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ATT - (ET) WEEK 13 Questions and Answers 100%
Verified UPDATED!!!
Amplitude Modulation (AM)
may be defined as varying the carrier amplitude with the
instantaneous changes of the audio signal.
Heterodyning
is the process of changing the frequency of a signal to another
frequency without losing the intelligence from the original
frequency.
Local Oscillator
the AM receiver is always turned to 455kHz above the tuned
RF.
455kHz above tuned RF
the local oscillator in the AM receiver is always tuned to
_________.
455kHz
The frequency at the output of the IF amp should be within
_______.
PLL System
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consists of phase detector, frequency counter/divider VCO and
loop filter.
Automatic Gain Control (AGC)
is the purpose of the circuitry is to eliminate fluctuations in the
output when the RF input varies.
PLL and VCO
Indirect synthesis uses ________.
USB and LSB
The transmitted signals at the _____ are always 180° out of
phase.
Standard SSB
Independent Sideband (ISB)
Vestigial Sideband
SSB transmission come in variety of formats:
Standard SSB
is the form of SSB commonly used by amateur radio operators.
Independent Sideband (ISB)
is a form of SSB commonly used by the military.
Vestigial SSB
is the form of SSB that is used with television video signals.
ATT - (ET) WEEK 13 Questions and Answers 100%
Verified UPDATED!!!
Amplitude Modulation (AM)
may be defined as varying the carrier amplitude with the
instantaneous changes of the audio signal.
Heterodyning
is the process of changing the frequency of a signal to another
frequency without losing the intelligence from the original
frequency.
Local Oscillator
the AM receiver is always turned to 455kHz above the tuned
RF.
455kHz above tuned RF
the local oscillator in the AM receiver is always tuned to
_________.
455kHz
The frequency at the output of the IF amp should be within
_______.
PLL System
, 2|Page
consists of phase detector, frequency counter/divider VCO and
loop filter.
Automatic Gain Control (AGC)
is the purpose of the circuitry is to eliminate fluctuations in the
output when the RF input varies.
PLL and VCO
Indirect synthesis uses ________.
USB and LSB
The transmitted signals at the _____ are always 180° out of
phase.
Standard SSB
Independent Sideband (ISB)
Vestigial Sideband
SSB transmission come in variety of formats:
Standard SSB
is the form of SSB commonly used by amateur radio operators.
Independent Sideband (ISB)
is a form of SSB commonly used by the military.
Vestigial SSB
is the form of SSB that is used with television video signals.
