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Why vertical polarized wave is preferred over horizontal polarized wave in mobile radio communication?
Wiki User
∙ 14y ago
1). Reflection of vertically polarized waves is less efficient, so vertical polarization is less susceptible
to multipath fading due to ground-based reflection.
2). In order to avoid directional effects due to the radiation pattern of the receiving antenna
(losing the mobile signal when the car turns a corner), the antenna wants to be vertical.
That generally means vertical electrical polarization.
Wiki User
∙ 14y ago
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Why circular polarisation is not used for mw sdh or mw pdh radio backbone transmission link?
Linear vertical or horizontal polarization is normally used in microwave transmission. Reasons: Circularly polarized antennas are more complex and more expensive, because they are actually double polarized antennas, i.e. a combination of horizontal and vertical polarizations. Rain attenuation is lowest when the polarization is vertical. Therefore longer hops can be built if circular polarization is avoided.
Why the antenna of radio are vertical?
Not all radio antennas are vertical.The main reason radio antennas tend to be vertical is convenience of mounting. Many early radio antennas were long horizontal wires strung between two poles or trees. This was also a matter of convenience in mounting such a long antenna (e.g. 50 feet to 100 feet in length).When you are operating radios in the VHF or UHF band a vertical or horizontal mounting of the short antennas used at these frequencies might be selected to improve reception of a polarized radio signal sent by the transmitter.
What is meant by rectangular components of a force?
For simplicity consider a force whose direction does not correspond to either the x- or y-axis. At the head of the force (where the arrow is) draw a vertical line to the horizontal axis and a horizontal line to the vertical axis. The force is now enclosed by the lines you have drawn and the axes and this enclosure is a rectangle. Since a rectangle is also a parallelogram this means that you have also resolved the given vector into two components, namely, the one given by the portion of the horizontal axis between the origin and where your vertical line meets that axis, and the one given by the portion of the vertical axis between the origin and where your horizontal line meets that axis. These two vectors are the rectangular components of the given force.
What is the meaning of tabulation?
the process of arranging data oderly in form of rows and columns is known as tabulation. rows are horizontal arrangements, columns are vertical arrangements.
Should an Xbox be vertical or orazontle?
... i think you mean horizontal. the Xbox is better to be played horizontal (in my opinion). For one reason it makes it much safer from falling or scratching the disk. I have personally put mine verticle nocked it over and it scratched my disk!
Are cross-element Yagi antennas always circularly polarized?
No. They can be circularly polarized with the correct phasing harness, or used as a way to switch between horizontal and vertical polarization with one antenna. No. They can be circularly polarized with the correct phasing harness, or used as a way to switch between horizontal and vertical polarization with one antenna.
In what direction is the polarization of the glare that reflects from a horizontal surface?
It is polarized at 90 degrees to the plane of incidence. If the surface is horizontal, the plane of incidence is vertical & the polarization would be horizontal.
Polarized sunglasses work by?
When light reflects off flat surfaces, such as pavement or water, it becomes polarized. This means that instead of scattering in all directions, it travels horizontally. Humans experience polarized light as glare. Polarized sunglasses block polarized light with vertical filters that prevent horizontal light from passing through. Only light traveling vertically can pass through the vertical filter.
Why circular polarisation is not used for mw sdh or mw pdh radio backbone transmission link?
Linear vertical or horizontal polarization is normally used in microwave transmission. Reasons: Circularly polarized antennas are more complex and more expensive, because they are actually double polarized antennas, i.e. a combination of horizontal and vertical polarizations. Rain attenuation is lowest when the polarization is vertical. Therefore longer hops can be built if circular polarization is avoided.
What is a yaw?
A yaw is the rotation of an aircraft about its vertical axis which causes the aircraft to deviate from its preferred horizontal flight line.
What is dual polarized antenna?
Its an antenna that can operate in vertical as well as horizontal polarization. Dual polarized antennas are often used in 802.11n devices to enable multi-thread communication. This enables the device to transmit data on one polarization and receive data on the other simultaniously. The advantage of this is that multi-thread communication can be achieved with the use of one antenna instead of using two independent (and opposite polarized) antennas for the same result. Obviously all the networking equipment in the wireless network must be multi-thread complaint for this to work.
What is vertical and what is horizontal?
Vertical is up and horizontal is across
Is the san Andreas fault horizontal or vertical?
Vertical and horizontal
What is the patterns of business communication?
1. vertical 2. horizontal. 3. serial. 4. network. 5.grapevine.
What are three formal channels of communication?
Three formal channels of communication are written communication (emails, reports), verbal communication (meetings, phone calls), and visual communication (charts, graphs). Each channel has its own strengths and is used depending on the message and audience.
What type of power sharing does India have horizontal or vertical?
vertical and horizontal
Which phenomenon causes polarization of light?
Light is usually unpolarized, it becomes polarized when it passes through a polarizing filter. Light can be polarized because it travels as a transverse wave (of oscillating electric and magnetic fields) orthogonally to the direction of the medium in all directions, and polarizing filters polarize light in one plane. Polarized filters in the vertical plane only allow light in the vertical plane to pass through. Ex. polarized sunglasses have a polarizing filter in the vertical plane in order to minimize glare which is polarized light in the horizontal plane. and yes polarizing filters can be rotated to polarize light in other planes as well.
