Digilyzer DL1 User Manual
Digilyzer DL1 User Manual
Digilyzer DL1 User Manual
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Level Sweep<br />
The <strong>Digilyzer</strong> supports a RMS based frequency sweep. This function<br />
can be applied to measure the frequency response of devices.<br />
During a frequency sweep, the <strong>Digilyzer</strong> records the Level RMS of<br />
every input signal, that has a stable frequency and level, provided that<br />
the frequency is higher than the one of the previous sample (otherwise<br />
the sample will be neglected).<br />
Arrow mode<br />
Zoom<br />
Y-Scale<br />
Measurement Functions<br />
Fig 5-43, Frequency sweep graph<br />
Within a graph every recorded sample is connected by a straight<br />
line approximately to the previous / next sample, thus building the<br />
displayed curve.<br />
In practice the following steps are required / available for the execution<br />
of a frequency sweep.<br />
• Arm the sweep recording process by moving the cursor to the<br />
REC field and pressing the enter key.<br />
• The <strong>DL1</strong> detects the start tone (315 Hz or 1 kHz) of an external<br />
sweep and the recording is automatically started. This status<br />
is indicated by the flashing REC field.<br />
Alternatively, the sweep recording may be started manually<br />
by pressing the enter key with the cursor on the ARM field.<br />
Consequently, the <strong>DL1</strong> records every incoming signal with a<br />
higher frequency than the previous sample.<br />
45<br />
Arrow readout
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