Autel MAXISYS ELITE 2 User Manual

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voltage displayed on-screen is equal to the true voltage of the signal with respect to

ground. With AC coupling, any DC component of the signal is filtered out, leaving only the

variations in the signal for the AC component.

Aliasing

When the signal frequency gets higher than half the scope’s maximum sampling rate and

exceeds the limit, a distorted waveform appears. This distortion is called aliasing.

Analog Bandwidth

All oscilloscopes have an upper limit to the range of frequencies at which they can

measure accurately. The analog bandwidth of an oscilloscope is defined as the frequency

at which a displayed sine wave has half the power of the input sine wave (about 71% of

the amplitude).

Block Mode

A sampling mode in which the computer prompts the oscilloscope to collect a block of

data into its internal memory before stopping the oscilloscope and transferring the whole

block into computer memory. This mode of operation is effective when the input signal

being sampled is high frequency.

Buffer Size/Cache Size

This term indicates the size of the oscilloscope’s buffer memory. The buffer memory is

used by the oscilloscope to temporarily store data. This helps to compensate for the

differences in data transfer rate from one device to another.

Sampling Rate

This term is used to define the number of samples per second captured by the

oscilloscope. The faster the sampling rate of the scope, the more frequently it measures

the signal voltage, and so the more detailed will be the trace that appears on the scope

screen.

Streaming Mode

This term indicates a sampling mode in which the oscilloscope samples data and returns

it to the computer in an unbroken stream. This mode of operation is effective when the

input signal being sampled is at low frequency.

Time Base

The time base controls the time interval across the scope display.

Voltage Range

The voltage range is the range between the maximum and minimum voltages that can be

accurately captured by the oscilloscope.

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Autel MAXISYS ELITE 2 MaxiSys Elite II PRO Scanner