What does the “test gps” button do, What info does “test gps” show in the box, What does “hepe” mean – Sprint Nextel U727 User Manual
Page 135: What is a gps signal, What is the gps space plane, What is the gps user plane
Section 3B: Location Based Services
127
see the Location & Search Services section on page 76 for more
details.
What does the “Test GPS” button do?
It provides a quick way to validate if the device is able to obtain
location coordinates — if this works then the application used
with this device in the same location will also work.
What info does “Test GPS” show in the box?
It tests the GPS mode that the device is configured for. In the case
of the Sprint Mobile Broadband devices, it will test for MS-Based
GPS, and is used for testing if the satellites are available.
Autonomous and MS-Assisted GPS are not available in this
version.
What does “HEPE” mean?
HEPE (Horizontal Estimated Position Error) is an Estimated Position
Error (EPE) without considering the inaccuracy of your altitude
reading. Because of the inherent difficulty of calculating altitude
with GPS, an HEPE is usually a smaller number than EPE.
What is a GPS signal?
GPS satellites transmit signals to equipment on the ground. GPS
receivers passively receive satellite signals, but do not transmit.
There are various GPS standards consisting of three major
segments: Space, Control and User Plane.
What is the GPS Space Plane?
The GPS Space Plane refers to the more than two dozen GPS
satellites that orbit the earth, transmitting radio signals.
What is the GPS User Plane?
It is the ability to execute GPS requests at the subscriber level on
the device.