The?detection?of?AM?radio signals is a diode application. The modulated?AM?carrier wave is received by the antenna of the radio receiver and is rectified
142) The?detection?of?AM?radio signals is a diode application. The modulated?AM?carrier wave is received by the antenna of the radio receiver and is rectified
Answer is:
diodes for rectification and capacitors for storing the peaks
Explanation:
Related Electronic Devices and Communication MCQ with Answers
Answer is:
10 MHz
Explanation:
Frequencies?below approximately 10?MHz (wavelengths longer than 30 meters), including broadcasts in the?mediumwave?and?shortwave?bands (and to some extent?longwave), propagate most efficiently by skywave at night. Frequencies above 10?MHz (wavelengths shorter than 30 meters) typically propagate most efficiently during the day. Frequencies lower than 3?kHz have a wavelength longer than the distance between the Earth and the ionosphere. The?maximum usable frequency?for skywave propagation is strongly influenced by?sunspot?number.
Answer is:
Space waves
Explanation:
Frequencies in the UHF range normally propagate by means of spacewaves
Answer is:
(i), (ii) and (iii) but not (iv)
Explanation:
digital signals are only of form 0 or 1
Answer is:
No, 3258?km2
Explanation:
NO, it necessary for a transmitting antenna to be at the same height as that of the receiving antenna for line-of-sight communication