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  9. Audio Technica UniLine unipoint U857QMU User manual

Audio Technica UniLine unipoint U857QMU User manual

User Manual
UniLine™ Condenser Quick-mount Gooseneck Microphone U857QMU
■Features
■Notes on use
■Connection procedure
This product requires 48 V
DC phantom power.
Output terminals
PIN1 (ground)
PIN3
(cold)
PIN2 (hot)
■Specifications
Fixed-charge back plate, permanently polarized condenser
Line Cardioid (Unidirectional)
30-20,000 Hz
80 Hz, 18 dB/octave
-35 dB (17.7 mV) re 1V at 1 Pa
250 ohms
135 dB SPL (1 kHz at 1% THD)
115 dB (1 kHz at Max SPL)
74 dB (1 kHz at 1 Pa)
11-52 V DC, 2 mA typical
Flat, roll-off
543.0 mm long
165 g
12.2 mm head diameter, 18.9 mm base diameter,
•1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL
*Typical, A-weighted, using Audio Precision System One.
■Polarpattern
■Frequency response
■Dimensions
180°
150°
120°
90°
60°
30°
0°
330°
300°
270°
240°
210°
10 dB
1k 10k 100k10010
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
Global Support Contact: www.at-globalsupport.com
16-MAY-2019 Form No.ATGC-L0427-23
Response in dB
Frequency in Hertz
LEGEND
0°, 50cm
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
(Unit: mm)
Thank you for purchasing this product. Before using the product, read through
the user manual to ensure that you will use the product correctly.
Please keep this manual for future reference.
The U857QMU stands 543mm from the table or podium, and require 11V to 52V
phantom power for operation.
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.
Connect the output terminals of the microphone to a device that has a
microphone input (balanced input) compatible with a phantom power supply.
The output connector is an XLRM-type with polarity as shown in the figure
below.
For product improvement, the product is sublect to modification without notice.
10
0
-10
-20
-30
20
• Designed for high-quality sound reinforcement, professional recording and
broadcasting
• UniLine™ polar pattern provides narrow 90° acceptance angle
• Superior off-axis rejection for maximum gain before feedback
• UniGuard™ RFI-shielding technol-ogy offers outstanding rejection of radio
frequency interference (RFI).
• Easy-to-adjust, rugged, small-diameter, alternating gooseneck with virtually no
“memory” permits quick positioning into desired shape
• UniSteep®filter provides a steep low-frequency attenuation to improve sound
pickup without affecting voice quality
• Self-contained electronics eliminate need for external power module
• Two-stage foam windscreen yields dramatically improved resistance to P-pops
and other breath blasts
• Quick-mount design with 3-pin XLRM-type connector insert at base plugs into
any standard XLRF-type surface or cable connector
