def Lte_Chk():
    global Condition
    
    Lflg = 1

    try:
        from mm_dbus_modem import MMModem
        mm_modem = MMModem()
        Condition = mm_modem.signal_quality()
        print('SignalQuality: '+ Condition )
        if int(Condition) > 0:
            Lflg = 0
        else:
            time.sleep(1)

    except Exception as e:
        print(e)
        time.sleep(1)

    return Lflg