def CheckVals(callsignKey, dataKey, value):
            print "CheckVals if callsign in nvalues: ", callsignKey, " key: ", dataKey, " Value: ", value 
            if nvalues.has_key(callsignKey) == 1:
                print "nvalues already has entry: ", callsignKey
            else:
                print "nvalues doesn't exist for callsignKey: ", callsignKey
                nvalues[callsignKey] = {}
                nvalues[callsignKey] = {'latitude': 0, 'longitude': 0, "altitude": 0, "speed": 0, 'maxA': 0}
                nvalues[callsignKey][dataKey] = value
                print "nvalues for callsignKey: ", callsignKey, " is: ", nvalues[callsignKey]