 Analog
Communication Trainers |
|
|
|
Model 7508 |
| |
|
FM Transmitter & Receiver Trainer |
| |
|
Specifications : |
| |
|
The Adtron’s FM
Transmitter & Receiver Trainer is a versatile self - contained stand
alone unit useful in the study and demonstration of reception, DSB
demodulation, SSB demodulation, and output amplifier. The unit consists
of local oscillator, RF amplifier, BFO, Mixer, IF amplifier, detector
audio output and speaker. The unit is housed in an elegant cabinet with
a well spread intelligently designed circuit layout on front panel.
Multi - coloured test points are provided at various stages in the
circuit to observe the waveforms and voltages. It is strongly supported
by a comprehensive instruction manual complete with theory and operating
details. |
| |
|
Salient Features : |
| |
On board variable frequency audio
oscillator |
|
On board FM modulator, detectors,
amplitude limiter and filter |
|
On board mixer amplifier and LPF
amplifier |
| |
|
Technical Specifications : |
| |
Audio Oscillator :Sine wave
with variable frequency and amplitude
(
300 Hz to 3.4 KHz ). |
|
FM Modulator
: 1. Reactance Modulator.
( with
carrier freq. Adj. ) 2.
Varactor Modulator |
Mixer / Amplifier (
with gain adj. ) : Allows
FM input to be amplitude
modulated by a noise prior to demodulation |
|
Transmitter Frequency: 455 KHz |
|
FM Demodulators Detector
: 1. Detuned Resonant |
|
2. Quadrature Detector. |
|
3. Fooster Seeley Detector. |
|
4. Ratio Detector. |
|
5. PLL Detector |
|
Low Pass Filter Amplifier :3.4KHz
cut off frequency with adj. gain. |
|
Switched Faults : 08 Nos. |
|
Test Points : 74 |
|
Interconnections :
4mm Banana sockets and patch cords |
|
Power Requirement : 230V + 10%, 50 Hz, 1f
AC. |
|
Accessories
:1. Detailed Instruction Manual. |
|
2. Set of Patch cords |
| |
|
Experiments : |
| |
Study of 2 types of FM modulators and 5 different
types of
demodulators |
|
Effect of noise on FM transmission and study of tuned
circuits |
|
Separate VCO circuit to demonstrate FM waveforms. |
| |
|
Specifications Are Subject To Change Due To Constant
Developments
Without
Any Prior Notice |
