Motorola CDMA-EVDO REV A User Manual
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MC75 User Guide
To access the GPS receiver from multiple programs simultaneously, the user can either use the Microsoft GPS API
or change the GPS program port setting and access the GPS program port in the multiplexed way.
or change the GPS program port setting and access the GPS program port in the multiplexed way.
Operation
Acquiring satellite signals may take a few minutes. It is best to be outside and have a clear, unobstructed view of
the sky. Without a clear view, acquisition takes much longer and could result in the MC75 being unable to compute
the initial position quickly. When operating the device indoors access to the GPS signals may be limited or
unavailable.
the sky. Without a clear view, acquisition takes much longer and could result in the MC75 being unable to compute
the initial position quickly. When operating the device indoors access to the GPS signals may be limited or
unavailable.
GPS Maps on microSD Cards
GPS navigation software vendors may sell maps on microSD cards. If using a microSD card with the GPS
navigation software:
navigation software:
1.
Remove the Memory Card Cover on the side of the MC75.
2.
Insert the microSD card into the slot.
3.
Replace the Memory Card Cover.
Answering a Phone Call While Using GPS
If you receive a phone call while using your GPS navigation software:
1.
Answer the phone call by pressing the Answer button.
2.
Once you end the phone call, press the End Call button to resume the audio on the GPS software.
Losing the GPS Signal While in a Vehicle
GPS performance on the MC75 may be affected if the vehicle has thermal glass windows and windshields, which
can block the MC75 from receiving a GPS signal from satellites. To improve GPS signal strength, place the MC75
where there is a clear view of the sky. A direct line of sight is required between the MC75 and the GPS satellites to
access information from the satellites.
can block the MC75 from receiving a GPS signal from satellites. To improve GPS signal strength, place the MC75
where there is a clear view of the sky. A direct line of sight is required between the MC75 and the GPS satellites to
access information from the satellites.
The Global Positioning System (GPS) is a system that allows the user to track their position anywhere on the earth.
Assisted GPS
GPS can be used in stand-alone or Assisted GPS (A-GPS) modes. A Stand-alone GPS receiver downloads data
from GPS satellites. It can take several minutes to get a fix. By using GPS Location servers, A-GPS dramatically
improves the performance of the Time To First Fix (TTFF) of GPS receivers by providing them with data that they
would ordinarily have to download from the GPS satellites. With the A-GPS data, GPS receivers can operate faster
and more reliably.
from GPS satellites. It can take several minutes to get a fix. By using GPS Location servers, A-GPS dramatically
improves the performance of the Time To First Fix (TTFF) of GPS receivers by providing them with data that they
would ordinarily have to download from the GPS satellites. With the A-GPS data, GPS receivers can operate faster
and more reliably.
NOTE
When using a GPS navigation application, ensure that the MC75 does not go into suspend mode. If the MC75
suspends then the power to the GPS radio is removed. Upon resume the GPS receiver must reacquire a valid GPS
signal, resulting in a a delay of positional information.
suspends then the power to the GPS radio is removed. Upon resume the GPS receiver must reacquire a valid GPS
signal, resulting in a a delay of positional information.
NOTE
Anytime you are using GPS on the MC75 and you receive a phone call, the audio on the GPS navigation software
is muted until you finish the call.
is muted until you finish the call.