What is the main cause of intermodulation distortion?

1 Answer

Answer :

Close spacing of transmitters and receivers.

Related questions

Description : When you are testing a piece of equipment for intermodulation distortion, what should the output of the equipment look like?

Last Answer : An exact reproduction of the input.

Description : Crosstalk due to incomplete suppression of sidebands or to intermodulation of two or more frequency-multiplexed channels which is unintelligible is classified as A. Impulse noise B. Thermal noise C. Quantizing noise D. Miscellaneous noise

Last Answer : D. Miscellaneous noise

Description : Which standard is utilized in intermodulation noise rates on PCM audio channels? A. CCIT Rec. G.151 B. CCIT Rec. G.172 C. CCIT Rec. G.190 D. CCIT Rec. G.190

Last Answer : B. CCIT Rec. G.172

Description : An interfering current in a telegraph or signaling channel due to telegraph or signaling current by another channel. A. Crosstalk B. Noise current C. Crossfire D. Intermodulation

Last Answer : C. Crossfire

Description : How can intermodulation interference between two transmitters in close proximity reduced or eliminated? A. Through installing a band-pass filter in the antenna feed line B. Through installing terminated circulator ... high driving power D. By installing a low-pass filter in the antenna feed line

Last Answer : A. Through installing a band-pass filter in the antenna feed line

Description : What amplifier class of operation is the most inefficient but has the least distortion?

Last Answer : Class A.

Description : When measuring harmonic distortion, you set the signal generator to input a 15-kHz test signal. To what frequency should you set the wave analyzer?

Last Answer : 45 kHz.

Description : What number harmonic is the primary harmonic distortion in magnetic tape recorders?

Last Answer : Third-order harmonic.

Description : A recorder’s harmonic-distortion specification reads 2% third harmonic of a 100-kHz signal at 60 ips. What does this mean?

Last Answer : The recorder has 2% third-harmonic distortion of a 100-kHz signal at 60 ips.

Description : How does dc bias added to the input signal correct the distortion in the output signal?

Last Answer : The dc bias moves the input signal away from the step in the magnetism curve. This prevents the input signal from crossing the zero-point of the magnetism curve.

Description : Which type of optical fiber (multimode or single mode) tends to have lower loss and produces less signal distortion?

Last Answer : Single mode fiber.

Description : The main problem with such a heat treatment of stainless steel pipe spools and the reason why it is not regularly employed is: a) Controlling the rate of the temperature rise b) Controlling the cooling c) The length of the soak period d) High risk of distortion

Last Answer : d) High risk of distortion

Description : What is the best method for bending aluminum square tubing while keeping a tight radius and minimum distortion?

Last Answer : Buy a pipe bender from a hardware store. Then fill the pipe with water and freeze it, this will stop it form compressing.

Description : Steves reality distortion field?

Last Answer : It's really very strange. When around Steve you seem to just want to say yes to everything even if you feel very strong about your opinion. Many employees have developed something called Stockholm Syndrome ... Fall in love with your capturer but yet people still say he can be the meanest boss.

Description : What is consonant distortion ?

Last Answer : Sometimes a consonant is changed in a word and a new consonant is used. Such a change is called consonant distortion.

Description : How is the ratio of stress and distortion always constant ?

Last Answer : According to Robert Hooke's formula , the stress within the elastic limit is proportional to the deformation. That is , stress ∞ distortion or , stress = distortion constant or , stress / ... Therefore , the ratio of stress to distortion is always constant within the elastic range.

Description : What is the ratio of stress to distortion called ?

Last Answer : The ratio of stress to distortion is called elastic coefficient.

Description : Proportional to the distortion of the stress within the elastic limit. Whose formula is this?

Last Answer : Proportion of stress distortion within the elastic limit. This is Robert Hooke's formula.

Description : What is length distortion ?

Last Answer : When the length of an object changes with the action of an external ball, it is called length distortion. Length distortion is measured by the amount of change in the unit length of an object.

Description : What is wave distortion ?

Last Answer : If two or more waves continue to move in the same direction, their superposition will sometimes increase the intensity too much or sometimes decrease the intensity or become absolutely zero. This phenomenon is called wave distortion.

Description : What is perversion ? What is distortion ?

Last Answer : : A change in the shape of an object by force is called distortion.

Description : What is the cage around the planet formed by the distortion of the magnetic field?

Last Answer : It is the ionosphere.

Description : What is a type of drug that causes distortion of the drivers perception sight and hearing?

Last Answer : Hallucinogen

Description : What is the type of drug that causes distortion of the drivers perception sight hearing and time?

Last Answer : Hallucinogen

Description : What is Delay distortion?

Last Answer : Feel Free to Answer

Description : Why did Ptolemy not need to be concerned about distortion from projections because his map was based on?

Last Answer : What is the answer ?

