Vega AHRS-1 / MAG-1 Operating Manual
Page 8
4.3 Compass Setup
Display:
Select the style of the compass tape as in section display mode as described in section 3.3 above
Heading:
Select whether you would like the instrument to display magnetic or true heading. If you select true heading, you need to
enter the correct magnetic variation for your location. You can find your local variation on aeronautical or maritime
charts. The heading displays will be augmented with °M or °T depending on the mode you have selected.
Variation:
Enter the magnetic variation of your location. This is only used if you would like the instrument to display true heading.
True heading is the heading relative to the geographic North Pole. Magnetic heading is the heading relative to the
magnetic North Pole. Variation is expressed in degrees east or west. Please note that should you move a long distance,
you may have to update the variation setting. This setting may be ignored if you only use the magnetic heading display
option.
Filter:
Select the filter factor for the compass heading. A selection of
"NONE"
,
"LOW"
,
"MED"
or
"HIGH"
can be made. This can
improve the stability of the compass.
Slip:
Select if you would like to enable the slip indicator to be shown underneath the horizon display. The slip indicator
operates in the same fashion as the well known “step on the ball” indicator in traditional cockpits.
Slip Sense:
Select if you want the slip to have a high sensitivity or a low sensitivity setting.
Slip Zero:
This function allows you to set your slip indicator to exactly zero even if your aircraft tends to fly slightly wing down. The
procedure is to place the aircraft in a stable, straight and level attitude during calm flight conditions and then select this
function. To cancel the correction, place your sensor absolutely horizontal (use a spirit level) and select the function
again.
Can Address:
Select the CAN address of the SP-X compass sensor.
Calibrate
This allows calibration of the magnetic sensor.
