Getting Started
AM700 Audio Measurement Set Programmer Manual 1–23
Range. The AM700 treats attenuation and gain as joined parameters that define the
input range setting. A range window has a dynamic range of approximately 100 dB,
but the location of the range window may be positioned within overall dynamic
range of approximately +44 to –122 dBu. The numeric value in the Range command
is the level at which the input signal will clip (the maximum signal level for the
range window). The default range setting is AUTO. In AUTO, the input signal is
examined and the range window is positioned to produce a useful measurement on
the applied signal. Setting the range to a specified value turns off AUTO.
Syntax: INPUt:RANGe:AUTO <Boolean>|ONCE
INPut:RANGe <numeric_value>
Example: The first of the two following examples turns autoranging on; the second sets
the signal clipping level at +35 dBu.
INPut:RANGe:AUTO ON
INPut:RANge 43
Range: The numerical_value for range is 0.0870 to 173.616 volts in 12, 6 dB steps:
dBu Volts
–18.9911 0.0870
–12.9911 0.1736
–6.9911 0.3464
–0.9911 0.6911
5.0089 1.3789
11.0089 2.7512
17.0089 5.4893
23.0089 10.9527
29.0089 21.8535
35.0089 43.6034
41.0089 87.0003
47.0103 173.6160
Setting the value for a number that is in between the step settings defaults the range
to the next highest valid range step. For example, if you set it for 2 volts, the actual
setting will be 2.7512 for clipping at approximately 11 dBu.