Karteikarten
CWNA - Flash Cards - Chapter 3
Karten in diesem Stapel (17)
- 1Takes data provided and modifies the AC signal using a Modulation techniqueTransmitter
- 2Collects the AC signal received from the Transmitter and directs or radiates it out.Antenna
- 3Takes the carrier signal received from the antenna and translate the modulated signals into 1s and 0sReceiver
- 4Power measured at the connector that provides the input to the antennaIntentional Radiator (IR)
- 5- Transmitter - All cables - Connectors - Any other equipment (grounding, lightning arrestors, amplifiers, attenuators) between the transmitter and the and antennaComponents of Intentional Radiator (IR)
- 6Highest RF signal strength that is transmitted from a particular antennaEquivalent Isotopically Radiated Power (EIRP)
- 7Relative expression used to represent a difference between two valuesDecibel (dB)
- 8Used to compare the output of one antenna to anotherdBi
- 9decibel gain relative to a dipole antennadBd
- 10Doubles the distance of the usable signal+6dB
- 11Halves the distance of the usable signal-6dB
- 12Modulated or unmodulated Background level of radio energy on a specific channelNoise Floor
- 13Difference in decibels between the received signal and the background noise levelSignal-to-Noise Ratio (SNR)
- 14The lower the power level that a receiver can successfully process the better theReceive sensitivity
- 15Power level of an RF signal required to be successfully received by the receiver radioReceived Signal Strength Indicator
- 16Sum of all the planned and expected gains and losses from the transmitting radio, through the RF medium, to the receiver radioLink Budget
- 17Level of desired signal above what is required and is Normally used for outdoor WLAN bridge linksFade Margin / System Operating Margin
Informationen
- Beschreibung
- CWNA Karteikarten am CWNA - Flash Cards - Chapter 3, erstellt von Amit Pindoria am 21/02/2017.
- Erstellt von
- Amit Pindoria
- Aufrufe
- 27
- Tags
- Bewertung