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頁面 4 – MIPRO MT-801a Bodypack Transmitter User Manual

Page 4

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CAUTIONS

1. Performer should avoid holding the microphone over or near

the antenna section as this will deteriorate transmission
efficiency. Severe deterioration if performer directly covers up
the antenna section with both hands.

2. Many performers tend to hold the microphone by the top grille.

Unfortunately, this position seriously degrades both the sound
quality and directionality of a microphone. Even the most
expensive microphones will have its original sound quality
compromised by this method. Grabbing a microphone by the
grille will isolate the capsule's acoustic resonance circuit and or
change the capsule resonator's frequency. This results in an
inferior performance in both frequency response and the
separation of directionality. In addition, a palm's sound-
focusing effect will tend to strengthen resonances in certain
frequencies and can cause unwanted echo.

3. A proper technique is required for using directional

microphones because the distance between the microphone
and your mouth has a significant impact on sensitivity and
performance. There is an inverse relationship between
microphone sensitivity and the distance from the mouth to the
microphone. Consequently, performers with a ''weaker'' sound
level cannot expect to hold the microphone too far away from
their mouth and compensate by turning up the amplifier
volume to increase the sound level as this can easily cause
echo or feedback. In contrast, performers with a ''louder''
sound level should not hold the microphone too close as this
can easily result in distortion by causing the amplifier system
to be overloaded.

4. Furthermore, a large-diaphragm directional microphone has a

very distinct proximity effect. When the microphone is close to
the mouth, the bass response is strengthened as the distance
gets closer. Therefore, if a performer's sound is insufficient in
bass, they can hold the microphone closer and use the
proximity effect to help compensate for the lower bass level.
Conversely, if a performer's voice is too heavy in the bass
register, increasing the distance between the microphone and
their mouth will decrease the proximity effect and reduce the
bass response, thus making their voice become clearer and
brighter.

5. It is recommended to keep the grille and sponge windscreen

clean to avoid any substance blocking the proximity effect of
the microphone.

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UHF Handheld Transmitter

! Housing unchanged.

! Industry standard 4-pin mini-XLR (TA4F)

connector is utilized for quick screw lock

connection.

! Accepts lavalier, headworn microphone and

instrument inputs with level adjustments.

! High dynamic range allows high input level

without distortion.

! PLL design ensures transmission reliability.

! Efficient transmission, low power consumption

and extremely low handling noise.

KEY FEATURES

UHF Bodypack Transmitter

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