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MSF
5000
Instruction Manual
Chapter4
Alignment
Alignment Procedures
4.
Adjust
the
VOLTAGE SET
potentiometer (R662)
to set the
battery charge
voltage
at the
battery connector on
the
Junction
Box.
For optimum performance,
set R662 to the
manufacturer's recommended
battery charging voltage listed in Table
4-3.
Table
4-3
Recommended Battery Charging Voltages
Battery Type
Voltage
Lead
Acid
13.25
Vde
(26.5
Ve)
NI-CAD™
14.25
Vde
(28.5
Vde)
GEL-CELL™
13.5
Vde
(27
Vdc)
No
Batteries
14.25
Vdc
(28.5
Vdc)
Note:
Voltages represented in parenthesis
()
are
for
VHF
stations
using
the 24
Vdc
output post
All
voltages represented
are at
room temperature conditions.
NOTE
Only
connect
fully
charged batteries
to the station.
Allow
discharged batteries
to
charge for
at least three
hours before connecting them
to the
station.
Keying
the
station
without fully
charged batteries reduces
station performance.
NOTE
Motorola recommends periodically setting the
FL
/
EQ
switch
to
EQ
T
(ie.,
every
3
-
4
months or after
heavy
usage).
Leave this switch in
the
EQ
T (equalize)
position until
the batteries' cells are
fully
equalized.
5.
Connect
the
batteries to the
Junction
Box. Observe
polarity of
the connector.
VCO Adjustments
The following
procedure adjusts the Transmit and Receive Voltage
Controlled
Oscillators
(VCOs).
The
VCOs
are
adjusted through the use of the
Rx Lock
and
Tx
Lock LEDs,
the
VCO
locking
cams, and
a
metering panel.
This
procedure does
not
apply
to
VHF
stations since they do not require fine
tuning
for proper
operation.
68P81092E04
3/19/94
4-5
MSF
5000
Instruction Manual
Chapter4
Alignment
Alignment Procedures
4.
Adjust
the
VOLTAGE SET
potentiometer (R662)
to set the
battery charge
voltage
at the
battery connector on
the
Junction
Box.
For optimum performance,
set R662 to the
manufacturer's recommended
battery charging voltage listed in Table
4-3.
Table
4-3
Recommended Battery Charging Voltages
Battery Type
Voltage
Lead
Acid
13.25
Vde
(26.5
Ve)
NI-CAD™
14.25
Vde
(28.5
Vde)
GEL-CELL™
13.5
Vde
(27
Vdc)
No
Batteries
14.25
Vdc
(28.5
Vdc)
Note:
Voltages represented in parenthesis
()
are
for
VHF
stations
using
the 24
Vdc
output post
All
voltages represented
are at
room temperature conditions.
NOTE
Only
connect
fully
charged batteries
to the station.
Allow
discharged batteries
to
charge for
at least three
hours before connecting them
to the
station.
Keying
the
station
without fully
charged batteries reduces
station performance.
NOTE
Motorola recommends periodically setting the
FL
/
EQ
switch
to
EQ
T
(ie.,
every
3
-
4
months or after
heavy
usage).
Leave this switch in
the
EQ
T (equalize)
position until
the batteries' cells are
fully
equalized.
5.
Connect
the
batteries to the
Junction
Box. Observe
polarity of
the connector.
VCO Adjustments
The following
procedure adjusts the Transmit and Receive Voltage
Controlled
Oscillators
(VCOs).
The
VCOs
are
adjusted through the use of the
Rx Lock
and
Tx
Lock LEDs,
the
VCO
locking
cams, and
a
metering panel.
This
procedure does
not
apply
to
VHF
stations since they do not require fine
tuning
for proper
operation.
68P81092E04
3/19/94
4-5
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