AA003041-G Navman Wireless, AA003041-G Datasheet - Page 9

• Manufacturer Part Number: AA003041-G
• Description: MODULE JUPITER 31 GPS W/R/A OSX
• Manufacturer: Navman Wireless

Specifications of AA003041-G

• Frequency: 1.575GHz
• Sensitivity: -159dBm
• Modulation Or Protocol: GPS
• Applications: GPS
• Data Interface: Connector, 2 x 10 Header, 2 mm Pitch
• Antenna Connector: OSX
• Voltage - Supply: 3.3V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Data Rate - Maximum: -
• Current - Receiving: -
• Other names: 943-1007

3.8 Sensitivity
Sensitivity of the Jupiter 31 is measured assuming a system noise value of 3 dB. The sensitivity
values are shown in Table 3-2:
3.9 Dynamic constraints
The Jupiter 31 receiver is programmed to deliberately lose track if more than one of the following
operational limits are exceeded:
3.10 Position and velocity accuracy
The position and velocity accuracy of the Jupiter 31 are shown in Table 3-3, assuming full
accuracy C/A code. These values are the same in normal operation and when Adaptive
TricklePower is active.
3.11 Multi-mode aiding
Multi-mode aiding technology makes navigation information available to GPS devices when
enough Satellite Vehicles (SVs) are not visible due to obstruction. In autonomous operation
mode, the GPS receiver requires a signal level of 28 dBHz or higher in four or more SVs to
download ephemerides. This requires an uninterrupted full 30 seconds of data reception from
each SV. If the data isn’t received in full, the ephemeris data collection has to start again at the
next cycle.
The type of multi-mode aiding currently supported by the Jupiter 32 xLP is Ephemeris Push.
This feature supports live ephemeris data to be downloaded from application servers that
allows hot start performance at all times including in weak conditions and moving start ups. The
ephemeris would typically be valid for 4 hours until the live ephemeris is downloaded or new
ephemeris data is provided.
To use with this Ephemeris Push, the live ephemeris data is collected at application servers and
then transmitted to the GPS receiver through a network connection. An application note about
Ephemeris Push is in preparation and will be available at a later date.
LA010811B © 2008 Navman Wireless OEM Solutions. All rights reserved. Proprietary information and specifications subject to change without notice.
Velocity:
Altitude:
515 m/s (1,000 nautical miles per hour) maximum
18,000 m (60,000 ft) maximum referenced to MSL
acquisition - cold start
acquisition - hot start
navigation
tracking
Table 3-3: Position and velocity accuracy
* position error 0% and under normal open sky
conditions
** In 3D Kalman filtered mode in steady state oen
sky conditions
Table 3-2: GPS receiver sensitivity
Parameter
horizontal (2 dRMS)
velocity (heading)**
velocity (speed)**
horizontal CEP*
vertical VEP*
Parameter
–155 dBm
–159 dBm
–144 dBm
–157 dBm
C/No
< 0.01m/s
< 0.01
Value
2.5 m
5.5 m
2.0 m
10 dBHz
26 dBHz
15 dBHz
13 dBHz
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