
The terms channel and service band mean roughly the same thing.
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Q14: Cellular telephones use _.
A)an omnidirectional antenna
B)a dish
Q15: Wireless LAN standards are created by the
Q16: What propagation problem becomes worse as frequency
Q17: The other wireless device is far away
Q18: Frequency is measured in terms of _.
A)nanometers
B)hertz
C)both
Q20: What propagation problem becomes worse as frequency
Q21: Which unlicensed band is defined the same
Q24: In the Shannon Equation,if you quadruple the
Q27: A channel extends from 55 MHz to
Q56: In 802.11g,channel bandwidth usually is _.
A)20 GHz
B)40
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