Shure UP4 manual Changing the Transmitter Settings, Adjusting the Transmitter Gain Level

ENGLISH ENGLISH

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.

DECREASE GAIN DECREASE GAIN

INCREASE GAIN

INCREASE GAIN

DECREASE

GAIN

DECREASE

INCREASE

GAIN

INCREASE

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

0

–20

ATTENUATOR

SWITCH

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

Increase	Decrease
input level	input level	Clip
		sockets
		FIGURE 30

– 14 –