NAVIGON questions and answers

There are different reasons for bad GPS reception.
In this article some of the most common ones should be shown:

▪     Basically, good reception of GPS data requires an unobstructed path from
      the receiver to the satellites. Tunnels, narrow thoroughfares between
      buildings and reflecting house fronts can restrict GPS reception greatly or
      make it impossible.

▪     When the GPS receiver or the navigation device is inside a vehicle
      with a metallised windscreen or a windscreen heater, those might be
      causes for poor GPS reception.

▪     If necessary, place the GPS receiver near the rear-view mirror.
      Here there is often no metallised surface or heating wire.
      Alternatively, an external GPS antenna can be connected to most
      GPS receivers and navigation devices. Please notice that there are
      various types of connector. For details of the socket on your device
      refer to the manual issued for the device in question.

▪     It can take up to 20 minutes to initialise a GPS receiver for the first time.
      Each time you switch on the navigation device or the GPS receiver,
      GPS reception will start within a short time after. If more than a week
      has passed since the navigation device or the GPS receiver was last
      switched on, it can take up to 10 minutes to initialise it the next time.

▪     GPS reception can also be obstructed by external conditions.
      In multi-storey car parks or tunnels, for example, reception
      is often greatly restricted or impossible.

▪     The commencement of GPS reception may be delayed if you set
      off before the software indicates correct GPS reception. If you are
      using an external GPS receiver, this one must be connected to the
      navigation device by cable or by wireless Bluetooth.