0
What Signal is transmitted by frequencies in the 300- GHz to 300000-GHz range which is just above the top of the wireless spectrum as it is defined by the FCC?
Wiki User
∙ 15y ago
Infrared
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What is Tesla effect?
Wireless energy transfer or wireless power transmission is the process that takes place in any system where electrical energy is transmitted from.
How electromagnetic waves used in communication?
All electromagnetic radiation can be used for communication, up to frequency of, let's say, 3 x 1015 Hz (down to wavelength of, say, 100 x 10-9 m), in the ultraviolet. Past that, higher frequencies (shorter wavelengths) are difficult to generate, modulate, and control, are more hazardous to human exposure, and are absorbed in the atmosphere, so they're not too practical for communication.
What is reflection in wireless signaling?
radar.
Who is Heinrich Hertz and what is he famous for?
Heinrich Hertz was an inventor; Hertz clarified and expanded the electromagnetic theory of light that had been put forth by the British physicist James Clerk Maxwell in 1884. Hertz proved that electricity can be transmitted in electromagnetic waves, which travel at the speed of light and which possess many other properties of light. His experiments with these electromagnetic waves led to the development of the wireless telegraph and the radio.
How wireless charging pad works?
inductive charging
Can you describe the wireless spectrum?
It is the set area of radio frequencies on which wireless communication is formed upon.
What is in spectrum?
Wireless communications make use of the radio portion of the electromagnetic spectrum. Simply put, telecom operators send and receive signals at various frequencies to enable communication. This radio spectrum contains only a limited number of frequencies. Signals can be sent on different frequencies all at the same time, however, if frequencies are the same or too close they can interfere with each other. As the number of frequencies is limited, they need to be allocated to different service providers. Therefore, spectrum is allocated for various communication purposes world-wide. Is spectrum being given free to telecom operators? Contrary to popular perception, spectrum is not available for free. Currently, spectrum charge has two components - the entry fee charged is inclusive of one-time spectrum charge, and an annual spectrum charge based on a percentage of the Adjusted Gross Revenue (AGR) of the telecom company. The percentage of annual spectrum charges for GSM operators, for instance, varies with spectrum usage. Currently, the ceiling for annual spectrum charge is 6% of AGR. Trai, though, has recommended that the ceiling be lowered to 4%. Now, Trai's recommendations only say that there will be no one-time spectrum charge for allocation of IMT-2000 spectrum (meant for 3G) for existing service providers. The regulator has explained that the allocation to the existing operators should be viewed as extension of 2G spectrum allocations. However, a contrary view is that spectrum is a scarce resource and that additional allocation should be priced. Regards, Kanak New Delhi
What is spectrum in telecom?
Wireless communications make use of the radio portion of the electromagnetic spectrum. Simply put, telecom operators send and receive signals at various frequencies to enable communication. This radio spectrum contains only a limited number of frequencies. Signals can be sent on different frequencies all at the same time, however, if frequencies are the same or too close they can interfere with each other. As the number of frequencies is limited, they need to be allocated to different service providers. Therefore, spectrum is allocated for various communication purposes world-wide. Is spectrum being given free to telecom operators? Contrary to popular perception, spectrum is not available for free. Currently, spectrum charge has two components - the entry fee charged is inclusive of one-time spectrum charge, and an annual spectrum charge based on a percentage of the Adjusted Gross Revenue (AGR) of the telecom company. The percentage of annual spectrum charges for GSM operators, for instance, varies with spectrum usage. Currently, the ceiling for annual spectrum charge is 6% of AGR. Trai, though, has recommended that the ceiling be lowered to 4%. Now, Trai's recommendations only say that there will be no one-time spectrum charge for allocation of IMT-2000 spectrum (meant for 3G) for existing service providers. The regulator has explained that the allocation to the existing operators should be viewed as extension of 2G spectrum allocations. However, a contrary view is that spectrum is a scarce resource and that additional allocation should be priced. Regards, Kanak New Delhi
Will a wireless mike interfere with my wireless internet?
You dont have to worry about that. The answer is no. Those devices use different frequencies than your wireless device uses.
How is data transported in a wireless network?
It's transported with wireless protocols (802.11 standards) through the air on different frequencies. Most common frequency used for wireless data is 2.4 GHz. Many newer wireless technologies are moving to different frequencies due to congestion on 2.4
What frequencies are most often used for wireless?
1, 6 & 11
The spectrum allocated to unlicensed frequencies used in wireless discussed in this chapter are than visible light?
Do you truly not understand that the question is talking about the chapter that you were supposed to read ? And that neither you nor I has any possible way to answer the question without reading the chapter.
Who transmitted the first wireless message in 1895?
Guglielmo Marconi
What is RF?
RF stands for Radio Frequency, which represents a wireless communication technology used for transmitting data between electronic devices. It operates within a specific range of frequencies on the electromagnetic spectrum. RF technology is commonly used in various applications such as wireless networks, mobile phones, and RFID systems.
Does Bluetooth uses radio waves?
bluetooth is an open wireless protocol for exchanging data over short distances. it uses short length radio frequencies. bluetooth uses a radio technology called frequency-hoping spread spectrum.
What about 2g spectrum means?
2Gspectrum means nothing but the wireless mobiles which was introduced in second generation are call as 2G Spectrum
