Accessories | Patch cord – 4 nos., Mains cord – 1 no., Learning material (CD) – 1 no. |
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