Specifications
WM_PRJ_Q2501_PTS_001 – 003
March 2004
© 2003 All rights reserved
Page: 9 / 93
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son
autorisation préalable.
1 References
1.1 Reference Documents
[1] Automotive Environmental Control Plan for WISMO Quik Q2501
Ref. WM_PJQ_Q2501_DCP_001
[2] WISMO Quik Q2501 Customer Design Guidelines
Ref. WM_PRJ_Q2501_PTS_002
[3] WISMO Quik Q2501 Process Customer Guideline
Ref. WM_PRJ_Q2501_PTS_003
[4] AT Commands Interface Guide for revision X50
Ref. WM_ASW_OAT_UGD_016
[5] Specific AT commands for GPS management
Ref. WM_RNASW_Q2501_UGD_001
1.2 Glossary
Term Definition
Performing a FIX Means the GPS receiver is able to compute a
position
Dead reckoning GPS Feature that allows navigation with poor/no
satellites view by the aid of external sensors that
provide course (odometer) and heading
(gyroscope).
Single Coax
WAVECOM concept that allows the user to use
only one single coaxial cable for both GSM and
GPS RF signal to connect the WISMO Quik Q2501
module to the antennas.
The antennas are most of the time physically
distinct but connected to the WISMO Quik Q2501
module by a single coaxial cable through an
antenna switch system, saving a second coaxial
cable.
Cold Start
Powering up a unit after it has been turned off for
an extended period of time and no longer contains
current ephemeris data. In Cold Start Scenario, the
receiver has no knowledge on last position,
approximate time or satellite constellation. The
receiver starts to search for signals blindly. This is
normal behavior, if no backup battery is connected.
Cold Start time is the longest startup time for GPS
receivers and can be several minutes.