Williams Sound PPA R7 Guia do Utilizador descarregar pdf (Página 9)

AVOIDING HUM IN THE AUDIO (AS A RESULT OF A GROUND LOOP)

A hum created by a ground loop can often be eliminated by connecting a capacitor in series with the audio

line shield to the transmitter’s ground. This method also maintains good RF shielding. Determining the

effectiveness of this method for your installation usually requires some experimentation. See Figure 7.

CONNECTING THE T35 TO A RECORDING DEVICE

Use the Audio Line Out jack for monitoring, recording, or routing processed audio to another sound system.

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.01 uF Ceramic

Disc Capacitor

n Phase

3–Pin Connector

.01 uF Ceramic

isc Capacitor

reaking A Ground Loop when 

Connecting to a Unbalanced Line

reaking A Ground Loop when 

Connecting to a Balanced Line

FIG. 7: CONNECTING TO A BALANCE/UNBALANCED LINE

FIG. 8: AUDIO LINE OUTPUT

Audio Line Out Audio Line In

Recording Device

PPA T35

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Williams Sound PPA R7 Guia do Utilizador Página 9