Q. 1: Bandwidth is formally defined to be the length of the frequency spectrum. What are some of the other definitions of Bandwidth, which are in common use?
Q. 2: Radio Antennas often work best when the diameter of the antenna is equal to the wavelength of the radio wave. Reasonable antennas range from 1 cm to 5 meters in diameter. What frequency range does this cover? (Hint: c = f 脳 位)
Q. 3: Is an oil pipeline a Simplex system, a half duplex system, a full duplex system or none of the above?Is an oil pipeline a Simplex system, a half duplex system, a full duplex system or none of the above?
A1. http://www.google.com/search?q=define%3A鈥?/a>
A3. The oil pipeline is a Simplex system because oil flows only in one direction, from point A to point B.
A3.the range is between 60MHz to 300MHz
f = c/位 = (3x 10^8 m/s )/ 1 m = 300 x 10^6 Hz = 300MHz
f = c/位 = (3x10^8 m/s)/5m = 60 x 10^6 Hz = 60MHzIs an oil pipeline a Simplex system, a half duplex system, a full duplex system or none of the above?
An oil pipeline has oil flowing in only one direction. A simplex system is a TX/RX coupled together. So, an oil pipeline would be a half-simplex system. Duplex is 2 simplex connections coupled together.
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