Specifications

ALTAR
ma
RECORDER
CHURCH SETUP
FIGURE
6
r*i PLAYER $GK-~
COURTROOM SETUP
FIGURE
7
minals of the linked mixers are connected. One mixer feeds a
PA system, and another mixer feeds a tape recorder and
equipment for a television broadcast.
Note that the Off-Attenuation can be set differently for the
PA mixer than for the
TV mixer. The Ti/ feed and recorder
may sound more natural if the Off-Attenuation is set at
-8 if
the room noise is sufficiently low. On the other hand, for
highest gain before feedback in the PA amplifier, the Off-
Attenuation should be set at
-1 5 or, in some cases, at minus
infinity. The Master Gain control is set differently on each
mixer to obtain proper levels feeding each system. The aux
source feeds both mixers via a Y-adapter cable but the Aux
control on each mixer may also need to be set differently.
ol MUTING SWITCH
0
CHAIRPERSON*^
CHANNEL
LEGISLATURE SETUP
FIGURE
8
LOGIC FUNCTIONS
Cough Button
The user can turn off his or her microphone [to the selected
Off-Attenuation level] during coughing or private conversa-
tions. To establish this function, wire an SPST pushbutton
switch between the Mute In and Logic Ground terminals on
each channel requiring a cough button. See Figure
9.
0 GATE OUT
LOGIC GROUND
MUTE IN
COUGH BUTTONS
FIGURE
9
Chairperson-Controlled Muting
By activating a switch, the chairperson can silence all the
other microphones and be heard without interruption. To
establish this function, connect together all the Mute In ter-
minals of all the mixers, but make no connection to the logic
terminals of the chairperson's microphone channel. Wire an
SPST pushbutton or toggle switch between
the Mute In and
Logic Ground terminals of any one channel except the
chairperson's channel. See Figure
10.
The Chairperson-Controlled Muting feature is also illustrated
[see Figure
81 as part of a large system for a legislature.
Note that the Logic Ground terminals of both mixers are
connected, and that the chairperson's logic channels are un-
connected.