Operation
Status
display
After
power-on,
the
main
screen
shows
the
current
state
of
the
transmitter,
i.e.
link
status,
transmission
power,
R/C-
and
head-tracking
input
signal
state.
●
Link
Status
-
State
of
the
wireless
link
[Connecting,
Running]
●
TX
Power
-
Output
transmission
power
[10mW,
25mW,
100mW,
500mW,
1W,
2W]
●
RC
Input
-
Radio
R/C
PPM
signal
input
status
[No
signal,
Signal
OK]
●
HT
Input
-
Head-tracking
PPM
signal
input
status[No
signal,
Signal
OK]
Up-
and
downlink
status
Toggle
the
joystick
to
the
right
to
show
the
status
of
the
up-
and
downlink.
●
RSSI
-
Received
signal
strength
indicator,
measurement
of
the
power
present
in
a
received
radio
signal
[typ.
-1dBm
(good)
to
-130dBm
(bad),
logarithmic
scale]
●
LQ
-
Link
Quality,
based
on
the
percentage
of
signal
data
received
at
the
end-point
[0
to
300%]
●
SNR
-
Signal-to-noise
ratio,
compares
the
level
of
a
desired
signal
to
the
level
of
background
noise
The
RSSI
determines
your
available
link
budget
on
a
logarithmic
scale,
with
each
additional
-6dBm
representing
twice
the
range
of
your
current
distance.
E.g.
you
are
at
5km
range
with
a
RSSI
of
-84dBm.
At
a
range
of
10km
you
are
expected
to
see
a
-90dBm
RSSI.
The
receiver
is
capable
of
receiving
signals
up
to
-130dBm.
The
SNR
plots
your
current
RSSI
against
the
noise
floor,
giving
you
a
rough
indication
of
the
remaining
range
in
real-time.
The
CROSSFIRE
can
receive
signals
down
to
about
-12dB
SNR,
way
below
the
noise
floor.
Any
SNR
above
8dB
cannot
be
accurately
measured
and
will
result
in
an
SNR
of
8dBm.
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