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because high-index fm is too mainstream
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What are microwave towers used for?
Microwave towers are simply masts for transceivers that use frequencies above 1 gigahertz.Due to the shortness of the wave length, the normal types of radio aerials are not efficient at such high frequencies therefore microwave towers are usually covered in dish and horns antennas which usually provide point to point communications.Microwave signals are such high frequency that they tend to only work line of sight (LOS). Like light waves they are attenuated by objects in the way (This can include rain and weather). Radio signals at this frequency can get around obstacles by reflection & refraction, literally bouncing off objects or bending around corners like light going through water. This explains why microwave towers are generally at the highest point in the landscape.Most peoples experience of microwave transmitting towers are in the form of mobile phone masts, but like any radio transmitter, microwave transceivers can carry any information or data. For example, they can be used for non-information systems such as RADAR systems for the Coastguard and location beacon systems such as are used along rivers and coasts to provide navigation information for ships.Systems that use microwave transmitters and might be on a tower near you;Sat NavRADARPhone Systems and datamicrowave relayLocation BeaconsPoint to point communicationsWireless LAN SystemsOther unspecified data systemsSpace communicationstelemetry data....and probably many more.
Name the various types of multiplexing techniques?
Multiplexing techniques vary widely based on what is being multiplexed. Modern telecommunications use a very wide array of techniques including: TDM - examples: TDMA, T-carrier FDM - examples: DWDM Spatial - example: MIMO Code division - examples: CDMA Phase or polarization division - cable/satellite TV Statistcal - examples: packet mode (STS), FHSS etc etc. This is far from a complete list. I think the question needs to be more specific.
How is the trend to open systems connectivity and interoperability related to business use of Internet Intranets and extranets?
How is the trend toward open systems, connectivity, and interoperability related to business use of the internet,
Do wireless keyboards send data to the computer using microwave frequencies?
Whether a wireless computer keyboard uses microwave frequencies for communication with the computer depends on the technology used by the keyboard, and on the definition of microwave frequencies. Wikipedia defines microwave frequencies to be in the 1...30GHz range. Many wireless keyboards operate in the 2.4GHz band, which would make them microwave transmitters (and receivers). Other keyboards use different frequencies, below 1GHz. Those would not be microwave devices, according to this definition. The 802.15.4 standard, for example, lists a 868.0-868.6MHz band (Europe), 902..928MHz (US) and the 2.4GHz (2400...2483.5 MHz) band (worldwide, but subject to regional restrictions).
How is interference avoided by using FDM?
Interference is avoided under frequency division multiplexing by the use of guard bands, which are unused portions of the frequency spectrum between subchannels. by abdullahi yusuf gedi
Why do FDM/FM microwave systems use low-index FM In microwave radio communications and system gain?
FM/FDM systems are commonly used in microwave wireless communications because they allow for different frequencies to be assigned to different signals, which means that a large number of signals can be transmitted on the same frequency band. This increases network traffic density without interference between different signals. The properly tuned low gain small system provides additional capability to transmit signals without interfering with other signals in the same frequency band. This increases the efficiency of licensed frequency use, allowing for high-speed and higher-quality data transmission.
Does microwave transmission use satellites?
Microwave transmission can be achieved via terrestrial or satellite systems
Can microwave transmission use terrestrial systems?
it is the transmission of microwaves. One person throws a microwave to another person and so on.
How can you change the downloaded files in FDM?
To change the files in FDM just open the folder and use a converter to change the files.
Why were the first microwave ovens referred to as radar ranges?
because microwaves both and radar systems both use microwaves
What does VDSL use to divide its upstream and downstream channels into subchannels?
Frequency division multiplexing (FDM)
Why were the first microwave ovens sometimes referred to as radar ranges?
because microwaves both and radar systems both use microwaves
What do ADSL modems use to divide the upstream traffic from the downstream traffic?
Frequency division multiplexing (FDM)
Do microwave ovens use electromagnetic radiation?
Yes, microwave ovens use electromagnetic radiation.
Can you use mud pots in microwave?
You can generally use a clay (mud) pot in the microwave- you should check the bottom to see if it has "microwave safe" written on it.
What devices use microwaves?
Microwaves have lots of uses, some commercial (such as microwave ovens, satellite TV, and weather radar) and some military (such as missile guidance systems), applications in the field of scientific research, microwaves monitor the environmental health of our planet as well as to learn more about the universe. Research scientists use microwaves in two types of systems: active and passive. In active systems, such as radars, scientists send out microwaves and examine what comes back. In passive systems scientists simply look for naturally occurring microwaves and use them to learn more about the objects that emit the waves.
What kind of rays does a microwave use?
Microwave oven is used to create microwave radiation of suitable freq....
