8
Monitor
Codes
When
the
MSAT
‐
G2
is
idle
in
PTT
mode,
it
can
be
programmed
to
selectively
scan
the
unit’s
programmed
talkgoups.
If
the
unit
is
actively
engaged
on
a
talkgroup,
scanning
is
disengaged
and
will
not
interrupt
that
talkgroup.
The
radio
must
be
at
“rest”
for
scanning
to
occur.
A
scanning
code
(LightSquared
calls
it
a
“monitor
code”)
will
pull
the
radio
off
the
talkgroup
to
which
it
is
tuned
for
as
long
as
the
scanned
talkgroup
remains
up
and
on
the
air.
Once
the
talkgroup
drops
off,
the
radio
reverts
to
the
talkgroup
on
which
it
was
sitting
(tuned),
and
scanning
resumes.
These
scanning
codes
cannot
be
user
programmed.
They
must
be
downloaded
to
the
radio
from
the
satellite
network.
All
talkgoups
are
downloaded
with
a
monitor
code;
this
code
determines
whether
a
talkgoup’s
radio
traffic
will
be
picked
up
by
the
MSAT
‐
G2’s
scan
function.
•
Monitor
Code
“0”
(LOW):
LightSquared
downloads
all
talkgroups
with
Monitor
Code
“0”
unless
otherwise
requested.
Any
talkgroup
with
Monitor
Code
”0”
assigned
to
it
will
only
hear
that
talkgroup
when
the
radio
is
tuned
to
that
talkgroup.
•
Monitor
Code
“1”
(MEDIUM)
and
Monitor
Code
“3”
(HIGH):
Both
of
these
Monitor
Code
levels
will
prompt
the
radio
to
constantly
scan
while
at
rest
for
any
talkgroups
with
these
Monitor
Codes
assigned
to
them.
Whichever
scanned
talkgroup
comes
up
on
the
air
first
will
engage
the
radio,
disable
any
further
scanning,
and
keep
the
radio
engaged
on
that
talkgroup
until
the
talkgroup
drops
off
the
network,
at
which
time
scanning
will
continue.
The
difference
between
Monitor
Codes
“1”
and
“3”
is
that
scanning
of
any
talkgroup
with
Monitor
Code
“1”
can
be
disabled
at
the
handset;
scanning
for
any
talkgroup
with
Monitor
Code
“3”
cannot
be
disabled.