Barco PULSAR BG, Руководство пользователя

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P
ULSAR
BG Vision Carrier Reference Input
Page 1
1 DESCRIPTION
If this option is installed, the output frequency is referred to an external connected Vision Carrier
Reference which will provide higher frequency stability. Also the sound carrier IF frequency is related
to this external reference signal.
An offset on this reference cariier will not only change the IF vision frequency
but also the sound / vision frequency spacing.
This option is normally only used in an IF P
ULSAR
. This means a P
ULSAR
without upconverter. The only exception is in case of a P
ULSAR
that
will be used in combination with a OPL 200 Mark II.
The vision carrier reference input option can not be used in combination with
the option reference carrier input.
The input impedance is always high, and a loop through connection is provided by the included BNC
T-connector.
If the level of the selected external reference carrier becomes too low the internal reference will
automatically be selected.
2 SPECIFICATIONS
- Connector ............................................................................... BNC
- Input impedance ..................................................................... 50 Ohm
- Input level............................................................................... + 40 dBmV ± 6 dB
3 INSTALLATION
Please read this chapter carefully before installing the option.
The installation procedure is only necessary when ordering this option sepa-
rately. When ordering a P
ULSAR
with Vision Carrier Reference Input, the
Installation has already been carried out during production.
For location of the boards, connectors and jumpers use the internal layout figure.
Before changing anything in the P
ULSAR
, remove the power cord to switch off
the power supply.
OPTION: VISION CARRIER REFERENCE INPUT
ORDER NUMBER: C9825576
WARNING
WARNING
REMARK