• Optional shock mount attenuates noise, shock and vibration transmitted
through the mounting surface
■Safety precaution
■Cautions for the product
Although this product was designed to be used safely, failing to use it correctly
may result in an accident. To ensure safety, observe all warnings and cautions
while using the product.
• Do not subject the product to strong impact to avoid malfunction.
• Do not disassemble, modify or attempt to repair the product.
• Do not handle the product with wet hands to avoid electric shock or injury.
• Do not store the product under direct sunlight, near heating devices or in a hot,
humid or dusty place.
Integral 3-pin XLRM-type
Element
Polar pattern
Frequency response
Low Frequency response
Open circuit sensitivity
Impedance
Maximum input sound level
Dynamic range (typical)
Signal-to-noise ratio*
Phantom power requirements
Switch
Weight
Dimensions
Output connector
Included accessories AT8154 two-stage foam windscreen
Roll-off
132.0 411.0
18.9
12.2
543.0
超指向性 快速安装式 专业型鹅颈式会议话筒 U857QMU
本产品使用直流 48V 幻象电源。
输出端子
针脚1(接地)
针脚3
(负)
针脚2(正)
■ 规格
固定充电背板,永久极化电容体
超指向性(单指向性)
30-20,000 Hz
80 Hz,18 dB/octave
-35 dB(17.7mV)re 1V at 1Pa
250 欧姆
平直,高通滤波
165克
12.2 mm - 收音头直径, 18.9 mm - 底部插头直径
543.0 mm - 长度
内置 XLRM-3 针卡农公头
元件
指向性
频率响应
高通滤波
开路灵敏度
阻抗
135 dB SPL(1kHz 于 1% THD)
115 dB (1kHz 于最大声压级)
最大输入声压级
动态范围(典型)
开关
重量
尺寸
输出接口
附带配件AT8154 双层式防风海棉罩
• 1 帕= 10 达因/平方厘米= 10 微巴= 94 dB SPL
* 典型,A 计权,使用 Audio Precision System One
因产品改进,本产品会随时改装,恕不另行通知。
■指向性
■频率响应
■尺寸
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
全球支持联系:www.at-globalsupport.com
响应单位是 dB
频率单位是赫兹
图例
0°,50 厘米
比例是每分隔线 5 分贝
图例
200 赫兹
1 千赫兹
5 千赫兹
8 千赫兹
(单位:毫米)
用戶手冊
感谢您购买本产品。在使用产品之前,请全文浏览本用户手册以确保您将正确地
使用本产品。请妥善保存本手册,以供将来参考。
■产品特点
• 设计于高质量收音、专业录音、电视广播、会议等高要求的收音应用
• UniLine™ 超指向收音头,提供窄角度90°的收音角度
• 良好的隔音设计,在最大增益时仍能避免啸叫声的出现
• UniGuard™ - 射频干扰(RFI)屏敝技术,提供杰出的防止射频干扰能力,避免收音
时受到如手提电话等的干扰
• 易于调节、耐用、细小、可反覆摆动而没有“记忆”效果的鹅颈弯曲结构,可快
速及随意地把话筒收音头固定在合适的位置
• UniSteep® - 高通滤波器,提供了一个高效能的高通滤波,把低频噪声作出衰减而
无损话音的收音质量
• 内置话筒前置放大器供电组件,无需使用外置供电模组
• 附有双层式防风海棉罩,可减低在讲话时收到不雅的喷气声及其他风声的情况出
现
• 快速安装设计,在话筒接线端为标准的3针卡农公头XLRM,可连接到以任何以3
针卡农母头XLRF设计的会议话筒座上,亦可在有需要时直接连线到调音台上
• 可选配桌面防震话筒座,把话筒固定安装在桌面或其他板面上,并能减低碰撞平
面时产生的敲击声及震动声
■使用注意事项
U857QMU 全长为543mm,可安装在桌面或控制板上使用。以直流11V 至52V 幻象
供电工作。
把话筒暴露于高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,而极高湿度也应避免。
■连接步骤
将话筒的输出端子连接到具有兼容幻象电源的话筒输入(平衡输入)的设备。输
出接口是 XLRM 型接口,其极性如下图所示。
10 dB
1k 10k 100k10010
10
0
-10
-20
-30
20
16-MAY-2019 Form No.ATGC-L0427-23
■安全预防措施
■本产品注意事项
虽然本产品采用安全设计,但使用不当仍可能发生事故。为了确保安全,使用本
产品时请注意全部警告和提醒。
• 设切勿让本产品遭受强烈冲击,以避免发生故障。
• 屏切勿拆开、改装或尝试维修本产品。
• 独切勿用湿手握持本产品,以免触电或受伤。
• 小切勿将本产品存放在阳光直射的地方、加热装置附近或者炎热、潮湿或多尘的
地方。
高通滤波
74 dB (1kHz at 1Pa)
直流 11-52V,2mA 典型
信噪比*
幻象供电
180°
150°
120°
90°
60°
30°
0°
330°
300°
270°
240°
210°
132.0 411.0
18.9
12.2
543.0

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