19
Event
‐
>
Timer
‐
>
1
‐
Shot
Comparator
This
Aux
OCS
setting
combines
the
Trigger
Event
with
an
ensuing
timer,
and
after
expiration
thereof,
it
evaluates
the
1
‐
Shot
Comparator
operation.
The
timer
starts
immediately
upon
activation
of
the
Trigger
Event.
When
the
timer
interval
expires,
the
Comparator
is
evaluated
for
validity
just
one
time.
If
the
comparator
result
is
valid,
then
the
Aux
Output
is
activated.
Event
‐
>
1
‐
Shot
Comparator
‐
>
Timer
This
Aux
OCS
setting
combines
the
Trigger
Event
with
an
ensuing
1
‐
Shot
Comparator,
and
after
validation
thereof,
a
timer
operation
begins.
When
the
Trigger
Event
becomes
active,
the
Comparator
is
evaluated
only
one
time
for
validity.
The
timer
starts
immediately
upon
validity
of
the
Comparator.
When
the
timer
interval
expires,
the
Aux
Output
is
activated.
Auxiliary
Trigger
Event
With
the
exception
of
the
LED
Sync
operation,
the
trigger
event
is
what
initiates
any
Aux
Output
Control
Sequence.
The
trigger
event
represents
the
specific
phase
of
the
RRC3
Flight
that
you
want
to
apply
the
control
sequence
to.
When
that
phase
of
the
flight
is
reached,
the
Trigger
Event
is
satisfied
and
the
ensuing
control
sequence
can
be
evaluated.
The
Trigger
Events
are
as
follows:
LCD
Setting
Value
Setting
Description
0
Disabled
‐
No
trigger
event
is
defined
1
Launch
‐
Altitude
>
Arming
Altitude
and
unit
has
not
reached
apogee
2
Apogee
‐
Apogee
was
detected
and
Altitude
>
Main
Altitude
3
Main
‐
Main
was
deployed
and
unit
has
not
landed
4
Landing
‐
Unit
has
landed
Auxiliary
Comparator
Operation
Whenever
the
Comparator
is
required
by
the
active
Aux
OCS,
an
appropriate
Comparator
Operation
setting
is
required
as
well.
The
Comparator
Operation
defines
the
specific
comparison
test
made
by
the
altimeter.
By
creating
comparisons
against
the
current
Velocity
or
Altitude
,
you
can
create
a
failsafe
permissive
or
minimum/maximum
limit
test
as
part
of
your
Aux
OCS.
Altitude
is
always
evaluated
as
the
current
“AGL
Altitude”,
and
is
always
expressed
in
your
Aux
OCS
as
a
positive
value.
Velocity
is
the
current
Velocity
as
calculated
by
the
RRC3.
During
the
Ascent
phase
of
your
flight
will
always
be
a
positive
value
,
but
during
the
Descent
phase
,
Velocity
will
always
be
negative
value
.
IMPORTANT:
The
Ascent
Phase
of
a
flight
is
after
the
Launch
Detect
Event
and
prior
to
the
Apogee
Event.
The
Descent
Phase
of
a
flight
is
after
the
Apogee
Event
and
prior
to
the
Landing
Event.
The
Comparator
Operations
are
defined
as
follows:
LCD
Setting
Value
Setting
Description
0
Disabled
‐
No
comparator
operation
is
defined
1
Alt.
<=
ACV
x
100
‐
Compare
AGL
Altitude
for
<=
ACV
x
100
2
Alt.
>=
ACV
x
100
‐
Compare
AGL
Altitude
for
>=
ACV
x
100
3
Vel.
<=
ACV
x
100
‐
Compare
Velocity
for
<=
ACV
x
100
4
Vel.
>=
ACV
x
100
‐
Compare
Velocity
for
>=
ACV
x
100
