User manual

242
Program description - Telemetry
SENSOR2 Indicates values of optional telemetric
sensor 2, in volts and °C
Signal quality (S-QUA)
The signal quality (S-QUA) is sent “live” over the
receiver’s return channel to the transmitter and indi-
cates the signal quality in %.
Reception power (S-dbm)
Reception power (S-dbm) is indicated with negative
values, which means a value of zero is the maximum
value (= best reception) and the lower the values are,
the poorer the reception power! The range test before
operation, among other things, is important for this.
Note:
With negative numbers the evaluation of a number is
reversed: The higher the number following the minus
symbol, the lower the value is. Therefore, a reception
power of -80 dBm, for example, is poorer than one of
-70 dBm.
Perform the range test as described on page 91 or
99 before each flight and, in doing so, simulate all
servo movements which also take place during the
flight. The range must be at least 50 m on the ground
with the range test activated. At this distance, the
value shown under “S-dBm” in the “RX DATAVIEW”
display may not be greater than -90 dBm in order to
guarantee safe operation. The model should never be
operated with a lower value (e. g. -95 dBm). Check the
installation of the receiver system and the position of
the antenna.
The reception power should not drop below -90 dBm
during operation. Otherwise, reduce the distance of
the model. Normally, however, the acoustic range
warning (peep tone interval 1 s) is triggered before
this value is reached in order to guarantee safe op-
eration.
Signal strength (S-STR)
The signal strength (S-STR) is displayed in %. In ge-
neral, an acoustic range warning (peep tone interval
1 s) is issued as soon as the receiver signal becomes
too week in the return channel. However, since the
transmitter has a significantly higher transmission
power than the receiver, the model can still be safely
operated. For the sake of safety, the distance to the
model should be reduced until the warning tone goes
silent again.
Receiver temperature (R-TEM.)
Make sure the receiver remains within the permissible
temperature range during all flight conditions (ideally
between -10 and 55 °C).
The receiver temperature limit, at which a warning
is issued, can be adjusted in the sub-menu »RX
SERVO TEST« under “ALARM TEMP+” (50 … 80 °C
and “ALARM TEMP-” (-20 … +10 °C). When the value
is under-run or over-run, an acoustic signal sounds
(continuous peep tone) and “TEMP.E” will appear at
the top right of all “RX” receiver sub-menus. Addition-
ally, the parameter “R-TEM” will be displayed in in-
verse video on the »RX DATAVIEW« display page.
Data packages (L PACK TIME)
Indicates the longest time span in ms in which data
packages are lost in the transmission from the trans-
mitter to the receiver. In practice, that is the longest
time span in which the remove control system has
entered into fail-safe mode.
Receiver operating voltage (R-VOLT)
Always check the operating voltage of the receiver.
Never operate or even start your model if the operat-
ing voltage is too low.
The receiver low voltage warning can be adjusted be-
tween 3.0 and 7.5 volts in “ALARM VOLT” of the »RX
SERVO TEST« sub-menu. If this range is under-run,
an acoustic signal is sounded (repetitive double peep
tone (long/short)) and “VOLT.E” will appear at the top
right of all »RX …« receiver sub-menus. In addition,
the parameter “R-VOLT” will be displayed in inverse
video in the »RX DATAVIEW« sub-menu.
The current receiver battery voltage is also displayed
in the main display, see page 28.
Minimum receiver operating voltage (L.R-VOLT)
“L.R-VOLT” indicates the minimum operating voltage
of the receiver since the last time it was switched on.
If this voltage should deviate significantly from the
current “R-VOLT” operating voltage, the receiver bat-
tery may be too heavily encumbered by the servos.
The consequence is voltage drops. In this case, use
a more powerful voltage supply in order to achieve
maximum operational safety.
Sensor 1 + 2
Indicates the values of optional telemetric sensors 1
and 2, if present, in volts and °C.
RX SERVO
RX SERVO
REVERSE : OFF
CENTER : 1500µsec
TRIM : –000µsec
LIMIT– : 150%
OUTPUT CH: 01
LIMIT+ : 150%
PERIOD : 20msec
It is very important that you read the notices on page
240 before doing any programming on this display
page.
Value Explanation
Possible
settings
OUTPUT
CH
Channel selection 1 … depending
on receiver
REVERSE Servo reversal OFF / ON