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AGILENT 35670A
Supplemental Operator’s Guide
18
Section 8 : Improving Dual Channel Measurement Results
Maximizing Dynamic Range
Autoranging to maximize the dynamic range of measurements in the AGILENT
35670A can function on all channels simultaneously. Therefore all capability
previously mentioned for single-channel front-end ranging is available for dual-
channel operation.
To set up autorange on all channels, follow these steps:
• Press the [Input] hardkey.
• Press [ALL CHANNELS] softkey (F2).
• Select the [CH* AUTO RANGE] softkey (F6)
For signals that are not steady, use CH* AUTO UP ONLY. CH1 AUTO UP ONLY
can be used for all channels to set up modal impact testing. To set up this condition:
• Press the [Input] hardkey.
• Select the [CH* AUTO UP ONLY] softkey (F5).
To set up the same fixed range on all channels:
• Press the [Input] hardkey.
• Select the [CHANNEL * RANGE] softkey (F3)
• Enter the range, either in units of g or Volts.
Dual Channel Averaging
Averaging to reduce measurement variance applies to all channels being measured.
Dual channel averaging is set up the same as single channel averaging:
• Press the [Avg] hardkey.
• Press the [NUMBER AVERAGES] softkey (F2), enter 10, then press the
[ENTER] softkey (F1).
• Press the [AVERAGE TYPE] softkey (F3)
• Press the [RMS] softkey (F1)
• Press the [Avg] hardkey.
• Turn on averaging by pressing the [AVERAGE ON OFF] softkey (F1)
until ON is highlighted.