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= Info =

The "MK-GNSS V4 + compass" is a new GPS-receiver with integrated compass. 

Also new are a master and a slave connection.<<BR>>
So you can use the MK-GNSS single or with redundant electronic in your !MikroKopter.

Beside the usual American GPS satellites, the European Galileo system, the Russian Glonas satellite systems or the Chinese !BeiDou satellite systems can be received. 

For suppressing external interference sources (e.g. video systems), the GPS receiver has been equipped with an RF preamplifier, and a SAW RF Filter. 
<<BR>><<BR>>


'''The MK-GPS is required for functions like'''

 * [[en/Features/PositionHold|PositionHold|target="_blank"]] (or PH)
 * [[en/Features/ComingHome|ComingHome|target="_blank"]] (or CH)
 * Waypoint flight ([[en/Waypoint|Waypoints|target="_blank"]])
 * Save the route to SD card in a LOG File 
 * View the current position on the 'OSD' map in the [[en/Waypoint/WP-MAP|KopterTool-MAP|target="_blank"]] 
 * Display distance and speed in the [[en/Transmitter/Graupner_MC32|Graupner HoTT-Telemetry|target="_blank"]]
 * Aligning a camera at a certain point: [[en/Waypoint/WP-MAP|PointOfInterest|target="_blank"]]

All functions that you can use with the navigation system on your !MikroKopter, are described here: '''[[en/Features|MK-Funktion|target="_blank"]]''' 

<<BR>><<BR>>

 '''Shoplink: [[https://www.mikrocontroller.com/index.php?main_page=product_info&cPath=69&products_id=972|MK GNSS V4 + Compass|target="_blank"]]'''

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 {{{#!wiki important 
~+'''INFO:'''+~ <<BR>>
You can use the MK-GNSS V4 __only__ with a !MikroKopter Software __from__ version __V2.18__!

You have to clear the old "SETTINGS.INI" on the microSD-card in your copter. <<BR>>
A new "SETTINGS.INI" with the right settings for the new MK-GNSS will be created automatically.
 }}} 


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= Technical data =

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 * Weight: 29g (MK-GNSS V4 include GPS Shield)
 * Dimensions: 90 x 90mm (Hole distanced: 44,6mm x 44,6mm)  
 * Voltage: 5V (is supplied by FlightCtrl/NaviCtrl)
 * The latest UBlox technology
 * Twin compass system
 * LEDs for status display
 * Redundant configuration
 * Integrated RF preamplifier
 * Integrated Integrated SAW RF Filter
 * GPS
 * Glonass
 * Galileo
 * !BeiDou
 * Japanese QZSS system
 * incl. GPS Shield for improved reception


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= Connection =

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Connect the MK-GNSS via the Molex-connection "Master-GPS" and "Master-Compass" with your !FlightCtrl V3.0.

If your !MikroKopter use a redundant electronic you can connect the Molex-connection "Slave-GPS" and <<BR>>
"Slave-Compass" with the second "Slave"-!FlightCtrl V3.0.

<<BR>><<BR>>

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If you use an older hardware with single !FlightCtrl / !NaviCtrl on your copter you can connect the <<BR>>
"Master - GPS" with your !NaviCtrl. 

If your !MikroKopter use a redundant electronic you can connect the Molex-connection "Slave-GPS" with the second "Slave"-!NaviCtrl.

~-
INFO: <<BR>>
The connection "Master-Compass" and "Slave-Compass" is here not needed because the !NaviCtrl use her own compass. 
-~

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= Satellite selection =

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With the MK-GNSS you can receive the satellite systems ''GPS, Glonass, Galileo, !BeiDou'' and the Japanese ''QZSS_system''.

So you have much more satellites for a much better navigation (especially in areas with inadequate GPS coverage).
<<BR>><<BR>>

In the "SETTINGS.INI" on your microSD-card you can set which satellite you want to use. <<BR>>
With a text editor, this file can be opened and edited.

Via he value for ''GPS_SYSTEM_CFG'' you can change the receiving:

 * 1 = GPS + Glonass + Galileo (Default)
 * 2 = GPS + !BeiDou
 * 3 = GPS
 * 4 = Glonass
 * 5 = !BeiDou
 * 6 = GPS + Glonass
 * 7 = Galileo

In addition, the Japanese ''QZSS_system'' can be activated / deactivated via '' GPS_QZSS_DGPS_ON '':

 * 0 = OFF (Default)
 * 1 = ON


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= GPS Info =


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Via the !KopterTool you can see:

 * the current GPS deviation (the copter should be at the bottom)
  * {i} the center position can be moved by ''right-clicking'' with the mouse
 * the current signal strength of the satellite <<BR>> (Note: outside at least one satellite should have 50dB signal strength. <<BR>> A [[https://www.mikrocontroller.com/index.php?main_page=product_info&cPath=69&products_id=585|GPS-Shield|target="_blank"]] is recommended for a better reception.)
 * Position of the satellites in the sky:
  * light-green satellites: Satellite is used with SBAS-correction data for the navigation
  * dark-green satellites: Satellite is used without SBAS-correction data for the navigation
  * turquoise satellites: Satellite is not used yet for navigation
  * red satellites: signal is bad or Satellite is not useable
  * lila satellites: transmits SBAS-correction data

GPS Navigation-Satellites have the letter "G", SBAS-Satellites "S".<<BR>>
The number is the ID of the satellite (PRN Code).<<BR>>
Details about the satellite is also be shown by moving the mouse over the satellite.

/!\ '''Note:''' If that is in use, the !KopterTool directly accesses the GPS module and the NaviCtrl reports "Error: No GPS Communication"


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## Einfügen Kompass kalibrieren

= Calibrate Compass =
<<Include(en/CalibrateCompass, , from="##Einfügen_Start1", to="##Einfügen_Ende1")>> 
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== Video ==
<<Include(en/CalibrateCompass, , from="##Einfügen_Start2", to="##Einfügen_Ende2")>> 
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== Check the calibration ==
<<Include(en/CalibrateCompass, , from="##Einfügen_Start3", to="##Einfügen_Ende3")>> 


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## Einfügen NMEA

<<Include(en/NMEA, , from="##Einfügen_Start", to="##Einfügen_Ende")>>

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