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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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A-003-01: AC - peak, peak-to-peak, average, RMS
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A-003-03: Dip meter, signal generator
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