Blaze AHRS-2 / AHRS-4 / MAG-2 Operating Manual
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Default Settings:
Select this menu option to reset all the settings to factory defaults.
Model:
This menu option is used to select which model of display you have. Select MAG-2 if you
only want a compass display as then all menus pertaining to the AHRS-2 will be hidden.
5 Using the AHRS-2 / AHR-4 / MAG-2 and SP-X sensor
packages in flight
The pilot in command of the aircraft has to be aware of the following:
The AHRS-4 and SP-X sensor packages are not certified by the FAA or any other agency for use during IFR (in -
strument flight rules). This implies that any such flight that uses the AHRS-4 / SP-X sensor packages as refer -
ence for either heading, turn and bank or horizon is illegal.
6 RS232 NMEA enabled GPS receiver message
The AHRS-2 / AHRS-4 and MAG-2 have the ability to be connected to a NMEA enabled RS232 GPS receiver to allow the
AHRS-2 to use the actual ground speed in the attitude aiding algorithms.
The NMEA enabled RS232 GPS receiver must be able to output a GPRMC message (The Recommended Minimum sen-
tence defined by NMEA for GPS/Transit system data.) This message is defined as:
$GPRMC,hhmmss,status,latitude,N,longitude,E,spd,cog,ddmmyy,mv,mvE,mode*cs<CR><LF>
Example: $GPRMC,083559.00,A,4717.11437,N,00833.91522,E,0.004,77.52,091202,,,A*57