Re: ublox max 7

Bill Brown
 

You have to set the MAX-7Q up for Airborne mode to make it work and it will fail at 40,000 feet if you don't. - Bill WB8ELK

Here is how I do it:

============================================
unsigned char setNav[] = {
    0xB5, 0x62, 0x06, 0x24, 0x24, 0x00, 0xFF, 0xFF, 0x06, 0x03, 0x00, 0x00, 0x00, 0x00, 0x10, 0x27, 0x00, 0x00, 0x05, 0x00, 0xFA, 0x00, 0xFA, 0x00, 0x64, 0x00, 0x2C, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0xDC  };

//  Set uBlox MAX series to Airborne Mode

   for(int i=0; i<44; i++){ // 
     Serial.write(setNav[i]);
   }
============================================

// The whole GPS_setup routine:(put the setNav array shown above in Global variable section or in the function)

// ****************************************/
void setupGPS() 
// *****************************************
{
  // setup serial port for u-Blox MAX-7C GPS new 110115
    Serial.begin(9600); // to talk to GPS Modem via RX and TX pins 0 and 1
       delay(10);
    Serial.flush();
       delay(10); 

// Configure uBlox MAX to only output GGA and RMC messages  
  Serial.println("$PUBX,40,GLL,0,0,0,0*5C");
  delay(1000);
//  Serial.println("$PUBX,40,GGA,0,0,0,0*5A");
//  delay(1000);
  Serial.println("$PUBX,40,GSA,0,0,0,0*4E");
  delay(1000);
//  Serial.println("$PUBX,40,RMC,0,0,0,0*47");
//  delay(1000);
  Serial.println("$PUBX,40,GSV,0,0,0,0*59");
  delay(1000);
  Serial.println("$PUBX,40,VTG,0,0,0,0*5E");
  delay(3000);

// Set up uBlox MAX series to Airborne Mode
   for(int i=0; i<44; i++){ // 
     Serial.write(setNav[i]);
   }
   
   delay(500);
   
   Serial.end(); // new 110115
     
   return;
}
// ---------------end of setupGPS()----------------------/

You can check to see if you have successfully configured the uBlox MAX to be set for Airborne mode by looking at the response to this command:

unsigned char checkNav[] = {0xB5, 0x62, 0x06, 0x24, 0x00, 0x00, 0x2A, 0x84};

    for(int i=0; i<sizeof(checkNav); i++){ 
      Serial.write(checkNav[i]);
    }



-----Original Message-----
From: Nick Pugh K5QXJ <quadpugh@...>
To: GPSL <GPSL@groups.io>
Sent: Tue, Aug 20, 2019 3:08 pm
Subject: [GPSL] ublox max 7

The sat team and the University of Louisiana wants to fly a Ublox max7 and would like to know the string to send to make it work > 18,000 meters
 
 
 
 
 
 
nick
 
Cell      337 258 2527
 
Helping UL become a world Class Engineering  and Educational School
Disagree I Learn
 
 

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