Navman LA000508 Datasheet

Also see for Jupiter 20: Manual

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Navman LA000508 Datasheet Manual pdf 6 page image

LA000507G © 2006 Navman New Zealand. All rights reserved. Proprietary information and specifications subject to change without notice.2.8 EnvironmentalThe environmental operating conditions of the Jupiter 20 are as follows:temperature: –40ºC to +85ºChumidity: up to 95% non‑condensing or a wet bulb temperature of +35ºCaltitude: –304 m to 18 000 mvibration: random vibration IEC 68‑2‑64max. vehicle dynamics: 500 m/sshock (non‑operating): 18 G peak, 5 ms2.9 CompliancesThe Jupiter 20 complies with the following:Directive 2002/95/EC on the restriction of the use of certain hazardous substances inelectrical and electronic equipment (RoHS)CISPR22 and FCC: Part 15, Class B for radiated emissionsAutomotive standard TS 16949Manufactured in an ISO 9000 : 2000 accredited facility2.10 Marking/SerialisationThe Jupiter 20 supports a code 128 barcode indicating the unit serial number. The Navman13‑character serial number convention is:characters 1 and 2: year of manufacture (e.g. 06 = 2006, 07 = 2007)characters 3 and 4: week of manufacture (1 to 52, starting first week in January)character 5: manufacturer codecharacters 6 and 7: product and typecharacter 8: product revisioncharacters 9-13: sequential serial number3.0 Performance characteristics3.1 TTFF (Time To First Fix)TTFF is the actual time required by a GPS receiver to achieve a position solution. Thisspecification will vary with the operating state of the receiver, the length of time since the lastposition fix, the location of the last fix, and the specific receiver design.3.1.1 Hot startA hot start results from a software reset after a period of continuous navigation, or a returnfrom a short idle period (i.e. a few minutes) that was preceded by a period of continuousnavigation. In this state, all of the critical data (position, velocity, time, and satelliteephemeris) is valid to the specified accuracy and available in SRAM (Static Random AccessMemory). Battery backup of the SRAM and RTC during loss of power is required to achieve ahot start.3.1.2 Warm startA warm start typically results from user‑supplied position and time initialisation data orcontinuous RTC operation with an accurate last known position available in memory. In thisstate, position and time data are present and valid but ephemeris data validity has expired.3.1.3 Cold startA cold start acquisition results when either position or time data is unknown. Almanacinformation is used to identify previously healthy satellites.••••