Motorola MSF 5000 Instruction Manual page 177

MSF
5000
Instruction Manual
Chapter
4
Alignment
Alignment Procedures
NOTE
When tuning for
Cca
minimum
or
maximum reading on
the meter,
adjust the tuning screws an additional
half-turn. This
ensures that the true
minimum
or
maximum level.
4.
On
the front
of
the
RF
Tray, adjust
all the Preselector tuning screws
CCW
as
indicated below. Refer
to
Figure
4-7.
On
800
MHz
stations,
adjust
the
tuning screws until they
extend
approximately
1/8" from the front panel.
On
UHF
and 900
MHz
Analog Plus
stations,
adjust
the
tuning screws until
they extend approximately
1/4"
from the front panel.
On
VHF
stations
using
VHF
Range
1
Option
(C367), adjust
the
tuning
screws
until they
extend approximately 3/4" from the tension nut.
On
VHF
stations
using
VHF
Range 2, adjust the
tuning
screws
until they
extend approximately 1/8" from the tension nut.
NOTE
On
VHF
stations
at frequencies near
158
MHz
(Range 1)
or near 174
MHz
(Range
2), the meter
indication may not decrease after
tuning
for
a
maximum level.
If
this happens, stop adjusting the
tuning
screw.
RX
METERING
JACK
TX
METERING
JACK
©
CAUTION
STATIC DISCHARGE TO CABINET OR
SW TCHES
MAY
CAUSE
stSTA
TON
Fre
hah
RESET
'TG DEFAULT CONDITION.
MOTOROLA
MSF
5000
OPEN
O
OPEN
©
Po
Power Set
CONTROL
RF TRAY
FRONT PANEL
NOTE:
L
-
L6,
J1
-
J6
and
Fo Freq Adj are
not found on
VHF
models.
Access
requires the removal of the front panel.
MSFIOI 3
021894JNM
Figure
4-7
Preselector Filter Tuning Screws
5.
Connect
the Preselector probe from the output of
a
signal generator
to J1 of
the Preselector located on the front panel of the
RF
Tray.
68P81092E04
3/19/94
4-11
MSF
5000
Instruction Manual
Chapter
4
Alignment
Alignment Procedures
NOTE
When tuning for
Cca
minimum
or
maximum reading on
the meter,
adjust the tuning screws an additional
half-turn. This
ensures that the true
minimum
or
maximum level.
4.
On
the front
of
the
RF
Tray, adjust
all the Preselector tuning screws
CCW
as
indicated below. Refer
to
Figure
4-7.
On
800
MHz
stations,
adjust
the
tuning screws until they
extend
approximately
1/8" from the front panel.
On
UHF
and 900
MHz
Analog Plus
stations,
adjust
the
tuning screws until
they extend approximately
1/4"
from the front panel.
On
VHF
stations
using
VHF
Range
1
Option
(C367), adjust
the
tuning
screws
until they
extend approximately 3/4" from the tension nut.
On
VHF
stations
using
VHF
Range 2, adjust the
tuning
screws
until they
extend approximately 1/8" from the tension nut.
NOTE
On
VHF
stations
at frequencies near
158
MHz
(Range 1)
or near 174
MHz
(Range
2), the meter
indication may not decrease after
tuning
for
a
maximum level.
If
this happens, stop adjusting the
tuning
screw.
RX
METERING
JACK
TX
METERING
JACK
©
CAUTION
STATIC DISCHARGE TO CABINET OR
SW TCHES
MAY
CAUSE
stSTA
TON
Fre
hah
RESET
'TG DEFAULT CONDITION.
MOTOROLA
MSF
5000
OPEN
O
OPEN
©
Po
Power Set
CONTROL
RF TRAY
FRONT PANEL
NOTE:
L
-
L6,
J1
-
J6
and
Fo Freq Adj are
not found on
VHF
models.
Access
requires the removal of the front panel.
MSFIOI 3
021894JNM
Figure
4-7
Preselector Filter Tuning Screws
5.
Connect
the Preselector probe from the output of
a
signal generator
to J1 of
the Preselector located on the front panel of the
RF
Tray.
68P81092E04
3/19/94
4-11