User`s manual

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 PULSAR

without upconverter. The only exception is in case of a PULSAR 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

REMARK