Audio-Technica AT803 Handleiding

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MINIATURE OMNIDIRECTIONAL CONDENSER MICROPHONE

- High intelligibility for lecturers and stage/TV performers

- Provides excellent yet unobtrusive sound pickup

- UniSteep® lter provides a steep low-frequency attenuation to

improve sound pickup without affecting voice quality

- Operates on battery or phantom power

The AT803 is designed to be worn as a lavalier or hidden in

loose clothing. For use as a lavalier, attach the microphone about

150mm 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.

The AT803 requires 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 life. 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.

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

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

An 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 is RoHS compliant–free from all substances

specied in the EU directive on hazardous substances.

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.

FORM No. ATGC-L0121-07-E

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

same as 1 kHz

Machida • Tokyo • Japan

SPECIFICATIONS

ELEMENT Fixed-charge back plate

permanently polarized condenser

POLAR PATTERNOmnidirectional

FREQUENCY RESPONSE30-20,000 Hz

LOW FREQUENCY ROLL-OFF80 Hz, 18 dB/octave

OPEN CIRCUIT SENSITIVITY

(Phantom / Battery)

-44 dB (6.3 mV) re 1V at 1 Pa

-46 dB (5.0 mV) re 1V at 1 Pa

IMPEDANCE (Phantom / Battery)200 ohms / 270 ohms

MAXIMUM INPUT SOUND LEVEL

(Phantom / Battery)

135 dB / 121 dB SPL,

1 kHz at 1% T.H.D.

DYNAMIC RANGE (typical)

(Phantom / Battery)

107 dB / 93 dB,

1 kHz at Max SPL

SIGNAL-TO-NOISE RATIO66 dB, 1 kHz at 1 Pa

PHANTOM POWER REQUIRMENTS11 - 52V DC, 2 mA typical

BATTERY TYPE1.5V AA/UM3

BATTERY CURRENT / LIFE0.4 mA / 1200 hrs typical (alkaline)

SWITCHES Off, on-at, on-roll-off

WEIGHTMICROPHONE

POWER MODULE

2.8 g

139 g

DIMENSIONS MICROPHONE

POWER MODULE

25.0 mm long, 10.2 mm diameter

84.0 mm H x 63.0 mm W x 22.0 mm D

OUTPUT CONNECTORIntegral 3-pin XLRM-type

CABLE 1.8 m long (permanently attached to

microphone), 2.6 mm diameter,

2-conductor, shielded cable with

TA3F-type connector

ACCESSORIES FURNISHEDAT8531 power module;

AT8417 clothing clip;

AT8116 windscreen;

battery;

protective carrying case

Roll-off

Product specificaties