With an increase in operating frequency, the background noise temperature:

Related MCQs

• If a frequency multiplier has a multiplication factor of 10, then the increase in noise level due to frequency multiplication is:
• The equivalent noise temperature of a network given the noise figure of the network or system is:
• A major disadvantage of frequency multipliers is that they multiply the noise factor along with frequency.
• In the plot of reactance v/s frequency of a crystal oscillator, the reactance between series resonant frequency and parallel resonant frequency is:
•                      is defined as the ratio of input signal to noise ratio to the output signal to noise ratio.
• Expression for noise of a two port network considering the noise due to transmission line and other lossy components is:
• Gain of power amplifiers                      with increase in operating frequency.
• A resistor is operated at a temperature of 300 K, with a system bandwidth of 1 MHz then the noise power produced by the resistor is:
• The noise temperature of an antenna is given by the expression:
• Noise equivalent temperature of a 2 stage cascade network is given by: