Audio-Technica AT803B Manual

Audio-Technica Mikrofon AT803B

Læs gratis den danske manual til Audio-Technica AT803B (2 sider) i kategorien Mikrofon. Denne vejledning er vurderet som hjælpsom af 40 personer og har en gennemsnitlig bedømmelse på 4.6 stjerner ud af 20.5 anmeldelser. Har du et spørgsmål om Audio-Technica AT803B, eller vil du spørge andre brugere om produktet?

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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.

Produkt Specifikationer

Mærke:	Audio-Technica
Kategori:	Mikrofon
Model:	AT803B

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