Motorola MSF 5000 Instruction Manual page 213

MSF
5000
Instruction Manual
Chapter
4
Alignment
11.
12.
13.
14,
15.
Alignment Procedures
NOTE
Perform this procedure
only if
the station is
equipped
with
a
Spectra-TAC/DIGITAC
Encoder Option
(C269).
Otherwise, proceed
to the
Coded Transmit Deviation
Adjustment
procedure.
Set
EEPOT
2
and
EEPOT
33
to the
minimum level
(00) to
fully
open the
squelch.
8.
Set the
PL Dis/Xmit
switch
to
PL Dis.
Measure and record the rms noise voltage level
at the
Line
2
output.
9.
10.
Inject an on channel
0.1
pV RF
signal, without modulation into
the
receiver
antenna connector on the
Junction
Box.
Increase the
RF
level until
the
Line
2
output level decreases
20
dB from the
level recorded in step
10.
NOTE
The
20
dBQ level
correlates
to a 17
dB
SINAD
measurement.
Adjust
the
Receiver Squelch
Level
(EEPOT
3)
until
the
RI UN
SQ MUXbus
bit
(A5/D0)
is disabled.
Adjust
the
Repeater Squelch
Level
(EEPOT
2)
until
the
RPT USQ MUXbus
bit
(A3/D0)
is disabled.
Disconnect all
test
equipment and
set the
PL Dis/Xmit
switch to the center
(normal) position.
Coded Transmit Deviation Adjustment
The following procedure
is
only performed when
a
station is configured for the
Transparent Operation Option
(C514).
This procedure does not
apply
to
any
900
MHz
Analog Plus
stations,
due
to
its
incompatibility with
secure operation.
When performing
this procedure, the
EEPOT
mode
(EEPOT
6) is entered to
generate
a
1
kHz
tone.
The
station is then keyed
via
the
Xmit switch
and
the
deviation
is adjusted.
68P81092E04 3/19/94
4-47
MSF
5000
Instruction Manual
Chapter
4
Alignment
11.
12.
13.
14,
15.
Alignment Procedures
NOTE
Perform this procedure
only if
the station is
equipped
with
a
Spectra-TAC/DIGITAC
Encoder Option
(C269).
Otherwise, proceed
to the
Coded Transmit Deviation
Adjustment
procedure.
Set
EEPOT
2
and
EEPOT
33
to the
minimum level
(00) to
fully
open the
squelch.
8.
Set the
PL Dis/Xmit
switch
to
PL Dis.
Measure and record the rms noise voltage level
at the
Line
2
output.
9.
10.
Inject an on channel
0.1
pV RF
signal, without modulation into
the
receiver
antenna connector on the
Junction
Box.
Increase the
RF
level until
the
Line
2
output level decreases
20
dB from the
level recorded in step
10.
NOTE
The
20
dBQ level
correlates
to a 17
dB
SINAD
measurement.
Adjust
the
Receiver Squelch
Level
(EEPOT
3)
until
the
RI UN
SQ MUXbus
bit
(A5/D0)
is disabled.
Adjust
the
Repeater Squelch
Level
(EEPOT
2)
until
the
RPT USQ MUXbus
bit
(A3/D0)
is disabled.
Disconnect all
test
equipment and
set the
PL Dis/Xmit
switch to the center
(normal) position.
Coded Transmit Deviation Adjustment
The following procedure
is
only performed when
a
station is configured for the
Transparent Operation Option
(C514).
This procedure does not
apply
to
any
900
MHz
Analog Plus
stations,
due
to
its
incompatibility with
secure operation.
When performing
this procedure, the
EEPOT
mode
(EEPOT
6) is entered to
generate
a
1
kHz
tone.
The
station is then keyed
via
the
Xmit switch
and
the
deviation
is adjusted.
68P81092E04 3/19/94
4-47