Motorola MSF 5000 Instruction Manual page 285

(MA)
MOTOROLA Appendix
H
Simulcast Alignment
Receiver Adjustment
1.
Adjust EEPOTs
6, 8, 9,
A,
and
C
to 00.
NOTE
Step
2
through step
8
require the audio generator
to
remain at
a
constant output level of
100
mV
from 400
to 3000
Hz.
2.
Use an audio generator and inject
a
j1
kHz
tone at 100
mV, measured
with
and
AC
voltmeter, into
the
MIC AUDIO
(J812-4)
input
on the front panel
control jack;
or
via TP8
on the
SSCB.
3.
Set the front panel Intercom switch
to
On and activate the
LOC PTT
MUxXbus bit.
4.
Adjust
EEPOT C
to -10
dBm at Line
2
+/-
on the
Junction
Box.
This
is
a
600
©
balanced output.
5.
Set the generator frequency to
3
kHz
and adjust
EEPOT
9 to -10
dBm.
6.
Repeat
step
2
through
step
5
until
the difference is
within +/-
1
dB.
The
1
kHz
level reference must remain at -10 dBm.
7.
Set the generator frequency
to 400
Hz.
8.
Adjust
EEPOT
A
to -10
dBm.
Do
not readjust
EEPOT
9
or
EEPOT
C.
9.
Deactivate
the
MUXbus
bits.
10.
Set the
Intercom switch
to
Off.
11.
Disconnect
the
audio generator from
the
MIC AUDIO
input.
12.
Set the
PL Dis/Xmit
switch
to
PL Dis.
13.
Inject an on-channel
1
mV RF signal modulated with
a
1
kHz
tone at 100%
full
system deviation into the receiver port.
68P81092E28-0 3/19/94-UP
H-1
(MA)
MOTOROLA Appendix
H
Simulcast Alignment
Receiver Adjustment
1.
Adjust EEPOTs
6, 8, 9,
A,
and
C
to 00.
NOTE
Step
2
through step
8
require the audio generator
to
remain at
a
constant output level of
100
mV
from 400
to 3000
Hz.
2.
Use an audio generator and inject
a
j1
kHz
tone at 100
mV, measured
with
and
AC
voltmeter, into
the
MIC AUDIO
(J812-4)
input
on the front panel
control jack;
or
via TP8
on the
SSCB.
3.
Set the front panel Intercom switch
to
On and activate the
LOC PTT
MUxXbus bit.
4.
Adjust
EEPOT C
to -10
dBm at Line
2
+/-
on the
Junction
Box.
This
is
a
600
©
balanced output.
5.
Set the generator frequency to
3
kHz
and adjust
EEPOT
9 to -10
dBm.
6.
Repeat
step
2
through
step
5
until
the difference is
within +/-
1
dB.
The
1
kHz
level reference must remain at -10 dBm.
7.
Set the generator frequency
to 400
Hz.
8.
Adjust
EEPOT
A
to -10
dBm.
Do
not readjust
EEPOT
9
or
EEPOT
C.
9.
Deactivate
the
MUXbus
bits.
10.
Set the
Intercom switch
to
Off.
11.
Disconnect
the
audio generator from
the
MIC AUDIO
input.
12.
Set the
PL Dis/Xmit
switch
to
PL Dis.
13.
Inject an on-channel
1
mV RF signal modulated with
a
1
kHz
tone at 100%
full
system deviation into the receiver port.
68P81092E28-0 3/19/94-UP
H-1