Audio-Technica U857R Bedienungsanleitung


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U857R / U857RL
CARDIOID CONDENSER ADAPTER-MOUNT
GOOSENECK MICROPHONE
- Designed for high-quality sound
reinforcement, professional record-
ing and broadcasting.
- Superior off-axis rejection for maxi-
mum gain before feedback.
ogy offers outstanding rejection of
radio frequency interference (RFI).
- Easy-to-adjust, rugged, small-
dimeter, alternating gooseneck with
virtually no memory permits quick
positioning into desired shape.
- UniSteep
®
lter provides a steep
low-frequency attenuation to im-
prove sound pickup without affect-
ing voice quality.
- Accepts interchangeable elements
to permit angle of acceptance from
90° to 360°.
- Two-stage foam windscreen yields
dramatically improved resistance to
P-pops and other breath blasts.
- Direct mounts to any "-27 stand,
or to included threaded mounting
ange.
The U857R stands 305mm from the table or podium, it is also
available in a 421mm version as U857RL. The two models are
identical in all other respects.
The microphone requires 11V to 52V DC phantom power for
operation.
Output from the power module's XLRM-type connector is low
impedance (Lo-Z) balanced. The signal appears across Pins
2 and 3; Pin 1 is ground (shield). Output phase is "Pin 2 hot" -
positive acoustic pressure produces positive voltage at Pin 2.
At integral 80 Hz high-pass UniSteep
®
filter provides easy
switching from a at frequency response to a low-end roll-off.
The roll-off position reduces the microphone's sensitivity to
popping in close vocal use. It also reduces the pickup of low-
frequency ambient noise (such as trafc, air-handling systems,
etc.), room reverberation and mechanically coupled vibrations.
The microphone features a 3m permanently attached miniature
cable. It connects to provided AT8538 power module via a spe-
cial TA3F-type connector designed to optimize RFI immunity.
Avoid leaving the microphone in the open sun or in areas where
temperatures exceed 43°C for extended periods. Extremely
high humidity should also be avoided.
SPECIFICATIONS
ELEMENT
POLAR PATTERN
FREQUENCY RESPONSE
LOW FREQUENCY ROLL-OFF
OPEN CIRCUIT SENSITIVITY
IMPEDANCE
MAXIMUM INPUT SOUND LEVEL
DYNAMIC RANGE (TYPICAL)
SIGNAL-TO-NOISE RATIO
PHANTOM POWER REQUIREMENTS
SWITCH
WEIGHT U857R
U857RL
POWER MODULE
DIMENSIONS U857R
U857RL
BOTH
POWER MODULE
OUTPUT CONNECTOR
CABLE
OPTIONAL INTERCHANGEABLE
ELEMENTS
ACCESSORIES FURNISHED
Fixed-charge back plate
permanently polarized condenser
Cardioid
30-20,000 Hz
80 Hz, 18 dB/octave
-39 dB (11.2 mV) re 1V at 1 Pa
250 ohms
139 dB SPL, 1 kHz at 1% T.H.D.
115 dB, 1 kHz at Max SPL
70 dB, 1 kHz at 1 Pa
11-52V DC, 2 mA typical
Flat, roll-off
124 g
131 g
81 g
305 mm - long
421 mm - long,
12.2 mm - head diameter
92.9 mm - long, 18.9 mm - diameter
Integral 3-pin XLRM-type
3m long, 3.2mm diameter,
2-conductor shielded cable with
TA3F-type connector
UE-C cardioid (120°)
UE-H hypercardioid (100°)
UE-O omnidirectional (360°)
UE-UL UniLine (90°)
AT8538 power module;
AT8153 two-stage foam windscreen
Cable
10 dB
20k10k5k2k1k50020010050
8 kHz
200 Hz
1 kHz
5 kHz
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
Optional Accessories:
AT8601 Desk stand.
AT8614 Desk stand with thru-hole.
AT8506 four-channel 48V phantom power
supply (AC powered).
AT8801/EU single-channel 48V phantom
power supply (AC powered).
Polar Pattern
Frequency Response
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
Frequency in Hertz
LEGEND
12 or more on axis
Roll-off
Response in dB
FORM No. ATGC-L0004-05-E
Machida Tokyo Japan
U857R / U857RL
-
设计于质量收
专业录
广 要求的收
-
良好的隔音在最大增益时
- UniGuard -
(RFI)
止射
避免收时受到如手提电
话等的干扰。
-
易于调节
意地把话
筒收
- UniSteep
®
-
通滤波器提供了
一个效能的通滤波把低
的收
-
更换式的收头设计可选配适
合的收头配合实
角度可由
90
°
360
°
-
有双层式防风 可减低
的喷气声及其
-
螺帽安装设计可直接把话筒安
装在任何
"-27
U857R
全长为
305mm
可安装在或话筒架上使用
另外
U857RL
全长为
421mm
而两个型号的其他细节均相同
话筒只使直流
11V
52V
幻象供电操作。
抗的平衡音频输出,音频信号以卡农公头的
2
号及
3
号针脚输
1
号针脚则为地线
(
屏蔽
)
连接
2
号针脚上。
内置
UniSteep
®
通滤波电路可轻易由平直的
开启
80 Hz
以下的收通滤波器可减低
话筒在近距离讲话收时的喷气声并可减低收环境中低
(
如外间汔车引擎声空调系统的声等
)
房间中的回声及机
械性的动声。
3m
线
TA3F
插头连
接于
AT8538
供电器上。
把话筒温中可能导致输出电平逐渐及永久性减弱应避
免将话筒留在日晒的地方或长时间置于温度超过
43
°
C
的地方
湿度也应避免。
技术指标
收音头
指向特性
频率响应
高通滤波
开通灵敏度
输出阻抗
最大承受声压
动态范围 (典型)
讯噪比
幻象供电
开关
重量
U857R
U857RL
供电模组
外形尺寸
U857R
U857RL
共同为
供电模组
输出连接器
连接线
可转换收音头
附属品
固定充电背板
电型电容式
心形单指向性
30-20,000 Hz
80 Hz, 18 dB/octave
-39 dB (11.2 mV)
1V
1 Pa
250
欧姆
139 dB
声压
, 1 kHz
1% T.H.D.
115 dB, 1 kHz
于最声压
70 dB, 1 kHz
1 Pa
直流
11-52V
耗电
2 mA
典型
平直,高通滤波
124
131
81
305 mm -
421 mm -
12.2 mm -
头直径
92.9 mm -
x 18.9 mm
直径
内置式
3
针卡农公头
3m
3.2 mm
直径连接线
2
蕊线连屏蔽电线
TA3F
插头连接
UE-C
心形指向
(120°)
UE-H
超心形指向
(100°)
UE-O
全方向性
(360°)
UE-UL UniLine
超指向性
(90°)
AT8538
供电模组
AT8153
双层式防风海棉罩
连接线
10 dB
20k10k5k2k1k50020010050
8 kHz
200 Hz
1 kHz
5 kHz
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
选择配件
:
AT8601
座桌式话筒座
AT8614
座桌式话筒座
(
带导孔
)
AT8506
四通通
48V
幻象供电器
(
交流供电
)
AT8801/EU
单通道
48V
幻象供电器
(
交流供电
)
指向特性
频率特性
声压曲线
1
刻度
5 dB
频率
频率
(
赫兹
)
电平
平直
通滤波
响应电平 (dB)
FORM No. ATGC-L0004-05-C
Machida Tokyo Japan


Produktspezifikationen

Marke: Audio-Technica
Kategorie: Mikrofon
Modell: U857R

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