KEYPAD
DUET
VERSION 4.0
MPEG 2 DIGITAL INSERTER
3/22/00
V4.0-8
ADTEC, Inc.
USA
End By
-
Return from break criteria.
Options: Net/Avail/Spot, Net/Avail, Net/Spot, Spot/Avail, Network, Avail, Spot
NetAudio
-
Commercial and Network Audio levels.
Options: -16dB to +14 dB in 2 dB increments
ComAudio
-
Commercial and Network Audio levels.
Options: -16dB to +14 dB in 2 dB increments
Source
The DUET’s built in 4 by 1 A/V router can be manually changed with the Source menu.
NET
-
Network vi deo and audio routed
SOL
-
Soloist MPEG 2 video and audio routed
AUX
-
Auxiliary video and audio routed
OFF
-
No video and audio routed, off air.
Audio
The DUET provides attenuation or gain capabilities for the Network, Soloist (MPEG 2 insertion material) and
Auxiliary sources. Settings: -16dB to +14 dB in 2 dB increments. This setting is momentary and will revert
to the current NetSet once a break starts.
For Balanced 600 Ohm systems
A) The Network setting is factory defaulted to –6dB. The – 6dB setting provides active termination
equal to 600-Ohms. This provides a balanced input during power on for the receiver. The internal
gain circuit provides a multiplier of 2. This limits the maximum input voltage to 1 V peak to peak. In
the event of a power loss to the DUET the active –6 dB termination is disabled and the receiver will
see the 600-Ohm load on the modulator. This eliminates the possibility of dual termination.
B) The use of a 600-Ohm resistor on the audio input provides passive termination and will require that
the Network audio be set to +0 dB in the network setting. In this scenario, when power is lost, the
network audio will become doubly terminated (once at the Duet input and again at the modulator).