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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.
What else can I help you with?
How can you hear radio transmission in hilly areas?
radio transmission can be heard in hilly areas because of diffraction
How many channels are there in radio transmission?
205
Was the radio named after radio waves or were radio waves named after the radio?
Radio waves were discovered before the radio was invented.
How made the firt radio?
Do you mean 'Who made the first radio?'? Several people were experimenting with radio transmission, among them Marconi and Hertz.
The first radio transmission from Cornwall to Newfoundland?
guglielmo marconi
What are some uses of polarisation?
Polaroid filters in cameras and glasses; strain analysis (to measure the stress in objects such as seeing where the most stress occurs in a hip bone) and polarised radio waves are used for television transmission.
How can you hear radio transmission in hilly areas?
radio transmission can be heard in hilly areas because of diffraction
What material blocks radio waves and prevents their transmission?
Metal is the material that blocks radio waves and prevents their transmission.
What does a wireless network use as its transmission media?
radio waves or radio frequency
How many channels are there in radio transmission?
205
Do you believe that police communication is the backbone of police tactics?
I believe that communication is the backbone of civilization. But radio communication, hand signals, and smoke gernades are all vital to police work.
Where can I learn more about radio transmission?
The Wikipedia article on radio is pretty comprehensive: http://en.wikipedia.org/wiki/Radio
What are the miracles of radio?
There are no miracles of radio. It is a form of transmission of information using the electromagnetic spectrum
Was the radio named after radio waves or were radio waves named after the radio?
Radio waves were discovered before the radio was invented.
What method of signal transmission uses radio waves to carry signals?
The analog method of signal transmission uses radio waves to carry signals. Digital transmission involves the use of satellites to transmit signals.
When was the first successful transatlantic Radio transmission?
in 1901
How made the firt radio?
Do you mean 'Who made the first radio?'? Several people were experimenting with radio transmission, among them Marconi and Hertz.
