Question is ⇒ Probability of error in DPSK is less than PSK, Options are ⇒ (A) TRUE, (B) FALSE, (C) equal, (D) depend upon noise, (E) , Leave your comments or Download question paper.

Question is ⇒ Probability of error in DPSK is less than PSK, Options are ⇒ (A) TRUE, (B) FALSE, (C) equal, (D) depend upon noise, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Probability of error in DPSK is less than PSK
A.	TRUE [Correct Answer]
B.	FALSE [Wrong Answer]
C.	equal [Wrong Answer]
D.	depend upon noise [Wrong Answer]
View Answer 3 -2 Explanation:- Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ At midband frequencies the coupling capacitor in RC coupled CE amplifier may be considered as
open circuit
short circuit
a reactance equal to load resistance
none of the above

⇒ The maximum theoretical efficiency for class A amplifier is
0.125
0.25
0.5
0.75

⇒ Polarization is a measure of
dielectric constant per unit volume
voltage gradient to produce electrical breakdown
product of charge and distance
excess charge density

⇒ FM broadcast lies in which band?
HF
SHF
UHF
VHF

⇒ Wiedemann-Franz law correlates
electrical and thermal conductivities
electron arrangement in shells
temperature and photo electric emission
all of the above

⇒ It is required to measure a low magnitude high frequency current. The proper instrument is
moving iron
dynamometer
thermocouple
induction

⇒ The pole of a reactive function
lie on jω axis only
lie on negative real axis only
may lie anywhere on s plane
lie on jω axis or on negative real axis

⇒ Who developed the concept of time varying electric field producing a magnetic field?
Gauss
Faraday
Hertz
Maxwell

⇒ A dc amplifier can operate
at zero frequency
only at low frequency
only at high frequencies
both at low and high frequencies

⇒ Resistivity of copper is nearly
1.56 μ ohm-cm
3.95 μ ohm-cm
14.55 μ ohm-cm
22.05 μ ohm-cm

⇒ Which of the following statement is correct for two wattmeters method of power measurement in 3 phase circuit?
Power can be measured by this method only for star connected loads
When two wattmeters have equal readings power factor is 0.5.
When power factor is 1, one of the wattmeters readings is zero
When the two wattmeter read equal and opposite, p.f. is zero.

⇒ Consider the following

The first letter of a Java variable is lower case.
Each successive word in Java variable begins with a capital letter.
All other letters are lower case.
A Java variable can have a digit as first character.

Which of the above are correct?
All
1, 2, 3 only
1, 2, 4 only
2, 3, 4 only

⇒ The wave in wave guide has
group velocity inversely proportional to wavelength
larger frequency than in the free space
diminishing wavelength than in the free space
larger wavelength than in the free space

⇒ Three impedances (3 + j 4) Ω each are connected in star. The impedances of equivalent delta circuit will be
3 - j 4 Ω each
9 + j 12 Ω each
9 - j 12 Ω each
3 + j 4, 3 - j 4 and 4 - j 3 Ω

⇒ In the given figure the input frequency f = 10(1/2 p
0 dB
3 dB
-3 dB
-20 dB

⇒ In a satellite system circular polarization is to be obtained. The antenna used is
parabolic
horn
log periodic
helical

⇒ In a CE amplifier, the output voltage is equal to product of
ac collector current and ac collector resistance
ac base current and ac collector resistance
ac emitter current and ac emitter resistance
ac collector current and source resistance

⇒ For an op-amp source follower circuit
input and output voltages have same magnitude
output and input voltages are in phase
output and input voltages are in phase but have different magnitudes
output and input voltages have same magnitude and are in phase

⇒ The pointer of an indicating instrument should be
very light
very heavy
neither heavy nor light
heavy

⇒ In radar systems PRF stands for
Power Return Factor
Pulse Return Factor
Pulse Repetition Frequency
Pulse Response Factor

⇒ The binary addition 1 + 1 =
11
10
111
100

⇒ In a flip-flop with a NAND latch, a low R and a low S produces
active condition
inactive condition
race condition
dead condition

⇒ The ALU carrier out arithmetic and logic operations (OR AND, NOT, etc.) it processes
decimal numbers
binary numbers
hexadecimal numbers
octal numbers

⇒ In filter system of sideband suppression the advantage of using mechanical filter is
smaller size
good bandpass
good attenuation characteristics
all of the above

⇒ The maximum permissible distance between two samples of a 10 kHz signal
100 μ sec
50 μ sec
10 μ sec
none

⇒ A current tracer responds to
steady current only
pulsating current only
both pulsating and steady current
none of the above

⇒ A balun transformer gives an impedance transformation of
0.167361111111111
0.0840277777777778
0.0444444444444444
0.0430555555555556

⇒ How can the quantizing noise be reduced?
By using de-emphasis circuit
By using RF amplifier in the receiver
By increasing the number of quantization levels
By sending sloping pulses

⇒

Assertion (A): TWT uses a focussing mechanism to prevent the electron beam from spreading.

Reason (R): In a TWT the electron beam has to travel a much longer distance than in klystron.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ The circuit in the given figur
low pass filter
high pass filter
band Pass filter
band reject filter