What is an effect of excessive phase noise in the local oscillator section of a receiver?
Which of the following portions of a receiver can be effective in eliminating image signal interference?
What is the term for the blocking of one FM phone signal by another, stronger FM phone signal?
How is the noise figure of a receiver defined?
What does a value of -174 dBm/Hz represent with regard to the noise floor of a receiver?
A CW receiver with the AGC off has an equivalent input noise power density of -174 dBm/Hz. What would be the level of an unmodulated carrier input to this receiver that would yield an audio output SNR of 0 dB in a 400 Hz noise bandwidth?
What does the MDS of a receiver represent?
An SDR receiver is overloaded when input signals exceed what level?
Which of the following choices is a good reason for selecting a high frequency for the design of the IF in a conventional HF or VHF communications receiver?
Which of the following is a desirable amount of selectivity for an amateur RTTY HF receiver?
Which of the following is a desirable amount of selectivity for an amateur SSB phone receiver?
What is an undesirable effect of using too wide a filter bandwidth in the IF section of a receiver?
How does a narrow-band roofing filter affect receiver performance?
What transmit frequency might generate an image response signal in a receiver tuned to 14.300 MHz and which uses a 455 kHz IF frequency?
What is usually the primary source of noise that is heard from an HF receiver with an antenna connected?
Which of the following is caused by missing codes in an SDR receiver's analog-to-digital converter?
Which of the following has the largest effect on an SDR receiver's linearity?