| TRAINING KITS FOR COMMUNICATION LAB |
Study of Transmitter & Receiver using Fiber Optics Cable
To
construct a Optical Transmitter and calculate its Output Power.
Transmission of Signal through Fiber Optic Cable. To construct a Optical
Receiver and calculate its output power. To study the Attenuation of
Signal when transmitted from Transmitter to Receiver end. Instrument
comprises of DC Power Supply 6VDC and 3VDC. Preamplifier stages consists
of MIC (Microphone), Photodetector, Transistors (548) and biasing network
Resistance and Capacitors. Power amplifier stages with impedance matching
transformers (Driver Transformers, Transistors (8550) and biasing network
of Resistances and Capacitors. Output section having LEDs (Light Emitting
Diodes) and speaker. Fiber optic cable for transmission of signal. |
Study of Amplitude Modulation & Demodulation.
Measurement
of Amplitude Modulation Index (Depth of modulation), side band frequencies
(upper side band & lower side band) and Frequency of demodulated
signal.
Instrument consists of DC Regulated Power Supply , Sine wave Oscillator
100 Hz - 1KHz Frequency Circuit diagram drawn & Components placed on
the panel. Connections of Supplies & Components brought on terminal
Accessories : RF Signal Generator TE-92 and CRO TE-96. |
Study of Frequency Modulation & Demodulation
Measurement
of Frequency Modulation Index (Depth of modulation), side band frequencies
(upper side band & lower side band) and Frequency of demodulated
signal.
Instrument consists of DC Power Supply, Square wave Oscillator 1KHz
Frequency Output, Circuit diagram dream & Components placed on panel.
Opt. CRO TE-96 & RF Signal Generator TE-92 |
Study of Frequency Modulation
Measurement
of Frequency Modulation Index (Depth of modulation) Comprises of DC Power
Supply, since wave Oscillator with 1KHz Frequency Output, Circuit diagram printed & Components placed on the
panel. Connections brought on terminals. Opt. CRO TE-96 |
Study of Pulse Amplitude Modulation & Demodulation
Measurement
of Pulse Amplitude Modulation Index (Depth of modulation) and Frequency of
demodulated signal.
Comprises
of DC Regulated Power Supply, AF Sine wave, carrier wave oscialltor using
IC 555, Circuit diagram Printed & Components mounted behind the panel.
Connections of Supplies & Components brought on terminals.
Opt.
CRO TE-96.
a.Study of Pulse Amplitude Modulation
b.Study of Pulse Amplitude Demodulation
c.
Study of Pulse Width Modulation
& Demodulation
Modulation of Carrier Signal in Pulse Width Mode and Frequency of demodulated signal. |
Study of Pulse Position Modulation & Demodulation
Modulation
of Carrier Signal in Pulse Position Mode and Frequency of demodulated
Sginal. Instrument comprises of DC Regulated Power Supply 5
VDC/150mA, AF Sine wave Oscillator with 100 Hz. 10KHz Frequency Output, RF
Oscillator using IC 555, Circuit diagram printed & Components mounted
behind the panel. Connections of supplies & Components brought out at
4mm Sockets.
Acess. CRO TE-96 |
Study of Pulse Position & Pulse Width Modulation
Modulation
of Carrier Signal in Pulse Position & Pulse Width Mode using External
AF Signal and Frequency of Demodulated Signal.
Instrument
comprises of DC Regulated Power Supply 5 VDC/150mA, Carrier Wave
Oscillator using IC 555, Circuit diagram printed & Components mounted
behind the panel. Connections of Supplies & Components brought out at
4mm Sockets.
Opt.
Audio Frequency Function Generator TE-93 and CRO TE-96. |
Study of Phase Locked Loop (PLL) Circuit using IC 565
To
study the phase locked loop circuit and calculate the lock range Frequency
and capture range Frequency. Instrument comprises of Two DC Regulated
Power Supplies, IC 565, combination of Resistance, Capacitors & One
Potentiometer connected inside & Connections brought out at front
panel.
Opt.
Audio Frequency Function Generator TE-93 and CRO TE-96. |
| |
| ACTIVE & PASSIVE FILTER CIRCUITS
(STUDY OF FREQUENCY RESPONSE) |
Circuit Diagram for all the filters is Printed on Panel and components placed along, Connections of important points brought out at Sockets. Require Audio Frequency Function Generator TE-93 & CRO TE-96.
Study of "T" type Passive Low Pass, High Pass, Band Pass & Band Stop; Filters
Study of "T" type Passive Constant K High Pass Filter
Study of M-Derived "T" type Passive Low Pass Filter
Study of M-Derived "T" type Passive High Pass Filter
Study of "p" type Passive Low Pass, High Pass, Band Pass & Band Stop Filter
Study of "p" type Passsive Low Pass Filter
Study of "p" type Passive Band Pass Filter
Study of "p" type passive High Pass Filter
Study of "p" type Passive Constant K High Pass Filter
Study of Twin-T Active Notch Filter using Op-Amplifier
Study of Active Filters (Low Pass, IInd order Low Pass, & High Pass Filter) using Op-Amplifier.
Note : All the Passive Filter Circuit Kits has been prepared using Passive Components (e.g. using Resistances, Capacitors & Inductances). |
Standard Filters
Set of Eight Filters Optical
Set of Five Filters Optical
Set of Three Filters Optical |
Transformer High Voltage
For Gas discharge tube. 2.5, 3, 3.5, 4KV. |
Decade Inductance Box
Very low contact resistance band switch mounted on a bakelite panel and teak wood case.
Single Dial .1 H to 1 H
2 Dials .01, H to 1.1 H
3 Dials .01 H to 11.1 H
4 Dials .001 H to 11.1 H
Fixed inductance 100 mH, 1H, 10H, 20G |
Decade Capacitance Box
Easy operated band switch mounted on bakelite panel, Housed in teak wook case.
Single Dial .1 mfd to 1 mfd
2 Dials .01 mfed to 1.1 mfd
3 Dials .001 mfd to 1.11 mfd
4 Dials .001 mfd to 11.11 mfd |
Decade Resistance Box
minimum contact resistance, mounted on bakalite sheet with terminals
Single Dial 1K Ohms to 10K Ohm
2 Dials 10 Ohms to 1000 Ohms
3 Dials 1 Ohms to 1000 Ohms
4 Dials 1 Ohms to 10000 Ohms |
