Audio-Technica AT803B Handleiding

Audio-Technica Microfoon AT803B

Lees hieronder de 📖 handleiding in het Nederlandse voor Audio-Technica AT803B (2 pagina's) in de categorie Microfoon. Deze handleiding was nuttig voor 26 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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broadcast & production microphones

AT803

Omnidirectional Condenser Lavalier Microphone

Features

• Clip-on lavalier mic provides high intelligibility for lecturers and

stage/TV performers

• Provides excellent yet unobtrusive sound pickup

• Offers the convenience of battery or phantom power operation

• Rugged design and construction for reliable performance

• UniSteep® lter provides a steep low-frequency attenuation to

improve sound pickup without affecting voice quality

Description

The AT803 is a miniature clip-on/lavalier condenser microphone with

an omnidirectional polar pattern. It is designed for quality sound

reinforcement, professional recording, television and other demanding

sound pickup applications.

The microphone is intended to be worn on the clothing or hidden in props

for excellent yet unobtrusive sound pickup. The wide-range capability of the

microphone ensures clean, accurate reproduction with high intelligibility for

speakers, presenters and other performers. Its small size makes it ideal for

use in applications where minimum visibility is required.

The microphone requires 11V to 52V phantom power or a 1.5V AA battery

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

The microphone includes a 1.8 m (6') permanently attached miniature

cable. Its free end connects to the provided AT8531 power module via a

TA3F-type connector. The output of the power module is a 3-pin XLRM-

type connector.

A 3-position switch in the power module permits choice of off, on/at

response or on/low-roll-off (via integral 80 Hz high-pass UniSteep® lter).

The roll-off position reduces the pickup of low-frequency ambient noise.

The microphone comes equipped with a power module, a clothing clip, a

windscreen, a battery and a protective carrying case.

Operation and Maintenance

The AT803 requires 11V to 52V phantom power or a 1.5V AA battery for

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

To install the battery, 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. For longest battery life, the switch

should remain off except when the microphone is in use. Alkaline

batteries are recommended for longest life. Remove the battery during

long-term storage.

Output 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.

To avoid phase cancellation and poor sound, all mic cables must be wired

consistently: Pin 1-to-Pin 1, etc.

A 3-position switch in the power module permits choice of off, on/at

response, or on/low-roll-off (via integral 80 Hz high-pass UniSteep® lter).

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. To engage the UniSteep® lter, slide

the switch toward the “bent” line. To turn the microphone on without

engaging the UniSteep® lter, slide the switch toward the at line.

For use as a lavalier, attach the microphone about six inches below the

chin. Anticipate movements that may cause the microphone to rub against

or be covered by clothing, and position the microphone to avoid it.

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

temperatures exceed 110° F (43° C) for extended periods. Extremely high

humidity should also be avoided.

Architect’s and Engineer’s Specications

The microphone shall be a xed charge condenser. It shall have an

omnidirectional polar pattern and a frequency response of 30 Hz to

20,000 Hz. The microphone shall operate from an external 11V to 52V DC

phantom power source or, alternatively, from a 1.5V AA/UM3 battery. It

shall be capable of handling sound input levels up to 135 dB (phantom)

or 121 dB (battery) with a dynamic range of 107 dB (phantom) or 93 dB

(battery). Nominal open-circuit output voltage shall be 6.3 mV (phantom)

or 5.0 mV (battery) at 1 V, 1 Pascal. Output shall be low impedance

balanced (200 ohms – phantom, 270 ohms – battery).

The microphone shall have a 1.8 m (6') permanently attached miniature

cable terminating in a TA3F-type output connector. The output connector

shall connect to a TB3M-type jack on the included power module. The

power module shall house the battery, and shall contain a switch that

permits choice of off, on/at response or on/low-roll-off (80 Hz). The

output of the power module shall be a 3-pin XLRM-type connector.

The microphone shall be 25.0 mm (0.98") long and have a diameter of

10.2 mm (0.40"). Weight shall be 2.8 grams (0.1 oz). The microphone

shall include a power module, a clothing clip, a windscreen, a battery

and a protective carrying case. Finish shall be low-reectance black.

The Audio-Technica AT803 is specied.

AT803

Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224

Audio-Technica Limited, Old Lane, Leeds LS11 8AG England

Specications

LEGEND

200 Hz

1 kHz

5 kHz

8 kHzSCALE IS 5 DECIBELS PER DIVISION

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

12" or more on axisLEGEND

Frequency in Hertz

Response in dB

10 dB

100

50 200 10k5k1k500 2k 20k

Roll-off

frequency response: 30–20,000 Hz

polar pattern

Fixed-charge back plate, permanently

polarized condenser

Omnidirectional

30-20,000 Hz

80 Hz, 18 dB/octave

Phantom: –44 dB (6.3 mV) re 1V at 1 Pa

Battery: –46 dB (5.0 mV) re 1V at 1 Pa

Phantom: 200 ohms

Battery: 270 ohms

Phantom: 135 dB SPL, 1 kHz at 1% T.H.D.

Battery: 121 dB SPL, 1 kHz at 1% T.H.D.

Phantom: 107 dB, 1 kHz at Max SPL

Battery: 93 dB, 1 kHz at Max SPL

66 dB, 1 kHz at 1 Pa

11-52V DC, 2 mA typical

1.5V AA/UM3

0.4 mA / 1200 hours typical (alkaline)

Off, on-at, on-roll-off

Microphone: 2.8 g (0.1 oz)

Power module: 139 g (4.9 oz)

Microphone: 25.0 mm (0.98") long,

10.2 mm (0.40") diameter

Power module: 84.0 mm (3.31") H x

63.0 mm (2.48") W x 22.0 mm (0.87") D

Power module: Integral 3-pin XLRM-type

1.8 m (6') long (permanently attached to

microphone), 2.6 mm (0.10") diameter,

2-conductor, shielded cable with TA3F-

type connector

AT8531 power module; AT8419 clothing

clip; AT8116 windscreen; battery;

protective carrying case

Element

Polar pattern

Frequency response

Low frequency roll-off

Open circuit sensitivity

Impedance

Maximum input sound level

Dynamic range (typical)

Signal-to-noise ratio1

Phantom power requirements

Battery type

Battery current / life

Switch

Weight

Dimensions

Output connector

Cable

Audio-Technica case style

Accessories furnished

In the interest of standards development, A.T.U.S.

offers full details on its test methods to other industry

professionals on request.

1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL

Typical, A-weighted, using Audio Precision System One.

Specications are subject to change without notice.

409

Product specificaties

Merk:	Audio-Technica
Categorie:	Microfoon
Model:	AT803B

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