Shure UP4 - Manual (Page 16)

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CHANGING THE TRANSMITTER SETTINGS
Adjusting the Transmitter Gain Level
The U1, U2, UC1 and UC2 transmitter audio gain level has been factory preset to provide satisfactory output in most applications, and it will
probably not need to be adjusted for most microphone applications. However, for loud talkers, the preset level may be too high, as indicated by
a constant glow of the red audio LED on the receiver. Soft spoken talkers may find that the factory setting is too low, as indicated by the failure of
the green audio level LED on the receiver to glow at all.
To adjust audio gain, open the battery compartment and locate the transmitter audio gain control. Use the supplied screwdriver to make adjust-
ments. See Figure 28.
For high sound pressure level applications, such as loud speaking, decrease audio gain level by rotating the gain control counterclockwise (while
the microphone is in use) until the red audio level LED on the receiver flickers only during the loudest sounds.
For low sound pressure level applications, such as soft speaking, increase audio gain level by rotating the gain control clockwise until the red
audio level LED on the receiver flickers only during the loudest sounds.
INCREASE GAIN
DECREASE GAIN
INCREASE GAIN
DECREASE GAIN
INCREASE
GAIN
DECREASE
GAIN
Б Б Б
INCREASE
GAIN
DECREASE
GAIN
ADJUSTING THE TRANSMITTER GAIN LEVEL
FIGURE 28
UC1 Attenuator Switch
The UC1 Transmitter features an attenuator switch inside the battery cover. For most situations, the 0 dB setting is preferable. The –20 dB setting
was designed for use with high output musical instruments
ATTENUATOR
SWITCH
0
–20
THE UC1 TRANSMITTER ATTENUATION SWITCH
FIGURE 29
U1 Attenuator Switch
The U1 body-pack transmitter features an attenuator switch which may be adjusted through an access hole located beneath the transmitter’s
belt clip. It is factory preset at –6 dB (center), which is the proper setting for most microphone applications, with the exception of low-output micro-
phones such as a headset. For those applications, the attenuator switch should be set at 0dB (fully counterclockwise). The –20 dB (clockwise)
position is designed for high output musical instruments.
To remove the beltclip and gain access to the attenuator, carefully remove the wire bracket, one side at a time, from the side of the transmitter.
To reinsert the belt clip, orient the clip so that the SHURE logo is on the outside toward the top (antenna side) of the transmitter. Carefully reinsert
the clip’s wire bracket, one side at a time, into the body of the transmitter.
Attenuator
access
Clip
sockets
Decrease
input level
Increase
input level
FIGURE 30