Bms/ece/manuals/CL

From Indian Graduate Students Organizations

Manual for Communication Lab for 5th Semester.

Contents 1 Active low-pass & High-pass filters (second order) 1.1 Low Pass Filter 1.2 High Pass Filter 2 Active band pass & band elimination filters (second order) 2.1 Band Pass Filter 2.2 Band Elimination Filter 3 Class C tuned amplifier 4 Collector AM & demodulation using envelope detector (narrow band) 4.1 Modulation 4.2 Envelope Detection 5 Balanced modulation & SSB generation, (using diodes or using I(1496)) 6 Attenuators: T, n, O-pad & lattice types 6.1 Symmetrical T type 6.2 Asymmetrical T type 6.3 Symmetrical type 6.4 O-pad type 6.5 Lattice type 7 Frequency modulation & demodulation, (using IC 8038 & PLL) 8 Radio receiver characteristics: sensitivity,selectivity & fidelity 9 Pre-Emphasis & De-Emphasis circuits 9.1 Pre-Emphasis 9.2 De-Emphasis 10 AM-IC circuit (modulation & demodulation using IC) 11 Pulse Amplitude Modulation (PAM) 11.1 Modulation 11.2 Demodulation 12 Pulse Phase Modulation 12.1 Modulation 12.2 Demodulation 13 Pulse Width Modulation 13.1 Modulation 13.2 Demodulation 14 Transistor mixer - up/down conversions

[edit] Active low-pass & High-pass filters (second order)

[edit] Low Pass Filter

[edit] High Pass Filter

[edit] Active band pass & band elimination filters (second order)

[edit] Band Pass Filter

[edit] Band Elimination Filter

[edit] Class C tuned amplifier

[edit] Collector AM & demodulation using envelope detector (narrow band)

[edit] Modulation

[edit] Envelope Detection

[edit] Balanced modulation & SSB generation, (using diodes or using I(1496))

[edit] Attenuators: T, n, O-pad & lattice types

[edit] Symmetrical T type

[edit] Asymmetrical T type

[edit] Symmetrical type

[edit] O-pad type

[edit] Lattice type

[edit] Frequency modulation & demodulation, (using IC 8038 & PLL)

The ICL8038 waveform generator is a monolithic integrated circuit capable of producing high accuracy sine, square, triangular, sawtooth and pulse waveforms with a minimum of external components. The frequency (or repetition rate) can be selected externally from 0.001Hz to more than 300kHz using either resistors or capacitors, and frequency modulation and sweeping can be accomplished with an external voltage.

Have a look at the datasheet here

[edit] Radio receiver characteristics: sensitivity,selectivity & fidelity

[edit] Pre-Emphasis & De-Emphasis circuits

[edit] Pre-Emphasis

[edit] De-Emphasis

[edit] AM-IC circuit (modulation & demodulation using IC)

[edit] Pulse Amplitude Modulation (PAM)

[edit] Modulation

[edit] Demodulation

[edit] Pulse Phase Modulation

[edit] Modulation

[edit] Demodulation

[edit] Pulse Width Modulation

[edit] Modulation

[edit] Demodulation

[edit] Transistor mixer - up/down conversions