SRS Labs SR785 - Manual (Page 12)

Flatness <0.25 dB pk-pk (typical),
<1.0 dB pk-pk (max), 5000 rms
averages
Pink Noise Source
Bandwidth DC to 102.4 kHz
Flatness <2.0 dB pk-pk, 20 Hz - 20 kHz
(measured using averaged 1/3 octave
analysis)
Chirp Source
Time Record Continuous or Burst
Output Sine sweep across the FFT span
Flatness ±0.25 dB, 1.0 Vpk
Swept Sine Source
Auto Functions Source level, input range and
frequency resolution
Dynamic Range 145 dB
Arbitrary Source
Amplitude Range ±5 V
Record Length 2 Msamples (playback from arbitrary
waveform memory or capture buffer).
Variable output sample rate.
General
Monitor Monochrome CRT, 800H by 600V
resolution, 8.2 inch diagonal display
Interfaces IEEE-488, RS-232 and Printer
interfaces standard.
All instrument functions can be
controlled through the IEEE–488 and
RS-232 interfaces. A PC (XT)
keyboard input is provided for
additional flexibility.
Hardcopy Print to dot matrix and PCL
compatible printers. Plot to HP-GL or
Postscript plotters. Print/Plot to
RS-232 or IEEE–488 interfaces or to
disk file. Additional file formats
include GIF, PCX and EPS.
Disk 3.5" DOS compatible format, 1.44
Mbytes capacity. Storage of displays,
setups and hardcopy data.
Preamp Power Power connector for SRS
preamplifiers.
Power 70 Watts, 100/120/220/240 VAC,
50/60 Hz
Dimensions 17"W x 8.25"H x 24"D
Weight 56 lbs.
Warranty One year parts and labor on materials
and workmanship.
Transient Capture
Mode Continuous real-time data recording to
memory.
Maximum Rate 262,144 samples/sec for both inputs
Max. Capture Length 2 Msamples (single input)
8 Msamples with optional memory
Octave Analysis
Standards Conforms to ANSI standard
S1.11-1986, Order 3, Type 1-D.
Frequency Range Band centers:
Single Channel
1/1 Octave
0.125 Hz - 32 kHz
1/3 Octaves 0.100 Hz - 40 kHz
1/12 Octaves 0.091 Hz - 12.34 kHz
Two Channels
1/1 Octave
0.125 Hz - 16 kHz
1/3 Octaves 0.100 Hz - 20 kHz
1/12 Octaves 0.091 Hz - 6.17 kHz
Accuracy <0.2 dB (one second stable average,
single tone at band center)
Dynamic Range 80 dB (1/3 octave, two second stable
average) per ANSI S1.11-1986
Sound Level Impulse, Peak, Fast, Slow and Leq per
IEC 651-1979 Type 0
Order Tracking
Resolution Up to 400 lines
Amplitude Accuracy ±1 dB (typ.)
Displays Order map (mag and phase), order
track (mag and phase), orbit
Curve Fit and Synthesis
Type 20-pole/20-zero non-iterative rational
fraction fit.
Output Format Pole-zero, polynomial, or pole-residue
Source Output
Amplitude Range 0.1 mVpk to 5 Vpk
Amplitude Resolution 0.1 mVpk
Offset Adjust ±5 V
Output Impedance <5
Ω
, ±100 mA peak output current
Sine-Source
Amplitude Accuracy ±1% of setting, 0 Hz to 102.4 kHz
0.1 Vpk to 5.0 Vpk, high impedance
load
Harmonics, SubHarm. 0.1 Vpk to 5 Vpk
and Spurious Signals <-80 dBc (fundamental <30 kHz)
<-75 dBc (fundamental <102 kHz)
Two Tone Source
Amplitude Accuracy ±1% of setting, 0 Hz to 102.4 kHz,
0.1 Vpk to 5 Vpk, high Z load
Harmonics, SubHarm. <-80 dBc, 0.1 Vpk to 2.5 Vpk
White Noise Source
Time Record Continuous or Burst
Bandwidth DC to 102.4 kHz or limited to span