Axel Oxygen 3 Operations Instructions download pdf (Page 48)

Oxygen 7Oxygen 7 - TELCO MODULE

Pag. 48

9.13 DUCK SWITCH

The Duck is an ON/OFF switch which tells each VCA fader whether or not

they partecipate in the external Duck control.

Please ref to Chapter 6.

The DUCK switcher works in conjunction with the module status (On or

Off)

There is a red LED next to the switch which will illuminate at two levels of

brightness.

The LED will illuminate at half brightness if the switch is pressed but the

module is Off.

You may regard this as the DUCK routing circuit being armed but not

active.

To make it active the On status must be engaged. The LED will illuminate

at full brightness to indicate that the circuit is now active.

When the switch is depressed, LED is off and the circuit is never active,

regardless of the module status (On/Off).

LED OFF

switch depressed / the status of the module

doesn’t affect routing circuit

LED ON

switch pressed / DUCK circuit is active as the

module is On

LED HALF

BRIGH.

switch pressed / DUCK circuit is non active as the

module is Off

This three mode operating has been introduced in order to prevent buss

from additional noise when switch is pressed and module is off.

9.14 PRIVATE button

Pre-fade listening PFL button (operated only in latched mode) allows a

caller to be heard without being in the broadcast (i.e. with the fader

closed) and to listen to the “talkback” mic(s).

When the PFL button is activated:

•

the channel (Receive) signal will be connected to the PFL

output and to the CUE single-meter circuitry (see also

MONITOR Chapter).

•

the TalkBack To Studio bus audio is automatically switched to

the caller for “off-air” (i.e. ‘Private’) communications with the

engineer (or with the announcer situated in the Croom).

F.i., the engineer can talk off-air with a caller (whilst the Main

programme is being output) via its own microphone connected

to Mono module (and routed as TB to Studio – see § 7.7).

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Axel Oxygen 3 Operations Instructions Page 48

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