How does temperature inversion affect radio transmission?

How does temperature inversion affect radio transmission?
by

1 Answer

Answer :

It can cause vhf and uhf transmission to be propagated far  beyond normal line-of-sight distances.
by

Related questions

How is the term "temperature inversion" used when referring to radio waves?

Description : How is the term "temperature inversion" used when referring to radio waves?

Last Answer : It is a condition where layers of warm air are formed above layers of cool air.

What is the best type of surface or terrain to use for radio wave transmission?

Description : What is the best type of surface or terrain to use for radio wave transmission?

Last Answer : Radio horizon is about 1/3 farther.

How does fog affect radio waves at frequencies above 2 gigahertz?

Description : How does fog affect radio waves at frequencies above 2 gigahertz?

Last Answer : It can cause attenuation by absorbtion.

How do raindrops affect radio waves?

Description : How do raindrops affect radio waves?

Last Answer : They can cause attenuation by scattering.

How to reduce effect of temperature inversion?

Description : How to reduce effect of temperature inversion?

Last Answer : Welcome to fluther. This sounds like a homework question and we don’t answer them here but we’ll point you in a direction to look. Are you talking gas, fluid, or solid?

Above the inversion temperature, `mu` (J.T. coefficient)

Description : Above the inversion temperature, `mu` (J.T. coefficient)

Last Answer : Above the inversion temperature, `mu` (J.T. coefficient) A. Is positive B. Is zero C. Is negative D. Depends on the gas

Inversion temperature of helium is very low. So when helium is allowed to expand into vacuum it gets

Description : Inversion temperature of helium is very low. So when helium is allowed to expand into vacuum it gets

Last Answer : Inversion temperature of helium is very low. So when helium is allowed to expand into vacuum it ... Heated C. Neither cooled, nor heated D. Liquified

Atmospheric temperature increasing at the higher altitudes is called – (1) Radiation (2) Inversion (3) Conduction (4) Convection

Description : Atmospheric temperature increasing at the higher altitudes is called – (1) Radiation (2) Inversion (3) Conduction (4) Convection

Last Answer : (2) Inversion Explanation: The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer ... as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.

What do you call the increase of temperature with height? A. Temperature inversion B. Normal inversion C. Ducting D. Superrefraction

Description : What do you call the increase of temperature with height? A. Temperature inversion B. Normal inversion C. Ducting D. Superrefraction

Last Answer : A. Temperature inversion

Temperature inversion is

Description : Temperature inversion is

Last Answer : Positive Lapse Rate

____ is a weather-based indicator for assessing crop development [a] Growing Degree Days [b] Thermal Death Point [c] Sun Clad [d] Heat Units [e] Temperature Inversion

Description : ____ is a weather-based indicator for assessing crop development [a] Growing Degree Days [b] Thermal Death Point [c] Sun Clad [d] Heat Units [e] Temperature Inversion

Last Answer : [c] Sun Clad

The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature. (A) Boyle (B) Inversion (C) Critical (D) Reduced

Description : The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature. (A) Boyle (B) Inversion (C) Critical (D) Reduced

Last Answer : (A) Boyle

The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the __________ temperature. (A) Critical (B) Boyle (C) Inversion (D) Reduced

Description : The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the __________ temperature. (A) Critical (B) Boyle (C) Inversion (D) Reduced

Last Answer : (B) Boyle

All gases above its inversion temperature, in a throttling process will show (A) A heating effect (B) No change in temperature (C) A cooling effect (D) Either (A) or (C)

Description : All gases above its inversion temperature, in a throttling process will show (A) A heating effect (B) No change in temperature (C) A cooling effect (D) Either (A) or (C)

Last Answer : (A) A heating effect

Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature. (A) Below (B) At (C) Above (D) Either 'b' or 'c'

Description : Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature. (A) Below (B) At (C) Above (D) Either 'b' or 'c'

Last Answer : A) Below

Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is (A) 0 (B) ∞ (C) +ve (D) -ve

Description : Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is (A) 0 (B) ∞ (C) +ve (D) -ve

