A-003-02: PEP, PEP relative to average power, PEP relative to voltage across load
A-003-02-01:
The power supplied to the antenna transmission line by a transmitter during an RF cycle at the highest crest of the modulation envelope is known as:
peak-envelope power
mean power
carrier power
full power
A-003-02-02:
To compute one of the following, multiply the peak-envelope voltage by 0.707 to obtain the RMS value, square the result and divide by the load resistance. Which is the correct answer?
PEP
PIV
ERP
power factor
A-003-02-03:
Peak-Envelope Power (PEP) for SSB transmission is:
Peak-Envelope Voltage (PEV) multiplied by 0.707, squared and divided by the load resistance
peak-voltage multiplied by peak current
equal to the rms power
a hypothetical measurement
A-003-02-04:
The formula to be used to calculate the power output of a transmitter into a resistor load using a voltmeter is:
P = E^2/R
P = EI/R
P = EI cos 0
P = IR
A-003-02-05:
How is the output Peak-Envelope Power of a transmitter calculated, if an oscilloscope is used to measure the Peak-Envelope Voltage across a dummy resistive load?
PEP = Peak-Envelope Power
PEV = Peak-Envelope Voltage
Vp = peak-voltage
RL = load resistance
PEP = [(0.707 PEV)(0.707 PEV)] / RL
PEP = [(Vp)(Vp)] / (RL)
PEP = (Vp)(Vp)(RL)
PEP = [(1.414 PEV)(1.414 PEV)] / RL
A-003-02-06:
What is the output PEP from a transmitter if an oscilloscope measures 200 volts peak-to-peak across a 50-ohm dummy load connected to the transmitter output?
100 watts
400 watts
1000 watts
200 watts
A-003-02-07:
What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50-ohm dummy load connected to the transmitter output?
625 watts
1250 watts
2500 watts
500 watts
A-003-02-08:
What is the output PEP of an unmodulated carrier transmitter if a wattmeter connected to the transmitter output indicates an average reading of 1060 watts?
1060 watts
2120 watts
1500 watts
530 watts
A-003-02-09:
What is the output PEP from a transmitter, if an oscilloscope measures 400 volts peak-to-peak across a 50 ohm dummy load connected to the transmitter output?
400 watts
200 watts
600 watts
1000 watts
A-003-02-10:
What is the output PEP from a transmitter, if an oscilloscope measures 800 volts peak-to-peak across a 50 ohm dummy load connected to the transmitter output?
1600 watts
800 watts
6400 watts
3200 watts
A-003-02-11:
An oscilloscope measures 500 volts peak-to-peak across a 50 ohm dummy load connected to the transmitter output during unmodulated carrier conditions. What would an average-reading power meter indicate under the same transmitter conditions?
625 watts
427.5 watts
884 watts
442 watts
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