Motorola M12 Oncore Guide de l'utilisateur télécharger pdf (Page 31)

Chapter 3 – Receiver Description

Motorola GPS Products - Oncore User’s Guide

MEAN TIME BETWEEN FAILURE (MTBF)

The MTBFs for the Oncore family of GPS receivers have been computed using the

methods, formulas, and database of MIL-HDBK-217.

Table 3.9: Oncore Receiver Mean Time Between Failure (MTBF)

Average

temperature (ºC)

VP Oncore

MTBF (hours)

GT/UT Oncore

MTBF (hours)

40 596,921 1,114,077

35 777,404 1,285,262

30 927,386 1,467,496

25 1,164,043 1,649,656

The above information is computed assuming a static application in a benign

environment at the given temperatures. These reliability predictions only provide

broad estimates of the expected random failure rates of the electrical components

during the useful life of the product, and are not to be used as absolute indications of

true field failure rates. The above MTBF values may not correspond to actual field

failure rates.

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Motorola M12 Oncore Guide de l'utilisateur Page 31