Audio-Technica ATM73a Bruksanvisning

Audio-Technica hodetelefon ATM73a

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ATM73a

CARDIOID CONDENSER HEADWORN MICROPHONE

- Ideal for drummers, keyboard players or anyone requiring hands-free

operation.

- Comfortable, unobtrusive headband design with side-of-mouth pickup.

- Belt-mounted power module operates on battery or phantom power.

- Cardioid polar pattern improving isolation of desired sound source.

- Also available as: ATM73cW - less power module; 1.4m cable terminated

with locking 4-pin connector for A-T UniPak

™

wireless systems.

The ATM73a required 11V to 52V DC phantom power or a 1.5V AA

battery for operation. A battery need not be in place for phantom power

operation.

Battery installation: Remove the cap from the top of the power module.

Insert a fresh 1.5V AA battery (“+” end toward the cap release button),

then reassemble the power module. Alkaline batteries are recommended

for longest lift. Remove the battery during long-term storage.

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.

An integral 80Hz 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.

For maximum stability and minimum visibility, the headband should be

worn around the back of the head, with each cushioned support pad

resting on the temple in front of the ear. The cable should remain clipped

to the headband, with slack at the boom connection. The headset is

designed so the microphone descends from the left support pad.

Avoid leaving the microphone in the open sun or in areas where

temperatures exceed 40°C for extended periods. Extremely high humidity

should also be avoided.

FORM No. ATGC-L0035-06-E

Machida • Tokyo • Japan

SPECIFICATIONS

ELEMENT

Fixed-change back plate permanently

polarized condenser

POLAR PATTERN Cardioid

FREQUENCY RESPONSE 40-15,000 Hz

LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave

OPEN CIRCUIT SENSITIVITY

(Phantom / Battery)

-55 dB (1.7 mV) /

-56 dB (1.5 mV) re 1V at 1 Pa

IMPEDANCE (Phantom / Battery) 200 ohms / 270 ohms

MAXIMUM INPUT SOUND LEVEL

(Phantom / Battery)

146 dB / 132 dB SPL,

1 kHz at 1% T.H.D.

DYNAMIC RANGE (typical)

(Phantom / Battery)

111 dB / 97 dB,

1 kHz at Max SPL

SIGNAL-TO-NOISE RATIO 59 dB, 1 kHz at 1 Pa

PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical

BATTERY TYPE 1.5V AA/UM3

BATTERY CURRENT/LIFE 0.4 mA / 1200 hours typical (alkaline)

SWITCHES Off, on-at, on-roll-off

WEIGHT MICROPHONE

POWER MODULE

31 g

139 g

DIMENSIONS HEADSET

MICROPHONE

POWER MODULE

165.0 mm - nominal at widest point,

67.0 mm - exible boom,

10.0 mm - diameter,

84.0(H) x 63.0(W) x 22.9(D) mm

OUTPUT CONNECTOR Integral 3-pin XLRM-type

CABLE

1.4 m long (permanently attached to

microphone), 2.6 mm diameter,

2-conductor shielded cable with TA3F-

type connector

ACCESSORIES FURNISHED

AT8531 power module;

AT8128 windscreen;

AT8125l windscreen; battery

10 dB

20k10k5k2k1k50020010050

8 kHz

200 Hz

1 kHz

5 kHz

0°

330°

300°

270°

240°

210°

180°

150°

120°

90°

60°

30°

Polar Pattern

Frequency Response

SCALE IS 5 DECIBELS PER DIVISION

LEGEND

Frequency in Hertz

LEGEND

12” or more on axis

Response in dB

Roll-off

10 dB

20k10k5k2k1k50020010050

8 kHz

200 Hz

1 kHz

5 kHz

0°

330°

300°

270°

240°

210°

180°

150°

120°

90°

60°

30°

指向特性

频率特性

声压曲线

刻度

5 dB

频率

(

赫兹

)

电平

平直

响应电平 (dB)

