NTi Audio Digilyzer DL1 - Manual (Page 46)

46
• The sweep recording will be stopped when as soon as an input
signal with a lower frequency occurs or manually by the enter
key pressed again (cursor on the flashing REC field).
• In order to analyze the sampled curve more detailed activate the
arrow mode by placing the cursor to the corresponding symbol.
Press the enter key and move the arrow to the sample(s) of
interest by using the left / right keys.
• To zoom in/out the Y-axis move the cursor to the zoom mode
field, press enter and use the left / right keys.
• To scroll through the Y-axis move the cursor to the zoom mode
field, press enter and use the up / down keys.
The last recorded sweep curve will be stored internally, even after
leaving the sweep mode or switching off the Digilyzer. As soon as
the frequency sweep mode is re-entered, the curve will re-appear on
the graph until a new frequency sweep is started.
NOTE The auto power off is disabled during a frequency
sweep recording.
Test signal:
The sweep measurement can be carried out by using the sweep signal
produced by the Minirator MR1, the "NTi Audio Wavefile Generator"
software or other external sweeps with the following pre-conditions:
• Signal type: Stepped sweep
• Step time: min. 1 second / step
• Frequency step: min. 1% increase
• Max. number of steps: 160
• Start frequency: 20 Hz
Measurement Functions