[plunker]

from the palm site manual for the 700wx
298 Section 6B: Customizing Your Smart Device
Setting Up a GPS Device
If you purchased an optional Global Positioning System (GPS) receiver, your
smart device can show your exact location on a map.
1. Press Start and select Settings.
2. Select the System tab, and then select GPS .

3. On the Programs tab, select the GPS program port list, and then select the
port for applications to use to access GPS information. (This port must also
be selected in your GPS application’s configuration settings.)
4. Select the Hardware tab.
5. Select the GPS hardware port list, and then select the port to which your GPS
receiver is connected. (This must be a different port from the one you set in
step 3 as your program port. To connect to the GPS device using a Bluetooth
connection, you must first set up a partnership between the two devices.
See “Setting Up a Bluetooth Connection” on page161.)
6. Select the Access tab and check the Manage GPS automatically box. This
setting lets more than one application simultaneously access your GPS
information.
So you need to get a receiver to make it work