Question is ⇒ Which are the popular IF frequencies for microwave and radar receivers operating on frequencies in the range 1 to 10 GHz, Options are ⇒ (A) 30, 60 and 70 kHz, (B) 3, 6 and 7 kHz, (C) 30, 60 and 70 MHz, (D) 3, 6 and 7 GHz, (E) , Leave your comments or Download question paper.

Question is ⇒ Which are the popular IF frequencies for microwave and radar receivers operating on frequencies in the range 1 to 10 GHz, Options are ⇒ (A) 30, 60 and 70 kHz, (B) 3, 6 and 7 kHz, (C) 30, 60 and 70 MHz, (D) 3, 6 and 7 GHz, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Which are the popular IF frequencies for microwave and radar receivers operating on frequencies in the range 1 to 10 GHz
A.	30, 60 and 70 kHz [Wrong Answer]
B.	3, 6 and 7 kHz [Wrong Answer]
C.	30, 60 and 70 MHz [Correct Answer]
D.	3, 6 and 7 GHz [Wrong Answer]
View Answer 3 -2 Explanation:- Answer : C 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 :

⇒ In a 4 input OR gate, the total number of High outputs for the 16 input states are
16
15
14
13

⇒ A resistance of 5 ohms is connected in one branch of a network. The current in this branch is 2.2. A. If the resistance is increased to 7.5 Ω, the remaining circuit being the same, the current in this branch will be
2.2 A
less than 2.2 A
2.2 A or less than 2.2 A
2.2 A or less or more than 2.2 A

⇒ A voltage V(t) is a Gaussian ergodic random process with a mean of zero and a variance of 4 volt². If it is measured by a dc meter. The reading will be
0
4
2
2

⇒ Which of the following devices has a silicon dioxide layer?
NPN transistor
Tunnel diode
JFET
MOSFET

⇒

Match the following:

	List I (type of controller)		List II (Operation)
A.	Pneumatic controller	1.	Flexible operation
B.	Hydraulic controller	2.	High torque high speed operation
C.	Electronic controller	3.	Fire and explosion proof operation

A-1, B-3, C-2
A-1, B-2, C-3
A-3, B-1, C-2
A-3, B-2, C-1

⇒ In the figure circuit, V₁ = 40 V. When R is 10 Ω. When R is zero, the value of V₂ wil
40 V
30 V
20 V
10 V

⇒

Match the following:

	List I		List II
A.	CLP	1.	Measure of μP clock speed
B.	SHELL	2.	Double sided double density
C.	DSDD	3.	Allows you to specify file as command processor
D.	Megahertz	4.	Microcode stored in ROM

A-4, B-3, C-2, D-1
A-3, B-4, C-2, D-1
A-1, B-2, C-3, D-4
A-2, B-3, C-4, D-1

⇒ Which of the following insulating material is restricted to temperatures below 100°C?
Micanite
Asbestos
Teflon
Polythene

⇒ In a superheterodyne receiver
the IF stage has better selectivity than RF stage
the RF stage has better selectivity than IF stage
the RF stage has same selectivity than IF stage
none of the above

⇒ In a lead acid cell, the positive plate has spongy lead.
TRUE
FALSE

⇒ In the circuit of figure the voltage across capacitor when switch is closed at t = &infin
0 V
20 V
very large
7.5 V

⇒ Permeability is analogous to
resistivity
retentivity
conductivity
coercivity

⇒ In the given figure the phase angle of Fn is either 0 or &
TRUE
FALSE

⇒ If the load current is high, the pressure coil of wattmeter should be connected directly across the load.
TRUE
FALSE

⇒ Which one is digital modulation technique?
AM
PAM
PCM
None

⇒

Match the following:

	List I		List II
A.	Interface	1.	A measure of rate of data transmission
B.	A bit	2.	A binary digit
C.	Band speed	3.	The common boundary between various sections and subsections
		4.	A/D converter

A-3, B-2, C-1
A-3, B-1, C-2
A-2, B-4, C-1
A-4, B-2, C-3

⇒

Assertion (A): A presettable counter can be preset to any desired starting point

Reason (R): The maximum frequency of a ripple counter depends on the modulus.

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 true, R is false
A is false, R is true

⇒ To draw ac equivalent circuit for a CE amplifier we should
Reduce all dc sources to zero
Short all capacitors
Reduce all dc sources to zero and short all capacitors
Reduce all dc sources to zero and open all capacitors

⇒ The Thevenin Resistance of the circui
94/7 kΩ
54/7 kΩ
7/54 kΩ
0

⇒ Figure represen
JFET shunt switching circuit
JFET series switching circuit
JFET analog switch
multiplexing

⇒ Whenever a wave is incident on a perfect conductor then the reflection coefficient is
1
0
1 < 180°
depend upon η₁, η₂

⇒ The characteristic equation of an SR flip-flop in given by
Q_n+1 = S + RQ_n
Q_n+1 = RQ_n + SQ_n
Q_n+1 = S + RQ_n
Q_n+1 = S + RQ_n

⇒ Which of the following amplifier circuit using junction transistor has the best gain?
Common base
Common emitter
Common collector
All have the same gain

⇒ In Laplace transform, multiplication by e^-at in time domain becomes
translation by a in s domain
translation by (-a) in s domain
multiplication by e^-as in s domain
none of the above

⇒ The frequency range for satellite communication is
3 to 30 kHz
300 to 3000 kHz
3000 to 30000 MHz
30000 to 300000 MHz

⇒ A Wien bridge oscillator uses
negative feedback
positive feedback
both negative and positive feedback
none of the above

⇒ The signal defined by the equations f(t) = 0 for t < 0, f(t) = E for 0 ≤ t ≤ a and f(t) = 0 for t > a is
a step function
a pulse function
a shifted step function originating at t = a
none of the above

⇒

Assertion (A): A good algorithm should be fast, require minimal computer memory and time.

Reason (R): Many times an algorithm is prepared in the form of a flow chart.

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 R is wrong
A is wrong R is correct

⇒ The function shown in the given Figure can be writte
sum of two sinusoidal functions
sum of two sinusoidal functions one originating at t = 0 and the other at t = 1
difference of two sinusoidal functions one originating at t = 0 and the other at t = 1
none of the above

⇒ Which of the following arithmetic operations requires only one operand in FORTRAN 77?
Addition
Multiplication
Negative
Substraction