Audio Precision Portable One Plus Access User Manual

Phase Measurement Related
Measurement Ranges
±180, +90/-270, or -90/+270 deg
Accuracy
20 Hz-20 kHz
±2.0 deg
10 kHz-50 kHz
±5.0 deg
Resolution
0.1 deg
Minimum Input
25 mV, both inputs
Wideband Amplitude/Noise Function
Measurement Range
<1 µV to 140 Vrms [-118 dBu to + 45 dBu]
Accuracy (1 kHz)
±0.2 dB [±2.3 %] unweighted
Flatness (1 kHz ref)
20 Hz-20 kHz
±0.05 dB
10 Hz-50 kHz
±0.2 dB
50 kHz-120 kHz
±0.5 dB (-3 dB BW typically >300 kHz)
Bandwidth Limiting Filters
LF -3 dB <10 Hz,
400 Hz ±5% (3-pole)
HF -3 dB
22 kHz ±5% (5-pole)
4
,
30 kHz ±5% (3-pole),
80 kHz ±5% (3-pole), or
>300 kHz
Weighting filters ANSI-IEC “A” per IEC 179
CCIR-QPK per CCIR Rec 468
CCIR-ARM per Dolby Bulletin 19/4
CCIR-1k (rms, 0 dB at 1 kHz)
CCIR-2k (rms, 0 dB at 2 kHz)
Optional Filters
up to 2 (Aux 1 and Aux 2)
Detection
RMS (τ = 60 ms),
AVG,
QPk per CCIR Rec 468,
Residual Noise
22 Hz-22 kHz BW
≤1.5 µV [-114 dBu]
A-weighted
≤1.0 µV [-118 dBu]
CCIR-QPk
≤5.0 µV [-104 dBu]
Bandpass Amplitude Function
Tuning Range (f
o
) 20 Hz to 120 kHz
Note 4 Combined with 22 Hz highpass per CCIR Rec 468.
G Specifications
Appendix G - Specifications
G-4 Portable One Plus Access User's Manual
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Audio Precision Portable One Plus Access Specifications

General

Brand	Audio Precision
Model	Portable One Plus Access
Category	Test Equipment
Language	English