MB-750D-H and MB-750D-H/40 Installation Manual
Section 1
Introduction
The General Instrument STARLINE
®
Mini-Bridgers, models MB-750D-H and MB-750D-H/40
are versatile amplifiers used in modern television distribution systems for amplification of
standard National Television Sytem Committee (NTSC) television carriers as well as
high-definition digital channels. The MB-750D-H and MB-750D-H/40 amplify conventional
signals carried in the bandpass between 50 MHz and 550 MHz as well as high-definition digital
television signals carried in the bandpass between 550 MHz and 750 MHz. These digital
carriers have their relative amplitude set at the headend and normally operate 10 dB below
standard NTSC television channels.
Using This Manual
This manual provides instructions for the following tasks necessary to install, configure, and
operate the MB-750D-H and MB-750D-H/40 mini-bridgers:
Section 1
Provides a brief review of the function of the product in a distribution system. Identifies the
information contained in this manual, lists related documentation, and gives the helpline
telephone number.
Section 2
Provides a detailed description of the various components used in the amplifier. It also
provides instructions on proper installation of all options and subassemblies.
Section 3
Describes methods of bench alignment, testing, and configuration of the unit prior to
installing it in the system.
Section 4
Describes the installation and field alignment procedures required to place the unit into
service.
Appendix A
Lists the applicable specifications for the amplifier and options.
This installation manual assumes that all channels are standard NTSC analog channels. Refer
to catalog specifications or Appendix A, Specifications, in this document for further details
pertaining to signal levels of digital channels above 550 MHz.
The asterisk (*) indicates that there are several versions or model numbers, and the information
applies to all models. When the information applies to a specific model, the full model number is
given.
Related Documentation
This installation manual is complete and you should not require any additional documentation
to install, test or operate the MB-750D-H and MB-750D-H/40 mini-bridgers.
