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1.4 TRANSMISSION FLOWS AFFECTING DATA SIGNAL (ATTENUATION (MEANS LOSS OF…
1.4 TRANSMISSION FLOWS AFFECTING DATA SIGNAL
NOISE
MEANS ANY UNWANTED SOUND. IN BOTH ANALOG AND DIGITAL ELECTRONIC
IT IS CALLED NOISE AS A GENERALIZATION OF THE AUDIBLE NOISE WHEN LISTENING TO A WEAK RADIO TRANSMISSIOM
TYPE
THERMAL NOISE - HEAT
INDUCED NOISE - LOUD SOUND
CROSSTALK - PATH
IMPULSE NOISE - SHARP SOUND
OCCURED
WHEN DEVICES ACT AS A SENDING ANTENNA AND THE TRANSMISSION MEDIUM ACT AS THE RECEIVING ANTENNA
LATENCY
DELAY BETWEEN SIGNAL TRANSMISSION AND RECEIPT
IN A NETWORK, LATENCY, A SYNONYM FOR DELAY , IS AN EXPRESSION OF HOW MUCH IT TAKES FOR A PACKET OF DATA
LATENCY IS MEASURED BY SENDING A PACKET THAT IS RETURNED TO THE SENDER
IS THE DELAY BETWEEN REQUESTING DATA AND THE RECEIPT OF A RESPONSE
ATTENUATION
MEANS LOSS OF POWER
A SIGNAL EITHER SIMPLE OR COMPLEX, SENT WILL TRANSFER MEDIA WILL LOSE A PORTION OF ITS POWER
TO REPLACE THE LOST POWER, AN AMPLIFIER (REPEATER) WILL BE USED TO STRENGTHEN POWER
ATTENUATION IS NATURAL CONSEQUENCE OF SIGNAL TRANSMISSION OVER LONG DISTANCE
ANALOG SIGNAL PASS THROUGH AN AMPLIFIER, WHICH INCREASES NOT ONLY COLTAGE OF A SIGNAL
RADIO FREQUENCY INTERFERENCE (RFI)
INTERFERENCE THAT MAY BE GENERATED BY MOTORS, POWER LINES, TELEVISION, OR BROADCAST SIGNAL FROM RADIO OR TV TOWER
ELECTROMAGNETIC INTERFERENCE (EMI)
INTERFERENCE THAT MAY BE CAUSED BY MOTOR, POWER LINES, TELEVISION OR OTHER SOURCES OF ELECTRICAL ACTIVITY