CCS/EK-TM4C123GXL: Strange output when reading from GPS module gy-neo6mv2

Part Number: EK-TM4C123GXL

Tool/software: Code Composer Studio

Hi 

I am having a connection with uart (interrupt) to a GPS module and everything works fine except for I am getting a weird reading on the serial console.

I want to know how to get like a useful type of the coordinates sent by the GPS

here's the code for UART configuration

// uart0 configuration -> pc serial
void ConfigureUARTSerial(void) {
//    uint32_t g_ui32SysClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
//                        SYSCTL_OSC_MAIN | SYSCTL_USE_PLL |
//                        SYSCTL_CFG_VCO_480), 120000000);
    // Enable the GPIO Peripheral used by the UART.
    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);

    // Enable UART0
    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);

    // Configure GPIO Pins for UART mode.
    ROM_GPIOPinConfigure(GPIO_PA0_U0RX);
    ROM_GPIOPinConfigure(GPIO_PA1_U0TX);
    ROM_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);

    // Initialize the UART for console I/O.
    UARTStdioConfig(0, 4800, 120000000);
}

 and here's the code for ISR 

//PP0 -> RX , PP1 -> TX
void GPSPosition(void)
{
    uint32_t ui32Status;
    ui32Status = UARTIntStatus(UART6_BASE, true);       //get interrupt status
    UARTIntClear(UART6_BASE, ui32Status);               //clear the asserted interrupts
    gucRxChar = UARTCharGet(UART6_BASE);
//    printf("Coordinate : %c",gucRxChar);
    // i want to print the content here to the serial console
    UARTCharPutNonBlocking(UART0_BASE, gucRxChar);
}

here how the output looks like

thanks in advance