Navman LA000508 Datasheet

Also see for Jupiter 20: Manual

Contents

Navman LA000508 Datasheet Manual pdf 14 page image

1LA000507G © 2006 Navman New Zealand. All rights reserved. Proprietary information and specifications subject to change without notice.Table 5‑3 shows the software features available with the Jupiter 20 configurations.Feature Description J20GSW2.3J20SXTracJ20DSiRFDriveSBAS capabilityImproves position accuracy by using freely availablesatellite‑based correction services called SBAS (SatelliteBased Augmentation System)A ADGPS ready Accepts DGPS corrections in the RTCM SC‑104 format E ETricklePower Improves battery life using this enhanced power managementmode A AAdaptiveTricklePowerIntelligently switches between TricklePower and full powerdepending on the current GPS signal level (when TricklePoweris enabled)E yesAdvanced powermanagementImproves battery life using a software‑based powermanagement APush‑to‑Fix Provides an on‑demand position fix mode designed to furtherimprove battery life A AAlmanac toFlashImproves cold start times by storing the most recent almanac toflash memory yes yesLow signalacquisitionAcquires satellites and continues tracking in extremely lowsignal environments yesLow signalnavigationContinues navigating in extremely low signal environments yes1 PPS A timing signal generated every second on the second E Eyes=always enabled A = available E = enabled by default in production unitsTable 5-3: Jupiter 20 software capability6.0 Dead Reckoning input specifications6.1 Gyro input specificationThe specifications shown in Table 6‑1 apply to the Jupiter 20D only.Characteristics Value Unitinput max voltage range max +5, min 0 VDCinput resistance nominal 18.2 kΩnominal bias at zero angular velocity 2.5 VDCnominal scale factor 22.2 mV per degrees/slinearity ± 0.5 max %angular resolution 0.055 degrees/smax gyro angular rate ± 80 degrees/sNote that clockwise rotation should cause the input to riseTable 6‑1: Gyro input specificationsAt the time of publication, recommended manufacturers of gyros are as follows:Murata ENV seriesPanasonic EWTS series(Navman takes no responsibility for the use of these gyros in an application.)6.2 Wheel tick rateThe wheel tick rate is 4 kHz maximum, 1 Hz minimum.6.3 Fwd/Rev input senseThe fwd/rev input sense is: LOW=forward, HIGH=reverse. External pull down is required if thisinput is not used.