Audio Precision ATS-2, Getting Started

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Now switch the waveform type back to sine. The current square wave
frequency is used for the sine wave.
You can enter standard SI prefixes for multipliers as you
enter the value in the setting field. For example, ‘2000’, ‘2k’,
‘0.002M’, and ‘2000000m’ all produce the same frequency.
All waveforms can be generated at any amplitude from 0 V to the
maximum output voltage of the instrument. The amplitude for each
channel is controlled by fields below the ‘OUTPUTS’ field. If the ‘Track A’
selection is checked, the amplitude is identical in both channels and is set
by the channel A Amplitude field at the left of the panel. If ‘Track A’ is
unchecked, a channel B Amplitude field appears at the right of the panel,
and the amplitudes of the two channels can be varied independently.
Change the channel A amplitude to 0.5 V by clicking in the Amplitude
field on the Analog Generator panel, typing ‘0.5’, and hitting enter. The
level meter reading on the Analyzer panel will change. (You will also hear
relays click if the system needs to change the analog range.) Now uncheck
‘Track A’ and set the channel B amplitude to 10 V. The level meters on the
Analyzer panel will show the different levels. Both frequency meters,
however, will show the same frequency. This is because the Sine/Normal
waveform generates identical frequencies in the two channels.
The Sine/Stereo waveform, which is obtained by choosing Sine from
the left-hand waveform field and Stereo from the right-hand waveform
field, generates independent frequencies in the two channels. You can
verify the frequency in each channel by referring to the frequency meters
on the Analyzer panel.
Units
Settings and readings consist of a value and a unit . ATS can convert the
units of a setting or reading to a related unit. For instance, the analog
generator amplitude can be set in Vp (volts peak), dBV (decibels relative to
1 V), and several other units. Similarly, readings can be displayed on a
meter in any of the related units.
The list of units for a setting or reading can be viewed by clicking the
downward-pointing arrow next to the setting or reading field. For instance,
the list of units for the analog generator amplitude can be displayed by
clicking on the arrow next to the Amplitude field on the Analog Generator
panel. ATS displays the value currently in the field, converted to each
available unit. By clicking on the list, you can choose a setting unit.
As an example, if the amplitude is set to 1 Vrms, the drop-down list
includes conversions such as 1.414 Vp and 2.220 dBu. If you click on the
line displaying the amplitude in Vp, the setting changes to 1.414 Vp. The
Chapter 5: Quick Guides Quick Guide to the Analog Signal Path
32 Getting Started with ATS-2