User manual

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Appendix F� Helpful tips
YourBlumaxBluetoothGPS-4012Receivershouldbetreatedwithcareandprop-
erlymaintainedtoensurethebestperformance.Keepinmindthesehelpfultips
when using your receiver:
- Somevehicleshavingheavymetallicsunprotectingcoatingonwindshields,
which may affect signal receptions
- Drivinginandaroundhighbuildingsmayaffectsignalreceptions.
- Drivingundertunnelsorinbuildingsmayaffectsignalreceptions.
- LowbatteryofaPDAorofanBlumaxBluetoothGPS-4012Receivermay
affect signal receptions.
- Pleasecheckthecorrect“COM”and“Baudrate”ofyourPDA.
- Ingeneral,anyGPSreceiverperformsbestinopenspacewhereitcansee
 cleansky.AlsoweatherwillaffectGPSreception–rain&snowcontribute
to worse sensitivity.
- BlumaxBluetoothGPS-4012Receiveroutputdataupdateseverysecond,
thus the actual position and the position in your map may have time delay.
This may happen when you drive at higher speed or make a turn around a
corner.
- NotethatBlumaxBluetoothGPS-4012Receivermaynotworkindoors 
where it can not see the sky.
- Forthe1sttimeyouusetheBlumaxBluetoothGPS-4012Receiver,itwill
 take1to3minutestogetthesatelliteconstellationandxyourposition,this
 iscalled“ColdStart”.Ifyoureplacethebattery,BlumaxBluetoothGPS-4012
 ReceiverwilldoColdStartagain.
- IfyourBlumaxBluetoothGPS-4012Receivercan’txyourpositionfor
 morethan20minutes,wesuggestyouchangetoanotheropenspaceand
then try again.