FM Transmitter & Receiver Trainer For Electrical Lab Training Description and Specifications for Lab Tenders
FM transmitter and receiver trainer has
been designed.
provide practical and experimental
knowledge of frequency modulation / demodulation technique as
practically implemented in analog communication system on a single
P.C.B. of size 300x400mm.
1. Object:
To Study Theory of Frequency Modulation & Demodulation:
01. Frequency modulation via varactor / reactance modulation.
02. Frequency demodulation via detuned resonant / ratio / qudrature / foster - seeley / phase locked loop detector.
03. Separate VCO circuit to demonstrate FM waveform.
2. Feature:
The board consists of the following built-in parts:
01. POWER SUPPLY : ± 12DC IC Regulated power supply.
02. FM Modulating signal generator : Sine wave
Frequency Range : 300 Hz to 3.4 Khz
Amplitude Range : 0 to 5 Vpp.
03. Modulator Type :
Varactor modulator (With carrier frequency adjustment)
Reactance Modulator (With carrier frequency adjustment)
04. Demodulator :
:Detuned resonant detector.
: Quadrature detector
: Foster - Seeley Detector
: Ratio Detector
: Phase locked loop Detector
05. Mixer/Amplifier :
1 No. (With gain adjustment) Allows FM input signal to be amplitude modulated by a noise input to demodulation.
06. Low pass Filter :
3.4 KHz.:Cut of frequency Amplifier (with adjustable gain)
07. VCO Circuit :
FM Wave form demonstrate
08 Test Point : 78
09. Power supply requirement :
: 230VAC, 50 Hz.
10. On Board Switched Faults : 8 Nos.
11. On Board Amplitude limiter with Amplitude control.
12. Input - Output and Test points provided on board.
13. A self contained Trainer.
14. Effect of noise on the detection of FM signal may be investigated.
Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections/ observation of waveforms.
Strongly
supported by detailed Operating Instructions, giving details of Object,
Theory, Design procedures, Report Suggestions and Book References.
Weight : 6 Kg. (Approx.)
Dimension : W 412 x H 150 x D 310
Other Apparatus Required:
Cathode Ray Oscilloscope 20MHz.
Patch Cords