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VT
RTA-168
(US$299.95, Order now)
Download
Hardware Manual
PC
based USB Real Time Analyzer, Sound Level Meter, Distortion Analyzer
Download
and try the fully functional Multi-Instrument software using your sound
card as the ADC and DAC device!
Package
Contents
1. Measurement microphone and its accessories (a
windshield and a microphone clip)
2. XLR-to-USB Converter
3.
USB cable (1.5 m)
4.
CD (contains the copy-protected Multi-Instrument Software)
5.
USB hardkey (contains a Multi-Instrument Standard
License)
6.
Audio Test CD (contains a list of audio test tones
and noises)
7.
1/8” TRS cable (1.8m)
8.
Black Soft Pouch Case
9.
One-to-one Sound Level Calibration Data
10.
One-to-one Microphone Calibration Data (only provided
in RTA-168B)
VT
RTA-168 Series Hardware Configuration
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RTA-168A
US$299.95
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RTA-168B
US$349.95
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Measurement
Microphone
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ECM999
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EMM-6
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XLR-to-USB
Converter
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VT
XLR-to-USB Pre
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VT
XLR-to-USB Pre
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Overall
VT RTA-168 Specifications
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Frequency
Range
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20Hz ~
20kHz
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Sampling
Rate
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44.1kHz /
48kHz
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Bit Depth
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16 Bit
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Number of
Input Channels
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1
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Frequency
Accuracy
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0.01%
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Frequency
Weighting
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Flat, A,
B, C, ITU-R 468
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Time
Weighting
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Linear,
Exponential
(Equivalent
continuous sound level (Leq) fully complies with IEC61672)
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Sound
Level Measurement Range
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25dB ~
110dB, adjustable through both the hardware gain switch and
software gain slider. Recalibration is not required after the
gain setting changes.
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Sound
Level Measurement Accuracy
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+/- 0.3
dB at 94dB, 1kHz after calibration
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Sound
Level Calibration
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Calibrated
using Type 1 Sound Level Calibrator
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Octave
Analysis
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1/1,1/3,1/6,1/12,1/24,1/48,
1/96
(Complies
with IEC61260)
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Other
Functions
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THD,
THD+N, SINAD, SNR, SMPTE IMD, DIN IMD, CCIF2 IMD, Frequency
Response, etc.
Much
more functions are described in the software manual.
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System
Requirements
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Windows
98/ME/NT/2000/XP/2003/VISTA/7, 32 bit or 64 bit. Minimum
Screen Resolution: 1024 ´
600
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Measurement
Microphone ECM999 Specifications
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Transducer
Type
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Back
Electret Condenser
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Element
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Pressure,
FET Preamplifier
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Polar
Pattern
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Omni-directional
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Frequency
Response
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20Hz~20kHz
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Open
Circuit Sensitivity (at 1kHz)
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14mV/Pa
(-37dBV/Pa)
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Rated
Impedance
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200W
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Minimum
Load Impedance
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3000W
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Equivalent
Noise Level (A-weighted)
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22dB
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Max.
SPL (1kW load)
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132dB
(THD<1%, 1kHz)
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Dynamic
Range (1kW load)
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106dB
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Pin
Polarity
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Pin
2 outputs positive voltage (with reference to Pin 3) when
diaphragm receives positive pressure. (Diaphragm moving
inward)
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Connector
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3
pin male XLR
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Finish
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Rugged
Metal Construction, Solemn black finish
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Weight
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150g
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Signal-to-Noise
Ratio
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70dB
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Power
Supply
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9~52V
Phantom
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Dimensions
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F21.0
´ 193.0 mm
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Environmental
Conditions
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Temperature:
-10°C ~ +50°C
Relative
Humidity: 0~95%
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RoHS
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Compliance
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Typical
Polar Pattern
Typical
Frequency Response
Measurement
Microphone EMM-6 Specifications
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Transducer
Type
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6mm
Electret Condenser
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Polar
Pattern
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True
Omni-directional
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Element
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Low
Noise FET Input reduces low-frequency distortion
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Frequency
Response
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18Hz~20kHz
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Sensitivity
(at 1kHz into 1kW)
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10mV/Pa
(-40dBV/Pa)
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Impedance
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200W
between Pin 2 and Pin 3
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Max.
SPL (1kW load)
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127dB
(THD<1%, 1kHz)
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Connector
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Gold
plated 3 pin male XLR
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Finish
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Rugged
Metal Construction, Silver finish
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Weight
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144g
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Signal-to-Noise
Ratio
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70dB
A-weighted
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Power
Supply
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15~52V
Phantom
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Dimensions
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F21.0
´ 193.0 mm
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Environmental
Conditions
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Temperature:
-10°C ~ +50°C
Relative
Humidity: 0~95%
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RoHS
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Compliance
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Calibration
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Individually
calibrated. Calibration file included.
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Typical
Frequency Response
Note:
This is only a typical frequency response chart. EMM-6 measurement microphone
was calibrated individually by its US microphone manufacturer and the calibration data is included in the
product package.
VT
XLR-to-USB Pre Specifications
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Frequency
Response
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20Hz
~ 20kHz: -0.2dB / -0.1dB
-3dB: 6Hz ~ 23500Hz
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Sampling
Rate
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44.1kHz
/ 48kHz
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Bit
Depth
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16
Bit
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Number
of Input Channel
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1
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THD
(1kHz, -1.9dBFS)
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0.0062%
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THD+N
(1kHz, -1.9dBFS)
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0.013%
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SMPTE
IMD (-1.9dBFS)
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0.02%
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DIN
IMD (-1.9dBFS)
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0.02%
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IMD
at 1kHz (19kHz and 20kHz, -1.9dBFS)
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0.002%
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Dynamic
Range (hardware gain switch at LO)
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78.4
dB
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Description
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· Studio-quality
USB microphone pre-amplifier
· Supplies
48V phantom power for condenser microphones
·
No
special drivers required
·
Fully
balanced low noise analog front end
· 3-position
analog gain control
· Compact
travel size F22 mm x
144 mm long
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Typical
Frequency Response
Typical
THD and THD+N Measurement
Typical
IMD Measurement
Flexible
Hardware Connections
Method
1
Method
2
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