Technical Info

Tested Devices

We have tested our software to some degree on all of these devices:

• Mitac Mio A701 / A700
• HTC P3300 / O2 XDA Orbit / MDA Compact III / Dopod P800W
• HTC 6500
• HTC Tytn II / HTC Kaiser / Vodafone v1615 / Vodafone VPA Compact V / O2 XDA Stellar / T-Mobile MDA Vario III / AT&T Tilt
• HTC Touch Cruise / O2 XDA Orbit II

Untested Devices

These device have the required hardware/software but we haven't tested them:

• E-TEN Glofiish X650
• E-TEN Glofiish M800
• E-TEN Glofiish X600
• E-TEN Glofiish X800
• E-TEN Glofiish X500+
• Asus P550
• Asus P750
• Asus P535
• MiTAC Mio A502
• MiTAC Mio A702
• Hewlett-Packard iPAQ hw6915
• Hewlett-Packard iPAQ hw6910
• Hewlett-Packard iPAQ hw6515
• Hewlett-Packard iPAQ hw6510

PDA Tracking

The PDA tracking software is implemented in 'C' to allow complete control over every aspect of the tracking event. This was necessary to control the battery usage of the tracker and to stop it interferring with normal user usage.

If this device is in sleep mode when a track is required it only wakes up the required parts of the device to perform the tracking i.e. GPS. If a quality fix is found before the timeout specified then we use that and shutdown to conserve power.

After a successfull track the tracker calls another program to send the latest tracks to the GPSTrail web service. This program also only turns on enough to send the data and then sleeps again.