CWNA - Flash Cards - Chapter 3

Descripción

CWNA Fichas sobre CWNA - Flash Cards - Chapter 3, creado por Amit Pindoria el 21/02/2017.
Amit Pindoria
Fichas por Amit Pindoria, actualizado hace más de 1 año
Amit Pindoria
Creado por Amit Pindoria hace alrededor de 7 años
16
0

Resumen del Recurso

Pregunta Respuesta
Takes data provided and modifies the AC signal using a Modulation technique Transmitter
Collects the AC signal received from the Transmitter and directs or radiates it out. Antenna
Takes the carrier signal received from the antenna and translate the modulated signals into 1s and 0s Receiver
Power measured at the connector that provides the input to the antenna Intentional Radiator (IR)
- Transmitter - All cables - Connectors - Any other equipment (grounding, lightning arrestors, amplifiers, attenuators) between the transmitter and the and antenna Components of Intentional Radiator (IR)
Highest RF signal strength that is transmitted from a particular antenna Equivalent Isotopically Radiated Power (EIRP)
Relative expression used to represent a difference between two values Decibel (dB)
Used to compare the output of one antenna to another dBi
decibel gain relative to a dipole antenna dBd
Doubles the distance of the usable signal +6dB
Halves the distance of the usable signal -6dB
Modulated or unmodulated Background level of radio energy on a specific channel Noise Floor
Difference in decibels between the received signal and the background noise level Signal-to-Noise Ratio (SNR)
The lower the power level that a receiver can successfully process the better the Receive sensitivity
Power level of an RF signal required to be successfully received by the receiver radio Received Signal Strength Indicator
Sum of all the planned and expected gains and losses from the transmitting radio, through the RF medium, to the receiver radio Link Budget
Level of desired signal above what is required and is Normally used for outdoor WLAN bridge links Fade Margin / System Operating Margin
Mostrar resumen completo Ocultar resumen completo