3-G-055: SSB Transmitters
3-55G1:
What will occur when a non-linear amplifier is used with a single-sideband phone transmitter?
Distortion.
Reduced amplifier efficiency.
Increased intelligibility.
Sideband inversion.
3-55G2:
To produce a single-sideband suppressed carrier transmission it is necessary to ____ the carrier and to ____ the unwanted sideband.
Cancel, filter.
Filter, filter.
Filter, cancel.
Cancel, cancel.
3-55G3:
In a single-sideband phone signal, what determines the PEP-to-average power ratio?
The speech characteristics.
The frequency of the modulating signal.
The degree of carrier suppression.
The amplifier power.
3-55G4:
What is the approximate ratio of peak envelope power to average power during normal voice modulation peak in a single-sideband phone signal?
2.5 to 1.
1 to 1.
25 to 1.
100 to 1.
3-55G5:
What is the output peak envelope power from a transmitter as measured on an oscilloscope showing 200 volts peak-to-peak across a 50-ohm load resistor?
100 watts.
1,000 watts.
200 watts.
400 watts.
3-55G6:
What would be the voltage across a 50-ohm dummy load dissipating 1,200 watts?
245 volts.
692 volts.
346 volts.
173 volts.
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