Which of the following limits the highest frequency signal that can be accurately displayed on a digital oscilloscope?

1. A Sampling rate of the analog-to-digital converter
2. B Analog-to-digital converter reference frequency
3. C Q of the circuit
4. D All these choices are correct

Which of the following parameters does a spectrum analyzer display on the vertical and horizontal axes?

1. A Signal amplitude and time
2. B Signal amplitude and frequency
3. C SWR and frequency
4. D SWR and time

Which of the following test instruments is used to display spurious signals and/or intermodulation distortion products generated by an SSB transmitter?

1. A Differential resolver
2. B Spectrum analyzer
3. C Logic analyzer
4. D Network analyzer

How is compensation of an oscilloscope probe performed?

1. A A square wave is displayed, and the probe is adjusted until the horizontal portions of the displayed wave are as nearly flat as possible
2. B A high frequency sine wave is displayed, and the probe is adjusted for maximum amplitude
3. C A frequency standard is displayed, and the probe is adjusted until the deflection time is accurate
4. D A DC voltage standard is displayed, and the probe is adjusted until the displayed voltage is accurate

What is the purpose of using a prescaler with a frequency counter?

1. A Amplify low-level signals for more accurate counting
2. B Multiply a higher frequency signal so a low-frequency counter can display the operating frequency
3. C Prevent oscillation in a low-frequency counter circuit
4. D Reduce the signal frequency to within the counter's operating range

What is the effect of aliasing on a digital oscilloscope when displaying a waveform?

1. A A false, jittery low-frequency version of the waveform is displayed
2. B The waveform DC offset will be inaccurate
3. C Calibration of the vertical scale is no longer valid
4. D Excessive blanking occurs, which prevents display of the waveform

Which of the following is an advantage of using an antenna analyzer compared to an SWR bridge?

1. A Antenna analyzers automatically tune your antenna for resonance
2. B Antenna analyzers compute SWR and impedance automatically
3. C Antenna analyzers display a time-varying representation of the modulation envelope
4. D All these choices are correct

Which of the following is used to measure SWR?

1. A Directional wattmeter
2. B Vector network analyzer
3. C Antenna analyzer
4. D All these choices are correct

Which of the following is good practice when using an oscilloscope probe?

1. A Minimize the length of the probe's ground connection
2. B Never use a high-impedance probe to measure a low-impedance circuit
3. C Never use a DC-coupled probe to measure an AC circuit
4. D All these choices are correct

Which trigger mode is most effective when using an oscilloscope to measure a linear power supply's output ripple?

1. A Single-shot
2. B Edge
3. C Level
4. D Line

Which of the following can be measured with an antenna analyzer?

1. A Velocity factor
2. B Cable length
3. C Resonant frequency of a tuned circuit
4. D All these choices are correct