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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 SDM typically realized and combimed with FDM?
Statistical Division Multiplexing (SDM) is typically realized by allocating time slots to different users based on statistical multiplexing techniques. This allows for more efficient use of available bandwidth by dynamically assigning resources based on user demand. When combined with Frequency Division Multiplexing (FDM), SDM can further increase the overall capacity of a communication system by simultaneously multiplexing signals in both the time and frequency domains. This combination enables even greater flexibility and efficiency in managing multiple users and their data streams within a shared communication channel.
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.
What does VDSL use to divide its upstream and downstream channels into subchannels?
Frequency division multiplexing (FDM)
Why were the first microwave ovens referred to as radar ranges?
because microwaves both and radar systems both use microwaves
What is the use of microwave radiation?
Microwave radiation is used for heating food quickly in microwave ovens, in communication technology like satellite transmissions and radar systems, and in medical applications like MRI scans and cancer treatments.
Is this microwave safe dinnerware set suitable for use in the microwave?
Yes, this microwave safe dinnerware set is suitable for use in the microwave.
What do ADSL modems use to divide the upstream traffic from the downstream traffic?
Frequency division multiplexing (FDM)
Why were the first microwave ovens sometimes referred to as radar ranges?
The first microwave ovens were sometimes referred to as radar ranges because microwave technology, which is used in both radar and microwave ovens, was originally developed during World War II for radar systems. The term "radar range" emphasized the speed and efficiency of cooking with microwaves, likening it to the rapid detection capabilities of radar.
What are two energy things that use microwaves?
Microwave ovens heat food by using microwaves to penetrate and excite the water molecules present in the food, causing them to vibrate and generate heat. Microwave communication systems use microwaves to transmit signals wirelessly for various applications such as telecommunications, satellite communications, and radar systems.
Can you use aluminium vessel in microwave oven?
It is not recommended to use aluminium vessels in a microwave oven as it can cause sparks, arcing, and potentially damage the microwave. It is safer to use microwave-safe containers made of glass, ceramic, or microwave-safe plastics.