Last Answer : (A) 0

Which one is true for a throttling process? (A) A gas may have more than one inversion temperatures (B) The inversion temperature is different for different gases (C) The inversion temperature is same for all gases (D) The inversion temperature is the temperature at which Joule-Thomson co-efficient is infinity

Description : Which one is true for a throttling process? (A) A gas may have more than one inversion temperatures (B) The inversion temperature is different for different gases (C) The inversion ... gases (D) The inversion temperature is the temperature at which Joule-Thomson co-efficient is infinity

Last Answer : (B) The inversion temperature is different for different gases

The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the (A) Critical point (B) Curie temperature (C) Inversion temperature (D) Eutectic temperature

Description : The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the (A) Critical point (B) Curie temperature (C) Inversion temperature (D) Eutectic temperature

Last Answer : (B) Curie temperature

The radiation emitted by a body as a result of its temperature.  a. Blackbody Radiation  b. Thermal Inversion  c. Thermionic Inversion  d. Thermal Radiation

Description : The radiation emitted by a body as a result of its temperature.  a. Blackbody Radiation  b. Thermal Inversion  c. Thermionic Inversion  d. Thermal Radiation

Last Answer : Thermal Radiation

An inversion is: a. A decrease of pressure with height b. A decrease of temperature with height c. An increase of temperature with height d. An increase of pressure with height

Description : An inversion is:  a. A decrease of pressure with height  b. A decrease of temperature with height  c. An increase of temperature with height  d. An increase of pressure with height

Last Answer : c. An increase of temperature with height

An inversion is: a. A decrease of pressure with height b. A decrease of temperature with height c. An increase of temperature with height d. An increase of pressure with height

Description : An inversion is: a. A decrease of pressure with height b. A decrease of temperature with height c. An increase of temperature with height d. An increase of pressure with height

Last Answer : c. An increase of temperature with height

Which of the following does NOT form as a result o a low level temperature inversion? w) smog x) sleet y) tornado z) fog

Description : Which of the following does NOT form as a result o a low level temperature inversion? w) smog x) sleet y) tornado z) fog

Last Answer : ANSWER: Y -- TORNADO 

Atmospheric temperature increasing at the higher altitudes is called (1) Radiation (2) Inversion (3) Conduction (4) Convection

Description : Atmospheric temperature increasing at the higher altitudes is called (1) Radiation (2) Inversion (3) Conduction (4) Convection

Last Answer : Inversion

How does density and temperature affect the velocity of sound?

Description : How does density and temperature affect the velocity of sound?

Last Answer : Velocity increases as density decreases and temperature increases.

Which radio frequency bands use the tropospheric scattering principle for propagation of radio waves?

Description : Which radio frequency bands use the tropospheric scattering principle for propagation of radio waves?

Last Answer : Vhf and above

What happens to the radio wave if the luf is too low?

Description : What happens to the radio wave if the luf is too low?

Last Answer : When luf is too low it is absorbed and is too weak for reception.

What are the two main sources of emi with which radio waves must compete?

Description : What are the two main sources of emi with which radio waves must compete?

Last Answer : Natural and man-made interference.

What is the skip zone of a radio wave?

Description : What is the skip zone of a radio wave?

Last Answer : A zone of silence between the ground wave and sky wave where there is no reception.

There is a maximum frequency at which vertically transmitted radio waves can be refracted back to Earth. What is this maximum frequency called?

Description : There is a maximum frequency at which vertically transmitted radio waves can be refracted back to Earth. What is this maximum frequency called?

Last Answer : Critical frequency.

What factor determines whether a radio wave is reflected or refracted by the ionosphere?

Description : What factor determines whether a radio wave is reflected or refracted by the ionosphere?

Last Answer : Thickness of ionized layer.

What is the primary difference between the radio horizon and the natural horizon?

Description : What is the primary difference between the radio horizon and the natural horizon?

Last Answer : Sea water.

What is the determining factor in classifying whether a radio wave is a ground wave or a space wave?

Description : What is the determining factor in classifying whether a radio wave is a ground wave or a space wave?

