Antenna Measurements Questions and Answers – Spectrum Analyzer

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This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Spectrum Analyzer”.

1. Spectrum Analyzer is time domain instrument.
a) True
b) False
View Answer

Answer: b
Explanation: Spectrum analyzer is a frequency domain instrument. It gives the plot of signal amplitude versus the frequency. The amplitude is the Fourier transform of the signal. It acts as a diagnostic tool for the RF and EMI measurements.
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2. Which of the following instrument measures the amplitude and phase of the signal?
a) Network analyzer
b) Spectrum analyzer
c) Oscilloscope
d) Klystron
View Answer

Answer: a
Explanation: Network analyzer is used to measure the amplitude of signal and phase over a frequency. Spectrum analyzer which is a frequency domain instrument gives the plot of signal amplitude versus the frequency. Oscilloscope is a time domain instrument. Klystron acts as a source for the microwave signal.

3. Which of the following is not present in the spectrum analyzer?
a) Swept local Oscillator
b) RF amplifier
c) Sweep voltage generator
d) Slotted line
View Answer

Answer: d
Explanation: The slotted line is not used in the spectrum analyzer. Spectrum analyzer is a frequency domain instrument. It gives the plot of signal amplitude versus the frequency.
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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn | Youtube | Instagram | Facebook | Twitter