Sample code to switch SQ to NMEA 4800 bps 8N1:
unsigned char gps0[]={0x10,0x7A,0x00,0x01,0x00,0x00,0x00,0x01,0x10,0x03}; // last but two: GGA and GSV also = 0x09 ... just GGA=0x01 //ends 0x01,0x03
unsigned char gps1[]={0x10,0xBC,0xFF,0x06,0x06,0x03,0x00,0x00,0x00,0x02,0x04,0x00,0x10,0x03};
/* output to 2nd serial port */
and further: