What is the chief advantage of the air coaxial line?

What is the chief advantage of the air coaxial line?
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1 Answer

Answer :

The ability to minimize radiation losses.
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Related questions

List the three disadvantages of the air coaxial line

Description : List the three disadvantages of the air coaxial line

Last Answer : Expensive to construct, must be kept dry, and high frequency losses limit the practical length of the line.

What causes the current-carrying area at the center conductor of a coaxial line to be restricted to a small layer at the surface?

Description : What causes the current-carrying area at the center conductor of a coaxial line to be restricted to a small layer at the surface?

Last Answer : Skin effect.

What precautions should you take when tying bundles containing coaxial cables?

Description : What precautions should you take when tying bundles containing coaxial cables?

Last Answer : Do not tie too tightly and use the proper type of tape.

The large surface area of a waveguide greatly reduces what type of loss that is common in two-wire and coaxial lines?

Description : The large surface area of a waveguide greatly reduces what type of loss that is common in two-wire and coaxial lines?

Last Answer : Copper loss.

. Why are coaxial lines more efficient at microwave frequencies than two-wire transmission lines?

Description : . Why are coaxial lines more efficient at microwave frequencies than two-wire transmission lines?

Last Answer : The electromagnetic fields are completely confined

Is the attenuation of a coaxial cable independent of frequency?

Description : Is the attenuation of a coaxial cable independent of frequency?

Last Answer : No.

What factor has the greatest effect on the physical size of a coaxial cable?

Description : What factor has the greatest effect on the physical size of a coaxial cable?

Last Answer : The dielectric constant of the insulating material.

What are the two types of coaxial lines in use today?

Description : What are the two types of coaxial lines in use today?

Last Answer : Air coaxial (rigid) and solid coaxial (flexible).

What is the advantage of using in-line wattmeters over output power meters?

Description : What is the advantage of using in-line wattmeters over output power meters?

Last Answer : Most in-line wattmeters are capable of measuring both forward and reflected power.

What is the main advantage of using a time-domain reflectometer (tdr) to test a transmission line?

Description : What is the main advantage of using a time-domain reflectometer (tdr) to test a transmission line?

Last Answer : Tdr will indicate the nature of and the distance to or location of any faults.

I have a Surge Protector (with Data Line protection: ethernet, telephone, coaxial cable) Plugged into a UNGROUNDED Outlet. Do is there a risk? It is Safe?

Description : I have a Surge Protector (with Data Line protection: ethernet, telephone, coaxial cable) Plugged into a UNGROUNDED Outlet. Do is there a risk? It is Safe?

Last Answer : My understanding is that the surge protector helps keep your equipment safe. And the grounding helps keep you safe. The surge protector will trip a circuit so any power spikes won't damage your stuff that is ... least that is how my brother in law explained it to me. (he is a licensed electrician)

What do you call a cable consisting of twisted pairs of conductors, each separately insulated? A. Microstrip line B. Strip line C. Quad D. Coaxial cable

Description : What do you call a cable consisting of twisted pairs of conductors, each separately insulated? A. Microstrip line B. Strip line C. Quad D. Coaxial cable

Last Answer : C. Quad

Which of the following is not a bounded medium? A. Coaxial line B. Two-wire line C. Waveguide D. Free space

Description : Which of the following is not a bounded medium? A. Coaxial line B. Two-wire line C. Waveguide D. Free space

Last Answer : D. Free space

What medium is used by IBM token ring network that operates at either 4 Mbps or 16 Mbps? A. Twisted pair B. Coaxial cable C. Fiber-optic D. Parallel-wire line

Description : What medium is used by IBM token ring network that operates at either 4 Mbps or 16 Mbps? A. Twisted pair B. Coaxial cable C. Fiber-optic D. Parallel-wire line

Last Answer : A. Twisted pair

What type of balun (balanced-to-unbalanced) is used in high frequency applications? A. Transformer type balun B. A specially configured coaxial transmission line C. A specially configured parallel-wire line D. A λ/2 transformer balun

Description : What type of balun (balanced-to-unbalanced) is used in high frequency applications? A. Transformer type balun B. A specially configured coaxial transmission line C. A specially configured parallel-wire line D. A λ/2 transformer balun

Last Answer : B. A specially configured coaxial transmission line

Which of the following is considered the most frequently used transmission line? A. Two-wire open line B. Twin lead C. Rigid coaxial line D. Flexible coaxial line

Description : Which of the following is considered the most frequently used transmission line? A. Two-wire open line B. Twin lead C. Rigid coaxial line D. Flexible coaxial line

Last Answer : D. Flexible coaxial line

A coaxial cable has 7dB of reflected power when the input is 5 watts. What is the output of the transmission line? A. 5 watts B. 2.5 watts C. 1.25 watts D. 1 watt

Description : A coaxial cable has 7dB of reflected power when the input is 5 watts. What is the output of the transmission line? A. 5 watts B. 2.5 watts C. 1.25 watts D. 1 watt

Last Answer : D. 1 watt

What would be the physical length of a tpical coaxial transmission line that is electrically one-quarter wavelength long at 14.1 MHz? A. 20 meters B. 3.51 meters C. 2.33 meters D. 0.25 meter

Description : What would be the physical length of a tpical coaxial transmission line that is electrically one-quarter wavelength long at 14.1 MHz? A. 20 meters B. 3.51 meters C. 2.33 meters D. 0.25 meter

Last Answer : B. 3.51 meters

Why is the physical length of a coaxial cable transmission line shorter than its electrical length?A. Skin effect is less pronounced in the coaxial cable B. RF energy moves slower along the coaxial cable C. The surge impedance is higher in the parallel feed line D. The characteristic impedance is higher in the parallel feed line

Description : Why is the physical length of a coaxial cable transmission line shorter than its electrical length? A. Skin effect is less pronounced in the coaxial cable B. RF energy moves slower along the ... higher in the parallel feed line D. The characteristic impedance is higher in the parallel feed line

Last Answer : B. RF energy moves slower along the coaxial cable

What is the meaning of the term “velocity factor” of a transmission line? A. The ratio of the characteristic impedance of the line to the terminating impedance B. The index of shielding for coaxial cable. C. The velocity of the wave on the transmission line multiplied by the velocity of light in a vacuum. D. The velocity of the wave on the transmission line divided by the velocity of light in a vacuum.

Description : What is the meaning of the term velocity factor of a transmission line? A. The ratio of the characteristic impedance of the line to the terminating impedance B. The index of shielding for coaxial ... The velocity of the wave on the transmission line divided by the velocity of light in a vacuum.

Last Answer : D. The velocity of the wave on the transmission line divided by the velocity of light in a vacuum.

What line has a typical velocity factor of about 0.8? A. Shielded pair B. Flexible coaxial C. Twin-lead D. Open-wire line

Description : What line has a typical velocity factor of about 0.8? A. Shielded pair B. Flexible coaxial C. Twin-lead D. Open-wire line

Last Answer : C. Twin-lead

What is the characteristic impedance of a coaxial line with the following data: inner diameter = 0.2 in., center conductor diameter = 0.06 in., insulation = Teflon. A. 200Ω B. 75Ω C. 50Ω D. 150Ω

Description : What is the characteristic impedance of a coaxial line with the following data: inner diameter = 0.2 in., center conductor diameter = 0.06 in., insulation = Teflon. A. 200Ω B. 75Ω C. 50Ω D. 150Ω

Last Answer : C. 50Ω

A transmission line consisting of two conductors that have equal resistance per unit length. A. Unbalanced line B. Open-wire line C. Balanced line D. Coaxial line

Description : A transmission line consisting of two conductors that have equal resistance per unit length. A. Unbalanced line B. Open-wire line C. Balanced line D. Coaxial line

Last Answer : C. Balanced line

What is the meaning of the term velocity factor of a transmission line? A. The index of shielding for coaxial cable B. The velocity of the wave on the transmission line multiplied by the velocity of light in vacuum C. The ratio of the characteristic impedance of the line to the terminating impedance D. The velocity of the wave on the transmission line divided by the velocity of light in a vacuum

Description : What is the meaning of the term velocity factor of a transmission line? A. The index of shielding for coaxial cable B. The velocity of the wave on the transmission line multiplied by the velocity of ... The velocity of the wave on the transmission line divided by the velocity of light in a vacuum

Last Answer : D. The velocity of the wave on the transmission line divided by the velocity of light in a vacuum

Best choice of transmission line component to couple a coaxial line to a parallel-wire line A. Shorting B. Balun C. Slotted line D. Directional coupler

Description : Best choice of transmission line component to couple a coaxial line to a parallel-wire line A. Shorting B. Balun C. Slotted line D. Directional coupler

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The outer conductor of a coaxial transmission line is always grounded at the A. Input only B. Input and output C. Output only D. Point of high SWR

Description : The outer conductor of a coaxial transmission line is always grounded at the A. Input only B. Input and output C. Output only D. Point of high SWR

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To couple a coaxial line to parallel line, it is better to use a ______. A. Slotted line B. Quarter-wave transformer C. Directional Coupler D. Balun

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To connect coaxial line to a parallel-wire _________ is the best to use. A. directional coupler B. quarter-wave transformer C. balun D. slotted line

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To connect a computer with a device inthe same room, you might be likely to use A. a coaxial cable B. a dedicated line C. a groundstation D. All of theabove

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Last Answer : a coaxial cable

To connect a computer with a device inthe same room, you might be likely to use A. a coaxial cable B. a dedicated line C. a groundstation D. All of theabove E. None of the above

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In a coaxial transmission line, the useful power flows through

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To couple a coaxial line to a parallel wire line, it is best to use a:...

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The chief advantage of encystment of an Amoeba is (a) the ability to survive during adverse physical conditions (b) the ability to live for sometime without ingesting food (c) protection from parasites and predators (d) the chance to get rid of accumulated waste products

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The chief advantage of Ward-Leonard system D.C. motor speed control is that is

Description : The chief advantage of Ward-Leonard system D.C. motor speed control is that is  1. Can be used even for small motors 2. has high overall efficiency at all speeds 3. Gives smooth, sensitive and wide speed control 4. Uses a flywheel to reduce fluctuations in power demand

Last Answer : The chief advantage of Ward-Leonard system D.C. motor speed control is that is Gives smooth, sensitive and wide speed control 

What is an advantage of using a resistance soldering iron when soldering wire to a connector?

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What is a major advantage of the crimped terminal over the soldered terminal?

Description : What is a major advantage of the crimped terminal over the soldered terminal?

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What advantage does a half adder have over a quarter adder?

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What main advantage does a bridge rectifier have over a conventional full-wave rectifier?

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What is the advantage of designing a limited bandwidth into a servo amplifier?

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Description : What is the primary advantage of the shielded pair?

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Description : The ability to place more components in a given space is an advantage of the __

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