Communication Systems - Practice Test

(A) 1 False, 2 False

(B) 1 True, 2 True

(C) 1 False, 2 True

(D) 1 True, 2 False

(B) 1 True, 2 True

(A) Amplitude of sidebands

(B) Phase difference between carrier and sidebands

(C) Sideband frequency content

(D) Carrier presence in modulated output

(B) Phase difference between carrier and sidebands

(A) $${A_c}cos 2pi left[ {{f_c}t + mleft( t ight)} ight]$$

(B) $$left[ {1 + intlimits_0^t {mleft( au ight)d au } } ight]cos 2pi {f_c}t$$

(C) $${A_c}mleft( t ight)cos 2pi {f_c}t$$

(D) $${A_c}cos 2pi left[ {{f_c}t + intlimits_0^t {mleft( au ight)d au } } ight]$$

(D) $${A_c}cos 2pi left[ {{f_c}t + intlimits_0^t {mleft( au ight)d au } } ight]$$

(A) Use a longer transmission line

(B) Connect a booster

(C) Change the antenna orientation of location

(D) Twist the transmission line

(C) Change the antenna orientation of location

(A) Is useful in reducing depolarization effect on received wave

(B) Involves critical alignment of transmitting and receiving antenna

(C) Is useful in discrimination between reception of adjacent beams

(D) None of the above

(A) Is useful in reducing depolarization effect on received wave

Communication Systems - Study Mode