1
I.
SCOPE AND PURPOSE
This manual contains all the information required to
align the Spectra 900MHz radio, to service and repair
the radio to the board or kit level, and to perform editing
of selected codeplug data (mode names, scan lists, etc.)
directly from the front panel.
The 900MHz band has adjacent channel
assignments of 12.5kHz, and the FCC specifies a
maximum transmitter deviation of ±2.5kHz and a
transmitter stability of 1.5 ppm for this band. For
continued excellent performance under these
requirements, the Spectra radio contains a HearClear
TM
audio processing circuit to improve signal quality in
fading environments, and an adaptive splatter control
feature to reduce adjacent channel splatter under strong
signal conditions. Both of these exclusive Spectra
features are described in detail in the following sections
of this manual.
An Installation Manual is shipped with each radio
along with an Operator Manual. Refer to these
publications for installation and operation procedures.
A Detailed Service Information Manual is available
from the Motorola Communications Parts Division and is
required for servicing the radio to the component level.
In addition, since all radio boards utilize 100% surface-
mount component technology; a hot-air gas bonder is
recommended for component-level servicing.
An IBM
TM
Personal Computer and Spectra Radio
Service Software are also required for serving the
Spectra radio. This software is available directly from
Motorola C & E National Parts Department. Software,
computer interfacing cables, and other service aids are
listed in the following sections, along with ordering
information.
The Spectra radio contains a new generation of
advanced integrated circuits, with all RF and signalling
parameters controlled by the radio’s microprocessor.
The service software is required to adjust codeplug
control parameters after servicing most boards and
critical components. This software also permits
programming of all customer features, viewing of all
trunking parameters, and contains some helpful service
aids for troubleshooting purposes.
II.
RADIO MODEL IDENTIFICATION
This manual covers several versions of current
production models and earlier versions of some of
those models. Accordingly, model charts were
prepared for the different models and also for the
different versions. Current production model charts are
in the front part of the manual and the earlier versions
are in an appendix at the back of the manual.
Although the model charts are very similar, there are
subtle, but very important, differences. Determine,
from the radio’s identification label, which model and
version is yours. Keep this information handy for future
reference. Determine the model and version of your
radio as follows:
Typical Spectra
Model Number – K 3 7 K G A 5 J B 7 F K
Model Version
Typical Spectra 9000
Model Number – D 3 7 K G A 5 J C 9 A K
Model Version
INTRODUCTION
Содержание Spectra
Страница 6: ...v PERFORMANCE SPECIFICATIONS FOR SPECTRA PRIVACY PLUS TRUNKED CONVENTIONAL 900 MHz RADIO ...
Страница 7: ...vi PERFORMANCE SPECIFICATIONS FOR SPECTRA SMARTNET TRUNKED CONVENTIONAL 900 MHz RADIO ...
Страница 8: ...vii PERFORMANCE SPECIFICATIONS FOR SPECTRA 9000 RADIOS 900 MHz 30 WATTS ...
Страница 25: ...1 GENERAL INFORMATION 1 ...
Страница 73: ...53 INSERT GPW 7221 B Figure 22 Front Panel Diagnostics Key Closure Displays ...
Страница 75: ...INSERT GXW 4278 O PICKUP FROM PW 4320 O 55 CONTROL STATION WIRING DIAGRAM ...
Страница 79: ...PUSHBUTTON SPECTRA 900 MHz RADIO MECHANICAL EXPLODED VIEW 59 INSERT GXW 6225 B ...
Страница 96: ...82 MECHANICAL EXPLODED VIEW PARTS LIST FOR SPECTRA 900 MHz RADIO ...