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Installation - GE LBI-31154 Maintenance Manual

Vehicular repeater
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INSTALLATION
The
Vehicular
Repeater
radio
is
installed
in the same-manner
as the MASTR
Executive
II
radi-o.
A.typical
installa-
tion
is
shown in Figure
3.
Refer
to the
MASTR Executive
II
Installation
Instruc-
tions
for
details.
_
POWER CONTROL AND INTERFACE CABLE
The Power/Control
cable
supplied
for
the mobile
radio
unit
should
be installed
as' indicated
in the
Installation
Instruc-
tions
with
the
following
exception:
The interface
cable
plug,
P901,
is
connected
to
the
Mobile
Radio
and Jl
to
the
Power
Control
Cable.
The remaining
two connectors
P2 and P802 are
connected
to
the
Vehicular
Repeater
and Vehicular
Charger
respectively.
ADJUSTMENTS
INITIAL
ADJUSTMENTS
Preliminary
adjustments
on
the
mobile
radio
and
the
vehicular
repeater
radio
should
be completed
as indicated
in
the
applicable
MAINTENANCE MANUALS.
The
following
adjustment
procedures
should
be
LB131154
performed
with
the
complete
Vehicular.
Repeater
System interconnected
and power
applied.
-.
The options
on channels
Fl
through
F8
are
chosen
-to
meet
the
customer's
need.
If
optional
mobile
detector
is
present
for
non-simplex
channels,
certain
diodes
corresponding
to
frequency
posi-
tions
where
mobile
detector
is
used
are
removed
from matrix
CR1 through
CR8.
If
optional
mobile
CG decoder
is
present,
diodes
are
removed
from
matrix
CR11
through
CR18 corresponding
to
frequency
position
requiring
the CG decoder.
Refer
to Modification
Instructions
in the Vehi-
cular
Repeater
Systems
Manual.
r
CAUTION
To prevent
possible
damage to
test
equipment
when
connected
directly
to the
antenna
jacks
of
either
the
mobile
radio
or
the
vehicular
re-
peater
radio,
directional
couplers
should
be used.
Connect
test
equipment
to
the
Vehicular
Repeater
System
as
shown
in
Figure
4 and
tune
modulation
deviation
meter
to repeater
transmit
frequency.
I
i
I
FREQUENCY
COUNTER
RC * 38 85A
Figure
4 - Test
Setup
7

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