Field Service Procedure – Replacement PCU Kit, Coastal
Page
2
of
9
Document No
135553 Rev A
Copyright © Sea Tel, Inc 2012 - The information contained in this document is proprietary to Sea
Tel, Inc. This document may not be reproduced or distributed in any form without prior written
consent of Sea Tel, Inc.
If
any
of
these
steps
take
excessive
time
or
do
not
complete
properly,
further
diagnostics
will
need
to
be
undertaken.
If
the
antenna
model
isn’t
displayed
after
the
initialization
process,
this
will
need
to
be
preset
in
the
PCU
before
the
antenna
can
operate.
If
the
antenna
does
not
come
out
of
the
initialization
process
its
possible
it
cannot
see
the
last
preset
satellite
from
the
current
GPS
location,
if
this
is
the
case
enter
into
the
setup
menu
and
verify
if
the
settings
are
correct.
5.
Rate
Sensor
Outputs:
If
the
antenna
isn’t
stabilizing
correctly
it
could
be
due
to
a
faulty
rate
sensor.
A
typical
indication
of
this
is
that
the
antenna
will
operate
correctly
in
static
conditions
such
as
in
the
port,
but
will
not
remain
on
the
satellite
under
dynamic
conditions.
To
test
the
rate
sensors
remove
the
radome
top
and
unbolt
the
radome
base
from
its
mounting
position.
Now
physically
rotate
the
system
in
each
axis
to
verify
if
the
motor
drives
the
opposite
amount
of
movement
1.
To
test
azimuth:
Rotate
the
radome
base
around
the
system
in
each
direction,
simulating
the
vessels
heading
incrementing/decrementing.
The
antenna
should
remain
pointed
at
the
satellite
without
losing
the
signal
and
going
into
a
search.
2.
To
test
elevation:
Tilt
the
radome
base
from
front
to
back,
simulating
the
vessel
pitching
from
bow
to
aft.
The
antenna
should
remain
pointed
at
the
satellite
without
losing
the
signal
and
going
into
a
search.
3.
To
test
the
pol
drive
(if
applicable):
Tilt
the
radome
base
from
side
to
side,
simulating
the
vessel
rolling
from
starboard
to
port.
The
LNB
should
move
an
equal
amount
to
the
movement
exerted
on
the
system
and
should
remain
stable
without
losing
the
signal
and
going
into
a
search.
*Note:
The
Coastal
18
feed
assembly
(LNB)
will
rotate
left
when
tilted
right
and
right
when
tilted
left.
The
Coastal
24
and
30
antennas
have
a
phase
card
installed
in
the
feedhorn
which
reverses
the
polarity
of
the
linear
signal,
as
you
rotate
the
antenna
to
the
right,
the
feed
(LNB)
will
drive
to
the
right
and
as
you
rotate
the
antenna
to
the
left
the
feed
(LNB)
will
drive
to
the
left.
6.
Run
the
Built
‐
In
Test
(BIT):
Coastal
PCU
software
2.06
and
above
supports
a
built
in
test
function
used
to
isolate
problems
with
components
in
the
antenna
system.
To
run
the
BIT
test
power
off
the
antenna
by
pressing
the
power
button
on
the
control
panel,
now
press
and
hold
the
next
button,
and
then
press
the
power
button.
As
opposed
to
initializing
the
control
panel
will
now
display
“Built
In
Test
Next
to
Begin”.
Pressing
the
next
button
will
run
the
Built
‐
In
Test
automatically
until
completed,
if
no
faults
are
found
with
the
system
“BIT
Finished
No
Errors”
will
be
displayed.
Unless
an
error
is
discovered
the
test
will
pause
while
the
specific
error
is
highlighted,
this
should
be
recorded
for
further
diagnostics,
pressing
next
will
continue
to
run
the
test.
Any
errors
recorded
require
further
diagnostics
as
per
the
below
information.
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