FORM No. ATGC-L0035-06-C

Machida • Tokyo • Japan

心形指向性头戴夹式话筒

专为鼓手、键盘手及其他乐手提供免提型话音收音

。

提供舒适及不显眼的设计，及近距离收音

。

配置盒式供电模组，可使用电池或幻象供电操作

。

心形指向性收音，能有效减低旁边及后方的杂声干扰

。

设有

ATM73cW - 1.4m型号不设供电模组，长连线，专为鐵

三角UniPak

™

无线系统使用。

ATM73a 11V 52V应用于专业收音工作，需要提供至幻象供电

或电池操作，当使用幻象电源操作时，可以不安装电1.5V AA

池。

安装电池时，把供电模组顶部的电池盒盖打开，确认电池的

极性

(

跟随电池盒内的标记

)

，放入一枚新的

5V AA

电池，再

盖回电池盖。建议使用碱性电池，而长时间不使用时，请把

电池取出。

供电模组的卡农输出端为低阻抗平衡输出，话筒音频信XLRM

号最终以卡农公头的

号及

号针脚输出，而

号针脚则为地线

(

屏蔽

)

连接

。输出相位将以正相位电平设于2

号针脚上

。

内置

UniSteep

高通滤波电路，可轻易由平直的频率响应，开

启为于

80 Hz

以下衰减的收音效果，应用高通滤波器可减低话

筒在近距离讲话收音时的喷气声，并可减低收音环境中低频噪

声

(

如外间汔车引擎声，空调系统的风声等

)

，房间中的回声及

机械性的震动声。

作出最大的稳定性及最小的阻碍，请把话筒头环调校至头的

后方，并把两旁的垫子轻贴在太阳穴的位置。连接线应夹持

于头环上，并应提供一些松弛给话筒杆活动。收音头设计于

右方，配戴时请注意话筒的方向。

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

的

地方，而极高湿度也应避免。

技术指标

收音头固定充电背板，静电型电容式

指向特性心形指向性

频率响应

40-15,000 Hz

高通滤波

80 Hz, 18 dB/octave

开通灵敏度

(

幻象供电

电池

)

-55 dB (1.7 mV) /

-56 dB (1.5 mV)

以

于

1 Pa

输出阻抗

(

幻象供电

电池

) 200 / 270

欧姆

最大承受声压

(

幻象供电

电池

)

146 dB /

132 dB

声压

, 1 kHz

于

1% T.H.D.

动态范围

(

幻象供电

电池

) 111 dB / 97 dB, 1 kHz

于最高声压

讯噪比

59 dB, 1 kHz

于

1 Pa

幻象供电直流

11-52V,

耗电

2 mA

典型

电池种类

1.5V AA

型

号电池

耗电/电池寿命

0.4 mA / 1200

小时

(

碱性电池

)

开关关闭、开启

平直、开启

高通滤波

重量

话筒

供电模组

克

/ 139

克

外形尺寸 头环

 话筒

 供电模组

165.0 mm -

宽度

,67.0 mm -

话筒杆

10.0 mm -

直径

84.0(

高

) x 63.0(

宽

) x 22.0(

厚

) mm

输出连接器

供电模组内置

XLRM-3

针卡农公头

连线

1.4 m -

长

, 2.6 mm -

直径，话筒固

定连接，一端为

TA3F

屏蔽接头。

附属品

AT8531

供电模组；

AT8128

防风棉；

AT8125

防风棉；

电池

ATM73a

高通滤波

Produkspesifikasjoner

Merke:	Audio-Technica
Kategori:	hodetelefon
Modell:	ATM73a
Strømkilde:	Batteri
Tilkoblingsteknologi:	Koblet med ledninger (ikke trådløs)
Strømforbruk:	0.4 mA
Mikrofonretningstype:	Kardioide
Driftsspenning:	1.5 V
Mikrofonfrekvens:	40 - 15000 Hz
Batteritype:	AA
Mottakervekt:	139 g
Mikrofonvekt:	31 g
Kabellengde:	1.4 m
Produktfarge:	Grå
Batteriliv (maks.):	1200 timer
Enhetsgrensesnitt:	mini XLR (3-pin)
Signal-til-støy-forhold (SNR):	59 dB
Modell/Type:	Scene/opptreden
Mikrofonsensitivitet/mikrofonfølsomhet:	-55 dB
Inngangsimpedans mikrofon:	270 Ω
Dynamisk omfang:	111 dB
Trådløs mottaker (B x D x H):	63 x 22 x 84 mm