Atec Audio-Precision-ATS-1A_ATS-1DD - Manual (Page 3)

Performance, Measurement Power, and Ease-of-Use
Easy to Use
Measurement functions are simply selected
from the front panel. Just press a button
and make the
measurement. Se-
lection of analog
and digital inputs
is clearly indi-
cated on the front
panel with LED
legends. ATS-1
makes graphs of
swept measure-
ments in real time
on the high contrast back-lit LCD display,
including both frequency and amplitude
sweeps. Hard copy high-resolution graphs,
compact screen-sized graphs or tabular data
listings can be made from your ATS-1 to la-
ser or ink jet printers at the touch of a
button. Bargraphs can display measure-
ments ranging from AC mains power line
distortion to digital interface error rate
…and nearly everything in between. Sepa-
rate buttons and knobs provide independent
control of frequency and amplitude. The
buttons provide large and medium steps
(decade and 1/3 octave steps for frequency,
10 dB and 1 dB for amplitude), with knobs
for finer resolution. When not otherwise
used, the setting knobs and
buttons also provide a con-
venient human interface for
scrolling display cursors
and for entry of other set-
tings and data.
Stereo:
ATS-1 Dual Domain is a true two channel in-
strument. Both analog and digital level
functions measure both inputs simulta-
neously. Phase and level ratio
measurements are also available.
Full Range of Analog & Digital Testing
Facilities:
ATS-1 Dual Domain provides complete and
parallel measurement capabilities for both
analog and digital audio signals. Measure-
ments common to both domains include:
Amplitude, Noise, Level (2 channels simul-
taneously), Frequency, Phase, THD+N,
SMPTE/DIN, IMD, Crosstalk and Level Ratio.
Standard A-weighting, CCIR 468, and LP/HP
filters are included in both domains. RMS
and quasi-peak (CCIR 468) detectors are
available in both domains.
Analog Performance:
The low distortion transformer-coupled ana-
log generator supplies a full +30.17 dBu
(+29.5 dBm into 600 W) at selectable
(50
W, 150 W or 600 W) source imped-
ances. Extremely low analyzer noise and
residual distortion support measurement of
high performance digital devices.
Analog Convenience Functions:
In addition to the above measurements, the
analog GEN LOAD function measures the in-
put resistance of your device at any
frequency you choose and makes swept im-
pedance measurements (including
loudspeakers).
AC MAINS CHECK measures the voltage, fre-
quency and distortion of the power line
without hazardous direct connections.
BARGRAPH display in AC MAINS CHECK func-
tion provides a visible history of maximum
and minimum mains voltage excursions.
The dBg unit (dB referred to the present an-
alog generator amplitude) is useful for
compression threshold measurements or
rapid response sweeps at several different
absolute levels, as well as for input to out-
put gain/loss measurements.
600 W Analog Input Terminations are indi-
vidually switchable for each channel of the
analog analyzer.