Motorola MSF 5000 Instruction Manual page 210

Chapter4 Alignment
MSF
5000
Instruction Manual
Alignment Procedures
Squelch Adjustment
The following
procedure adjusts the repeater and receiver squelch levels.
If
the
station is configured for Spectra-TAC/DIGITAC Option (269) or to generate status
tone, proceed
directly
to the
High/Low
End Adjustment.
The
repeater squelch
level is typically
set for an
RF
level corresponding to
15
dB
SINAD.
The receiver squelch level is typically set for an
RF
level corresponding
to
12
dB
SINAD
(15
dB
SINAD
for trunked stations).
The
RF
level is measured
at the
SPEAKER AUDIO
on the front
panel
connector. Both squelch levels can be set to
the
levels corresponding
to system requirements.
For
trunked stations,
the repeater squelch potentiometer
(EEPOT
2)
is
set to 00.
NOME
If
the station is configured to generate status
tone and
is not used for voting purposes, proceed
to Status
Tone Adjustment.
If
the station is used for
voting
purposes, proceed to
High/Low
End Adjustment.
1.
Set the
PL Dis/Xmit
switch
to
PL Dis.
NOE
EEPOT
2
and
EEPOT
3
are set at the factory to the
maximum level
(99).
This fully
closes the squelch.
2.
Set
EEPOT
2
and
EEPOT
3 to the
minimum level
(00) to
fully
open the
squelch.
3.
Inject an on channel
RF
signal, without modulation at
the desired repeater
squelch threshold level, into the receiver antenna connector on the Junction
Box.
NOME
if
this is
a trunked station, proceed to step
5.
4.
Adjust
the Repeater
Squelch
Level
(EEPOT
2) to the desired
level.
5.
Adjust
the
Receive Squelch
Level (EEPOT
3) to the desired level.
6.
Set the
PL Dis/Xmit
switch
to the center
(normal) position.
4-44
68P81092E04 3/19/94
NOME