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MSF
5000
Instruction Manual
Chapter
4
Alignment
Alignment Procedures
NOTE
Perform step
14
only if aligning UHF,
800
MHz,
and
900
MHz
Analog Plus
stations.
Otherwise, proceed
to
Fine Adjustment.
14.
For UHF,
800
MHz,
and 900
MHz
Analog Plus
stations,
move
the probe to
J5
and adjust
L6
on the Preselector
until Meter
2
indicates
Cca
minimum level.
Fine Adjustment
15.
Using
the
Select/Set switch,
set the
station to the
tuning
channel.
16.
Use
a
signal generator
to
inject
a
1
mV
on-channel signal into the receiver
antenna connector on the
Junction
Box.
17.
Alternately
adjust L10 and
L11 on the
Image
Filter until Meter
2
indicates
a
maximum level.
18.
Alternately
adjust L1 on
the
Preselector and L11 on the Image
Filter until
Meter
2
indicates
Cca
maximum level.
19.
Adjust
L6
on the Preselector
(L5
for
VHF
stations)
until Meter
2
indicates
a
maximum level.
NOTE
Perform step
20
only if aligning
a
VHF
station.
Otherwise, proceed
to
Adjusting
the
Transmit Filter
(Duplexer).
20.
On
VHF
stations
only, reinstall the
RF
Tray front
panel.
Adjusting
the Transmit Filter (Duplexer)
The following procedure
is
only performed
for LIHF
stations
equipped
with
the
Duplex Filter Option (C597, C675,
or
C677).
This
procedure aligns the prefilter and
postfilter of
the
Duplex
Filter.
The prefilter
and postfilter are
aligned
for the
tuning channel frequency
(channel 0/mode
0).
By adjusting
the
prefilter and postfilter
to the
tuning
channel,
the station is tuned for
all programmed frequencies.
The prefilter
and postfilter
tuning screws
are
easily
accessed
within
the
station
cabinet.
The tuning screws
are
adjusted until the proper reading is obtained on
the
metering panel.
68P81092E04
3/19/94
4-13
MSF
5000
Instruction Manual
Chapter
4
Alignment
Alignment Procedures
NOTE
Perform step
14
only if aligning UHF,
800
MHz,
and
900
MHz
Analog Plus
stations.
Otherwise, proceed
to
Fine Adjustment.
14.
For UHF,
800
MHz,
and 900
MHz
Analog Plus
stations,
move
the probe to
J5
and adjust
L6
on the Preselector
until Meter
2
indicates
Cca
minimum level.
Fine Adjustment
15.
Using
the
Select/Set switch,
set the
station to the
tuning
channel.
16.
Use
a
signal generator
to
inject
a
1
mV
on-channel signal into the receiver
antenna connector on the
Junction
Box.
17.
Alternately
adjust L10 and
L11 on the
Image
Filter until Meter
2
indicates
a
maximum level.
18.
Alternately
adjust L1 on
the
Preselector and L11 on the Image
Filter until
Meter
2
indicates
Cca
maximum level.
19.
Adjust
L6
on the Preselector
(L5
for
VHF
stations)
until Meter
2
indicates
a
maximum level.
NOTE
Perform step
20
only if aligning
a
VHF
station.
Otherwise, proceed
to
Adjusting
the
Transmit Filter
(Duplexer).
20.
On
VHF
stations
only, reinstall the
RF
Tray front
panel.
Adjusting
the Transmit Filter (Duplexer)
The following procedure
is
only performed
for LIHF
stations
equipped
with
the
Duplex Filter Option (C597, C675,
or
C677).
This
procedure aligns the prefilter and
postfilter of
the
Duplex
Filter.
The prefilter
and postfilter are
aligned
for the
tuning channel frequency
(channel 0/mode
0).
By adjusting
the
prefilter and postfilter
to the
tuning
channel,
the station is tuned for
all programmed frequencies.
The prefilter
and postfilter
tuning screws
are
easily
accessed
within
the
station
cabinet.
The tuning screws
are
adjusted until the proper reading is obtained on
the
metering panel.
68P81092E04
3/19/94
4-13
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