Description : increases the steady state accuracy. (a) Integrator (b) Differentiator (c) Phase lead compensator (d) Phase lag compensator Ans:A 10.As a result of introduction of negative feedback which of the following will not decrease ? (a) Band width (b) Overall gain (c) Distortion (d) Instability

Last Answer : Ans: A

Description : An amplifier is said to suffer from distortion when its output is - (1) low (2) different from input (3) noisy (4) larger than its input

Last Answer : (3) noisy Explanation: Amplifier Distortion can take on many forms such as Amplitude, Frequency and Phase Distortion due to Clipping. For a signal amplifier to operate correctly without any distortion to the output signal, it requires some form of DC Bias on its Base or Gate terminal.

Description : Refraction is the a. Bending of light waves b. Reflection of light waves c. Distortion of light waves d. Diffusion of light waves

Last Answer : a. Bending of light waves

Description : _________ is the random and unpredictable electric signals from natural causes, both internal and external to the system. A. Interference B. Attenuation C. Distortion D. Noise

Last Answer : D. Noise

Description : What distortion is not caused by transmission line characteristics? A. Phase distortion B. Pulse shape distortion C. Spacing bias distortion D. Amplitude distortion

Last Answer : C. Spacing bias distortion

Description : Which of the following is NOT an acoustical defect to be avoided in acoustical designs? A. Reverberation B. Flutter echo C. Distortion D. Sound concentration

Last Answer : A. Reverberation

Description : This is referred to a product of simultaneous frequency and amplitude modulation or a carrier frequency variation which produces unwanted distortion. A. Absorption modulation B. Simultaneous modulation C. Dynamic instability D. Series modulation

Last Answer : C. Dynamic instability

Description : Which of the following term best described the overload distortion? A. Peak limiting B. Quantization noise C. Granular noise D. Slope distortion

Last Answer : A. Peak limiting

Description : What is the mixing process? A. Distortion caused by auroral propagation B. The combination of two signals to produce sum and difference frequencies. C. The elimination of noise in wideband receiver by phase differentiation D. The elimination of noise in a wideband receiver by phase comparison

Last Answer : B. The combination of two signals to produce sum and difference frequencies.

Description : What is the reason why companding is employed in PCM systems? A. To overcome impulse noise in PCM receivers B. To allow amplitude limiting in the receivers C. To solve quantizing noise problem D. To protect small signals in PCM from quantizing distortion

Last Answer : D. To protect small signals in PCM from quantizing distortion

Description : The random and unpredictable electric signal from natural causes, both internal and external to the system is know as ________. A. Distortion B. Noise C. Attenuation D. Interference

Last Answer : B. Noise

Description : Pick out the correct statement. (A) Stainless steel is nothing but chromium coated steel (B) Hardening of a soft metal can be done by alloying it with another metal or non-metal (C) ... its temporary distortion under the action of applied stress (D) Rusting of iron is not electrochemical in nature

Last Answer : (B) Hardening of a soft metal can be done by alloying it with another metal or non-metal

Description : Benefits of negative feedback include A. less distortion B. increased bandwidth C. low output resistance D. all of above

Last Answer : all of above

Description : Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength? a) Maximum shear stress theory b) Distortion energy theory c) Both give equal values d) Vary from material to material

Last Answer : b) Distortion energy theory

Description : Distortion energy theorem is not recommended for ductile materials. a) True b) False

Last Answer : b) False

Description : The region of safety for biaxial stresses is of which shape in the case of maximum distortion energy theorem. a) Ellipse b) Circle c) Rectangle d) Square

Last Answer : a) Ellipse

Description : In distortion energy theorem, if a unit cube is subjected to biaxial stress, then S(yt) is given by which of the following? a) √ (σ12- σ1σ2 +σ22) b) σ12- σ1σ2 +σ22 c) √ (σ12+ σ1σ2 +σ22) d) σ12+ σ1σ2 +σ22

Last Answer : a) √ (σ12- σ1σ2 +σ22)

Description : A transmission shaft subjected to pure bending moment should be designed on the basis of (A) Maximum principal stress theory (B) Maximum shear stress theory (C) Distortion energy theory (D) Goodman or Soderberg diagrams

Last Answer : (A) Maximum principal stress theory

Description : Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength? a) Maximum shear stress theory b) Distortion energy theory c) Both give equal values d) Vary from material to material

Last Answer : b) Distortion energy theory

Description : Distortion energy theorem is not recommended for ductile materials. a) True b) False

Last Answer : b) False

Description : The region of safety for biaxial stresses is of which shape in the case of maximum distortion energy theorem. a) Ellipse b) Circle c) Rectangle d) Square

Last Answer : a) Ellipse

Description : In distortion energy theorem, if a unit cube is subjected to biaxial stress, then S(yt) is given by which of the following? a) √ (σ12- σ1σ2 +σ22) b) σ12- σ1σ2 +σ22 c) √ (σ12+ σ1σ2 +σ22) d) σ12+ σ1σ2 +σ22

Last Answer : a) √ (σ12- σ1σ2 +σ22)

Description : Shear strain energy theory is also known as (a) Coulomb’s theory (b) Distortion energy theory (c) Rankine theory (d) None

Last Answer : (b) Distortion energy theory

Description : Distortion energy theory is slightly liberal as compared to maximum shear stress theory. a) True b) False

Last Answer : a) True