Advertisements
Advertisements
प्रश्न
Distinguish between ‘Analog and Digital signals’.
उत्तर
It is continuous signal, which varies continuously with variable may be time or distance etc.
E.g. Sound of human
Digital Signal:-
It is a type of signal which has only two values high or low. In digital high mean 1 and low means zero.
E.g. Temperature of day
Maximum 30°C ⇒ 1
Minimum 15°C ⇒ 0
APPEARS IN
संबंधित प्रश्न
Which of the following frequencies will be suitable for beyond-the-horizon communication using sky waves?
(a) 10 kHz
(b) 10 MHz
(c) 1 GHz
(d) 1000 GHz
Frequencies in the UHF range normally propagate by means of:
(a) Ground waves.
(b) Sky waves.
(c) Surface waves.
(d) Space waves.
Whatis the difference between analogue signal and. digital signal?
Answer the following question :
Define 'bandwidth' and describe briefly its importance in communicating signals ?
Block diagram of a receiver is shown in the figure:
(a) Identify ‘X’ and ‘Y’.
(b) Write their functions.
Draw a diagram showing an amplitude modulated wave by superposing a modulating signal over a sinusoidal carrier wave.
Differentiate between Analog and Digital communication.
Broadcasting antennas are generally
What is meant by deviation in frequency of FM wave?
Broadcast band in which FM lies is ______.
