Ease of radiation
Binary amplitude shift keying, frequency shift keying, and phase shift keying.
Pulse amplitude, pulse width, and pulse position.
Amplitude, frequency, and phase.
Analog, digital and shift keying.
Modulating signal, upper sideband, and lower sideband.
Carrier, upper sideband, and lower sideband.
Upper sideband and modulating signal.
Carrier and modulating signal.
1.01 MHz, 1 MHz, and 0.99 MHz.
1.1 MHz, 1 MHz, and 0.9 MHz.
1.11 MHz, 1 MHz, 0.99 MHz.
1.111 MHz, 1 MHz, 0.999 MHz.
Two times the modulating signal.
The same as the modulating signal.
Determined by the modulation index.
Defined in terms of maximum amount of modulation.
Overmodulating increases bandwidth because the distortion produces harmonics.
Undermodulating increases bandwidth because the distortion produces harmonics.
Overmodulating increases bandwidth because the output’s increased amplitude.
Undermodulating increases bandwidth because the output’s decreased amplitude.
Positive half cycle of the carrier.
Negative half cycle of the carrier.
Positive half cycle of the modulating signal.
Negative half cycle of the modulating signal.
Deviation divided by frequency of modulation.
Deviation times frequency of modulation.
Sideband divide by carrier frequency.
Sideband times carrier frequency.
Phase is shifted at the rate of the modulating signal.
Phase shifted with the phase of the modulating signal.
Amplitude is shifted at the rate of the modulating signal.
Amplitude is shifted with the phase of the modulating signal.
Discrete amplitudes are assigned to the sampling pulses.
A binary code number is assigned to the sample.
The quantizer limits the amplitude of the pulses.
The analog signal is band limited.
Block of data
A parity bit
A stop bit
Determines transmission rate.
Determines whether transmission is in ASCII format.
Determines whether transmission is synchronous or asynchronous.
Cyclic redundancy check
Vertical redundancy check.
Longitudinal redundancy check.
In the oscillator.
In the primary buffers.
Semiconductor laser diodes.
Positive intrinsic negative and avalanche photodiode.
Light-emitting diode and avalanche photodiode.
Light emitting diode and semiconductor laser.
Tunnel and zener diodes.
Light emitting diode.
Positive intrinsic negative diode.