Preface iiiContentsPrefaceSafety noticesEMC conformanceAll Raymarine equipment and accessories are designed to the best industrystandards for use in the recreational marine environment.The design and manufacture of Raymarine equipment and accessories conform tothe appropriate Electromagnetic Compatibility (EMC) standards, but correctinstallation is required to ensure that performance is not compromised.Certified installationRaymarine recommends certified installation by a Raymarine approved installer. Acertified installation qualifies for enhanced warranty benefits. Contact yourRaymarine dealer for further details and refer to the separate warranty documentpacked with your product.Product documentsThe following user documents are available for ST70:• ST70 Operating Guide. Comprises a series of individual operating cards, whichprovide day-to-day operating and setting up procedures. Intended for all users.• ST70 User Reference Manual (this document). Intended for users in general andcommissioning personnel in particular. It describes:• Commissioning procedures. These describe how to set up an ST70 instru-ment when first switched on after installation.• Setup procedures not included in the Operating GuideWARNING: Product installation & operationThis equipment must be installed, commissioned and operated inaccordance with the Raymarine instructions provided. Failure todo so could result in personal injury, damage to your boat and/orpoor product performance.WARNING: Electrical safetyMake sure you have switched off the power supply before you startinstalling this product.WARNING: Navigational safetyAlthough we have designed this product to be accurate andreliable, many factors can affect its performance. Therefore, itshould serve only as an aid to navigation and should never replacecommonsense and navigational judgement. Always maintain apermanent watch so you can respond to situations as theydevelop.