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20 Cards in this Set
- Front
- Back
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An Intentional Raditor (IR) |
Power Directed Antenna |
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________is the power radiated out by the wireless system includes any antenna gain |
Equivalent Isotropically Radiated Power (EIRP) |
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The passive gain increases of power that is funneled from an antenna compared to that of an isotropic raditor is |
dBi |
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_____compares the antenna gain against that of a dipole antenna |
dBd |
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The orentation of radio waves as they leave an antenna is called |
polarization |
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APs with multiple antennas employ______to improve reception |
Antenna Diversity |
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Generally, A semidirectional antenna will only transmit its signal no more then _______ degrees |
180 |
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An antenna that divides the entire 360 degrees of coverage area into eight sectors of 45 degrees each is called a(n) |
Sectorized Antenna |
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The outer circle of an antenna radiation chart represents |
a gain that is 100 percent |
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A(n)_____chart shows the vertical coverage area of an antenna |
elevation |
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Beamwidth is considered a measure of the antenna's ________range |
half-power |
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The general rule of thumb is that_____percent of the 1st fresnel zone must clear of obstacles |
60 |
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A SISO system has how many radio chains |
1 |
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_____sends redundant streams in parallel |
spatial diversity |
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a wireless device designated as 2x3:1 has how many rx antennas |
3 |
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The maximal radio combining (MRC) alogorithm is used when |
a non-MIMO device sends to MIMO device |
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what are 3 good locations for installing AP |
1.) Ceiling 2.) High on a wall 3.) a pole |
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Amplifiers for wireless LANs are |
bidirectional |
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Another name for system operating margin (SOM) is |
fade margin |
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When the VSWR is indicated in DB it is called the |
Return Loss |
