Microwave Communication At what position is the input signal inserted into a traveling-wave tube? At the collector At the collector end of the helix At the control grid of the electron gun At the cathode end of the helix At the collector At the collector end of the helix At the control grid of the electron gun At the cathode end of the helix ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication __________ is the progressive decrease of signal strength with increasing distance. Modulation Radiation Propagation Attenuation Modulation Radiation Propagation Attenuation ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The main frequency determining element of a klystron is The accelerating voltage Its mode of operation The repeller voltage Its resonant cavity The accelerating voltage Its mode of operation The repeller voltage Its resonant cavity ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The maximum usable range of the usual radar set (on any particular range setting) is determined by The interval between transmitted pulses The bandwidth of the receiver IF stages The duty cycle The width of the transmitted pulses The interval between transmitted pulses The bandwidth of the receiver IF stages The duty cycle The width of the transmitted pulses ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In microwave transmission using digital radio, what causes most intersymbol interference? Delayed spreading Rayleigh fading Random Doppler shift Slow fading Delayed spreading Rayleigh fading Random Doppler shift Slow fading ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication As the electron beam moves through a klystron’s intercavity drift space Velocity modulation at the input cavity creates density modulation at the output cavity Phase modulation at the input cavity creates velocity modulation at the output cavity. Density modulation at the input cavity creates velocity modulation at the output cavity Frequency modulation at the input cavity creates velocity modulation at the output cavity Velocity modulation at the input cavity creates density modulation at the output cavity Phase modulation at the input cavity creates velocity modulation at the output cavity. Density modulation at the input cavity creates velocity modulation at the output cavity Frequency modulation at the input cavity creates velocity modulation at the output cavity ANSWER DOWNLOAD EXAMIANS APP
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