RAZAIR
‐
A1
‐
METRO
‐
III
‐
AFM
‐
001
2
‐
8
EHSI
–
ELECTRONIC
HORIZONTAL
SITUATION
INDICATOR
The
SA
‐
227
‐
BC
comes
from
the
factory
with
an
EHSI
installed.
The
EHSI
is
an
Electronic
Flight
Instrument
System
(EFIS),
it
combines
the
function
of
a
Horizontal
Situation
Indicator
(HSI),
RMI,
GPS
Moving
Map
and
TCAS
screen
in
a
single
device.
Both
the
pilot
and
the
copilot
have
their
own
individual
EHSI.
They
can
be
configured
independently
but
all
navigation
data
is
shared.
Fig.
81
PIlot's
EHSI
Display
and
Control
panel
Fig.
82
Copilot's
EHSI
Display
and
Control
panel.
Fig.
83
EHSI
Display
Fig.
84
EHSI
Control
panel.
The
EHSI
will
display
data
from
the
following
instruments:
ATTENTION
It
is
not
possible
to
deselect
the
audio
output
for
the
VHF1
(COM1)
radio.
Clicking
on
VHF2
will
enable
audio
output
for
BOTH
radios.
It
is
possible
that
you
will
hear
another
transmission
on
top
of
the
one
meant
for
you.