Last Answer : Whether the component of the wave is travelling along the surface or over the surface of the earth.

Which layer of the atmosphere has relatively little effect on radio waves?

Description : Which layer of the atmosphere has relatively little effect on radio waves?

Last Answer : Stratosphere.

What is the term used to describe the basic frequency of a radio wave?

Description : What is the term used to describe the basic frequency of a radio wave?

Last Answer : Fundamental frequency.

What is one of the major reasons for the fading of radio waves which have been reflected from a surface?

Description : What is one of the major reasons for the fading of radio waves which have been reflected from a surface?

Last Answer : Shifting in the phase relationships of the wave.

What is the term used to describe a whole number multiple of the basic frequency of a radio wave?

Description : What is the term used to describe a whole number multiple of the basic frequency of a radio wave?

Last Answer : Harmonic frequency or harmonics.

What connecting link is used to transfer energy from a radio transmitter to its antenna located on

Description : What connecting link is used to transfer energy from a radio transmitter to its antenna located on

Last Answer : Transmission line.

What is the main use of a radio teletypewriter?

Description : What is the main use of a radio teletypewriter?

Last Answer : High speed automatic communications across ocean areas.

What type of amplifier would be used to amplify the signal from a radio antenna?

Description : What type of amplifier would be used to amplify the signal from a radio antenna?

Last Answer : An rf voltage amplifier.

Can you get stuck upside down on an inversion table?

Description : Can you get stuck upside down on an inversion table?

Last Answer : Yes

What is Inversion ?

Description : What is Inversion ?

Last Answer : The position of the verb in front of the subject is called inversion , which is the opposite of the general order of a sentence.

After thermal inversion, pollutants pile up in

Description : After thermal inversion, pollutants pile up in

Last Answer : After thermal inversion, pollutants pile up in A. Hanging cool air B. Hanging warm air C. At the boundary of cool and warm airs D. Soil

In thermal inversion.

Description : In thermal inversion.

Last Answer : In thermal inversion. A. Warm ground air gets overlapped by cool air B. Cool ground air gets ... winter D. Ground temperature becomes low in summer.

(A) In `S_(N^(2))` reactions, complete inversion of configuration takes place. (R) In `S_(N^(1))` reactions, retention but not the inversion takes pla

Description : (A) In `S_(N^(2))` reactions, complete inversion of configuration takes place. (R) In `S_(N^(1))` reactions, retention but not the inversion takes pla

Last Answer : (A) In `S_(N^(2))` reactions, complete inversion of configuration takes place. (R) In `S_(N^(1))` ... . D. IF (A) is incorrect but (R) is correct.

Which of the following compounds loses optical activity due to pyramidal inversion?

Description : Which of the following compounds loses optical activity due to pyramidal inversion?

Last Answer : Which of the following compounds loses optical activity due to pyramidal inversion? A. B. C. D.

What is the bottom note in a first inversion triad?

Description : What is the bottom note in a first inversion triad?

Last Answer : In 1st inversion, the 3rd of the chord is on the bottom. For theexample of C major, the E is the lowest note.

What is an inversion table used for?

Description : What is an inversion table used for?

Last Answer : Inversion tables are designed to decompress the spine by taking the weight off it. You strap yourself in and are turned upside down. Supposedly this will alleviate Back pain.

What is the purpose of inversion tables?

Description : What is the purpose of inversion tables?

Last Answer : Inversion tables are used to relieve Back pain. You strap yourself to the table and it allows your body to lie on your back in an inverted position. This relaxes the muscles and ligaments surrounding the spine.

Are inversion tables safe to use if you have high blood pressure?

Description : Are inversion tables safe to use if you have high blood pressure?

Last Answer : Yes, you can use the inversion tables safely even if you have high blood pressure. The best advice would be to check with your doctor for time limits while using the table and warning signs if a problem arises.

Can inversion tables help with migraines?

Description : Can inversion tables help with migraines?

Last Answer : There have been some reports of inversion helping to reduce migraines but there is no medical report that supports that claim. In fact often times due to the nature of inversion, it could increase the severity of a migraine.