Motorola MSF 5000 Instruction Manual page 182

Chapter
4
Alignment
MSF
5000
Instruction Manual
Alignment Procedures
4-16
Set and hold
the
Select/Set switch
to Set.
Be sure to
hold this switch during
step 4 and step
8.
3.
Set the
PL Dis/Xmit
switch
to
PL Dis.
4.
Set the
Acc Dis/Reset switch
to
Acc Dis.
The Status display indicates "trP".
5.
Release the Select/Set switch.
Set the
PL Dis/Xmit
and Acc Dis/Reset switches
to the center
(normal)
position.
7.
The first character of
the
Status display toggles between
"F'
(forward
power) and "r" (reflected power),
as
shown in Figure
4-10.
Status
=
FORWARD
= REFLECTED
RELATIVE POWER READING
REPRESENTED
IN
HEXIDECIMAL
[Tf]
through
MSFI088
022894JNM
Figure 4-10
Forward/Reflected Power Status Display Definitions
Forward Power Level Adjustment
8.
Use the
tuning
tool to set the
power output
to the
desired forward power
level trip point by adjusting Po Power Set potentiometer (R426).
This
is
typically
set to 35%
of the rated station power level. Refer
to Table 4-4
through Table
4-6.
The Po Power Set potentiometer
is part of the Uniboard and
is accessed
through
the
opening in
the
RF
Tray front panel,
refer to
Figure
4-11.
Turn
the
Po
Power Set potentiometer
CW
to
increase
power
out; turn
it
CCW
to
decrease
power
out.
With
the transmitter
keyed,
set the
Select/Set switch
to
Select when
the first
character of the Status display shows
"F"'.
The second and third digits indicate
the
forward power level trip point. This
value
is represented
in hexadecimal.
68P81092E04 3/19/94
Chapter
4
Alignment
MSF
5000
Instruction Manual
Alignment Procedures
4-16
Set and hold
the
Select/Set switch
to Set.
Be sure to
hold this switch during
step 4 and step
8.
3.
Set the
PL Dis/Xmit
switch
to
PL Dis.
4.
Set the
Acc Dis/Reset switch
to
Acc Dis.
The Status display indicates "trP".
5.
Release the Select/Set switch.
Set the
PL Dis/Xmit
and Acc Dis/Reset switches
to the center
(normal)
position.
7.
The first character of
the
Status display toggles between
"F'
(forward
power) and "r" (reflected power),
as
shown in Figure
4-10.
Status
=
FORWARD
= REFLECTED
RELATIVE POWER READING
REPRESENTED
IN
HEXIDECIMAL
[Tf]
through
MSFI088
022894JNM
Figure 4-10
Forward/Reflected Power Status Display Definitions
Forward Power Level Adjustment
8.
Use the
tuning
tool to set the
power output
to the
desired forward power
level trip point by adjusting Po Power Set potentiometer (R426).
This
is
typically
set to 35%
of the rated station power level. Refer
to Table 4-4
through Table
4-6.
The Po Power Set potentiometer
is part of the Uniboard and
is accessed
through
the
opening in
the
RF
Tray front panel,
refer to
Figure
4-11.
Turn
the
Po
Power Set potentiometer
CW
to
increase
power
out; turn
it
CCW
to
decrease
power
out.
With
the transmitter
keyed,
set the
Select/Set switch
to
Select when
the first
character of the Status display shows
"F"'.
The second and third digits indicate
the
forward power level trip point. This
value
is represented
in hexadecimal.
68P81092E04 3/19/94