Microwave Communication Microwave frequencies are normally regarded as those in the range of 10 to 1000 GHz 1 to 100 GHz 1 to 500 MHz 1000 to 10,000 GHz 10 to 1000 GHz 1 to 100 GHz 1 to 500 MHz 1000 to 10,000 GHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as an oscillator device in the SHF band? Klystron tube Both B and C Thyratron tube Tunnel diode Klystron tube Both B and C Thyratron tube Tunnel diode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The antenna separations (in meters) required for optimum operation of a space diversity system can be calculated from:where R = effective earth radius (m) and L = path length (m) S = 3λR/L S = λR/RL S = 2λR/L S = λR/L S = 3λR/L S = λR/RL S = 2λR/L S = λR/L ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What do you call an attenuation that occurs over many different wavelengths of the carrier? Wavelength fading Slow fading Rayleigh fading Rician fading Wavelength fading Slow fading Rayleigh fading Rician fading ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The main frequency determining element of a klystron is Its mode of operation The repeller voltage Its resonant cavity The accelerating voltage Its mode of operation The repeller voltage Its resonant cavity The accelerating voltage ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication As the electron beam moves through a klystron’s intercavity drift space Phase 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 Density 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. Frequency 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 Velocity modulation at the input cavity creates density modulation at the output cavity ANSWER DOWNLOAD EXAMIANS APP
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