def METHOD_NAME(self, ac_id, msg):
    self.callsign = "ID=" + str(ac_id)
    if msg.name == "INS_REF":
        self.qfe = round(float(msg['baro_qfe'])  / 100.0,1)
        wx.CallAfter(self.update)
    elif msg.name =="ROTORCRAFT_FP_MIN":
        self.gspeed = round(float(msg['gspeed']) / 100.0 * 3.6 / 1.852,1)
        self.alt = round(float(msg['up']) * 0.0039063 * 3.28084 ,1)
        wx.CallAfter(self.update)
    elif msg.name =="ROTORCRAFT_FP":
        self.alt = round(float(msg['up']) * 0.0039063 * 3.28084 ,1)
        wx.CallAfter(self.update)
    elif msg.name =="AIR_DATA":
        self.airspeed = round(float(msg['airspeed']) * 3.6 / 1.852,1)
        self.qnh = round(float(msg['qnh']),1)
        self.amsl = round(float(msg['amsl_baro']) * 3.28084,1)
        wx.CallAfter(self.update)