Font size
WorksheetsBlock 4 - 1H - Demodulation
Total questions: 10
Worksheet time: 5mins
Demodulation is the...
The process of extracting the intelligence signal from the carrier signal
The process of extracting the current from the voltage
The process of extracting the gnomes from their homes
The process of extracting capacitance from capacitors
In AM, we use ____ to accomplish detection
Diode rectifier
Diode amplifier
Diode demodulation
Diode envelopes
Diode rectifiers are also known as...
Envelope detectors
Envelope messengers
Envelopes
Letter detectors
Demodulators must meet 3 requirements, what are they?
Must be sensitive to the type of modulation applied at the input
Must be nonlinear
Must provide filtering
Must have three resistor
Must have three capacitors
What is the main advantage of envelope detectors?
Cheap
Reliable
Determined
Hard working
For FM demodulation, we use...
(a)
Discriminators are sensitive to what?
Sticks and stones
Frequency
Amplitude
Capacitance
Inductance
Tuned transformers are in...
Zener diodes
Discriminators
Capacitors
Detectors
The transformer is tuned to...
The carrier center frequency
The intelligence center frequency
The composite frequency
Foster-Steeley operates using a phase difference between signals. What is the phase difference?
0 degrees
90 degrees
180 degrees
360 degrees
