M10478 Datasheet, PDF (14/30 Pages) List of Unclassifed Manufacturers – GPS RADIONOVA® RF Antenna Module

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m2m
GPS RADIONOVA^® RF Antenna Module
Part No. M10478
By default, the PTF Mode period is 30 minutes. It is programmable between 10 seconds and 2 hours. When
the PTF Mode is enabled at power on or a new PTF Mode cycle, the receiver stays on FP Mode until a good
navigation solution is computed. The Hibernate state follows for the remainder of the period. If it takes 36
seconds to fix position and refresh ephemeris on the default period of 30 minutes, the GPS sleeps for the 29
minutes and 24 seconds.
Upon wakeup, the module will remain in full power mode until a good navigation solution is found.
Micro Power Mode (MPM)
MP Mode is a very low-power maintenance mode. The objective of MP Mode is to remain below a stated
average current level while maintaining a low level of uncertainty in time, frequency, position and ephemeris
state.
MP Mode operates by capturing a buffer of GPS samples at infrequent intervals and analysing the data
to update its time, frequency and position estimates. For satellites needing updated ephemeris data, a
data collection is scheduled when strong signals are detected. During the data collection phase, time and
frequency calibration operations are also carried out.
When switched on the module updates in cycles, usually 1-10 minutes, or maintenance cycles of 30–60
minutes.
Typical Capture/Update frequency varies: about once every ten minutes for 9 seconds. Data collection is
twice an hour at ~18 seconds each.
Please contact Antenova for more information for MPM and all other low power states.
SiRF Instant Fix (AGPS)
There are two methods to acquire extended ephemeris data:
• SGEE (Requires network connections)
• CGEE (Module Generated - no network connection needed)
SGEE (Server Generated Extended Ephemeris)
SGEE requires periodically accessing servers to download an extended ephemeris (EE) file and transfer it to
GSD4e. GSD4e can store EE data to serial EEPROM, flash or host.
CGEE (Client Generated Extended Ephemeris)
The M10478 supports CGEE (Client Generated Extended Ephemeris). CGEE functionality enables devices
without an Internet connection to generate EE information based on BE collected from satellites during normal
use. This means the module will collect data automatically to generate a predicted ephemeris file, which
can dramatically reduce TTTF. The CGEE is default ON, but only if the module has an external serial flash
connected to the SPI bus to be able to store the data. Up to 31 days of predicted data can be stored.
Please contact Antenova for more information on SGEE and CGEE
Antennas for Wireless M2M Applications
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Product Specification 12MD-0050-2-PS