Units
The units used to display the speed, distance and altitude can
be changed individually to either Metric, Imperial or Knots.
•
Speed - Metric (km/h), Imperial (mi/h), Knots (kts/h)
•
Distance - Metric (m), Imperial (ft)
•
Altitude - Metric (m), Imperial (ft)
Compass calibration
When the GPS module is connected, the home direction arrow
will only display properly after a 360 degree rotation
calibration has been performed. The calibration sets the
offset value for the compass. To get the best accuracy, do
this outdoors at the field.
•
Step 1 - Move the GPS module away from other
electronics and magnets, select Start Calibration
•
Step 2 - With the GPS module level in your hand, rotate it one full 360 degree turn and press Enter
•
Step 2 - For the first flight the calibration will capture additional data to fine tuned the calibration
•
Note:
an “!” will be displayed next to the home arrow indicating that it is in learning mode
This is only necessary to do this once, but it may be necessary to recalibrate the compass if you have moved a
significant distance away from the initial calibration - the magnetic north will probably be significantly off.
RSSI
The source of the RSSI read-out on the OSD can be one of
three types. If analog (voltage) or digital (PWM) is used, the
maximum and minimum signal strength has to be recorded
using the calibration routine.
•
Source - Analog (voltage)/Digital (PWM)/Link (EzUHF
OSD Link) - RSSI signal type
•
Alarm - Enable/Disable - Will display a textual warning and the RSSI read-out will blink when the signal
is critical
•
Calibration - Used to set the maximum (100%) and minimum (0%) signal value for Analog or Digital
signal source
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