Rx Dataview - GRAUPNER MX-10 HOTT Programming Manual

Country selection (COUNTRY)
The Country setting is present in order to cater for vari-
ous directives (FCC, ETSI, IC etc.). The HoTT 2.4 radio
system features a restricted frequency band for France.
If you wish to use the RC system in France, the country
setting on the transmitter must be set to "France" mode,
as described. It is essential not to use the Universal/
EUROPE mode. Factory setting is GENERAL.
Range checking (RANGE TEST)
switches the range test on or off, the remaining time is
displayed. The display also works if the range check
is started with the BIND / RANGE button on the trans-
mitter.

RX DATAVIEW

... you cannot enter any settings. This page is for infor-
mation purposes only:
RX DATAVIEW
S–QUA100%S–dBM–030dBM
S–STR100% R–TEM.+28°C
L PACK TIME 00010msec
R-VOLT :05.0V
L.R-VOLT:04.5V
SENSOR1 :00.0V
SENSOR2 :00.0V
Value Explanation
S-QUA Signal quality in %
S-dBm Receive performance in dBm
S-STR Signal strength in %
R-TEM. Receiver temperature in °C
L PACK TIME Indicates the time in ms for which
the longest data packet was lost in
transmission between transmitter and
receiver
R-VOLT Current receiver operating voltage, in
Volt
Signal quality (S-QUA)
The signal quality (S-QUA) is sent "live" to the transmit-
ter via the receiver's downlink channel, and shows the
signal strength in %.
Receive performance (S-dBm)
The receive performance (S-dBm) is displayed as a ne-
gative value, i. e. a value approaching zero is the highest
value (= best reception). The lower the value falls, the
worse is the receive performance. This is an important
item of information, particularly when you are carrying
out a range-check before operating the model.
Note:
In the case of negative numbers the value is reversed:
the higher the number following the minus sign, the
lower the value.
00°C
Carry out a range-check as described on pages 62 and
00°C
71 before every fl ight, and remember to simulate all the
servo movements which are likely to occur in the air.
In active range-check mode the range must be at least
fi fty metres on the ground. To guarantee safe operation
of your model, a value no higher than -80 dBm must be
displayed in the "RX DATA" display under "S-dBm" at this
distance. If the value falls below this (e. g. -85 dBm), you
should under no circumstances fl y your model. Instead
check the receiving system installation and the aerial
positions.
When operating a model this value should not fall below
-90 dBm; if it does, reduce the distance between the
pilot and the model. However, the audible range war-
ning (beeping at one-second intervals) will normally be
triggered before this value is reached, in order to ensure
safe operation.
Signal strength (S-STR)
The value for signal strength (S-STR) is displayed in %.
An audible range warning (beeping at one-second inter-
vals) will always be generated as soon as the receiver
signal in the downlink channel is too weak. However,
since the transmitter has a much higher transmitting
power than the receiver, the model can still be operated
safely at this point. Nevertheless, in the interests of
safety the distance to the model should be reduced until
the audible warning ceases.
Receiver temperature (R-TEM.)
Ensure under all fl ight conditions that the receiver stays
within its specifi ed temperature range (ideally between
-10 and +55°C).
The limit values for receiver temperature after which
a warning occurs can be set in the "SERVO TEST"
sub-menu under "ALARM TEMP+" (50 ... 80°C) and
"ALARM TEMP-" (-20 ... +10°C). If the temperature
exceeds or falls below the set limit, an audible signal
(continuous beeping) is triggered, and "TEMP.E" is
displayed at top right in all the "RX" receiver sub-menus.
At the same time the "R-TEM" parameter is highlighted
on the "RX DATAVIEW" screen page.
Data packets (L PACK TIME)
This displays the longest period in ms in which data
packets were lost in transmission from the transmitter to
Program description: Telemetry menu 115