Which mixer input is varied or tuned to convert signals of different frequencies to an intermediate frequency (IF)?
If a receiver mixes a 13.800 MHz VFO with a 14.255 MHz received signal to produce a 455 kHz intermediate frequency (IF) signal, what type of interference will a 13.345 MHz signal produce in the receiver?
What is another term for the mixing of two RF signals?
What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?
What is the approximate bandwidth of a PACTOR-III signal at maximum data rate?
What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?
What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?
Why is it important to know the duty cycle of the mode you are using when transmitting?
Why is it good to match receiver bandwidth to the bandwidth of the operating mode?
What is the relationship between transmitted symbol rate and bandwidth?
What combination of a mixer's Local Oscillator (LO) and RF input frequencies is found in the output?
What process combines two signals in a non-linear circuit or connection to produce unwanted spurious outputs?