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船舶用GPSシステム Garmin GPSMAP 640のPDF マニュアルをオンラインで閲覧またはダウンロードできます。Garmin GPSMAP 640 24 ページ。 Garmin gps receiver user manual
Garmin GPSMAP 640 にも：インストレーション・インストラクション (2 ページ), クイック・リファレンス・マニュアル (2 ページ), 適合宣言 (6 ページ), (クイック・リファレンス・ガイド (2 ページ), (イタリア語）クイック・リファレンス・マニュアル (2 ページ)

Marine Mode: Using XM WX Weather and Audio

3. Select Menu > Change Weather.

4. Select a different weather chart.

Storm Cell and Lightning information

Storm cell icons

on the Precipitation screen indicate both the present

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position of a storm and the projected path of that storm in the immediate

future.

Red cones appear with a storm cell icon, and the widest part of each cone

points in the direction of the projected path of the storm cell. The red

lines in each cone indicate where the storm will most likely be in the near

future. Each line represents 15 minutes.

Lightning strikes are represented by lightning bolt icons

appears on the Precipitation screen if strikes were detected within the last

seven minutes. The ground-based lightning detection network detects

cloud-to-ground lightning only.

The Precipitation screen can show the present position of a hurricane

a tropical storm, or a tropical depression. A red line stemming from a

hurricane icon indicates the projected path

dots on the red line indicate the projected location of the hurricane in 12-

hour intervals, as received from the weather data provider.

. Lightning

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GPSMAP 640 XM WX Satellite Weather and XM Satellite Radio Supplement

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of the hurricane. Darkened

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