Garmin GPS Receiver 400/500 User Manual download pdf (Page 19)

Introduction

Section 1

PART TWO:

WEATHER DATA LINK INTERFACE

Section 1: Introduction

The Garmin 400/500 Series units provides the display and control interface for the textual and graphi-

cal weather data link. For the GDL 49, satellite up-linked textual and graphical weather data is received

on a request/reply basis. Transmissions are made using bursts of compressed data at a rate of 4800 bps.

With the addition of software version 4.03 and 5.03, 400/500 Series units can now interface with the

GDL 69/69A. Weather data transmissions are streamed directly to the unit from the XM Satellite Radio

network. Operational differences are noted between the GDL 69/69A and the GDL 49.

Functions provided by the Weather Data Link system include:

• Request for and display of NEXRAD radar imagery.

• Request for and display of text-based METAR data.

• Request for and display of a compressed form of METAR data that allows icon representations at

reporting stations on a moving map indicating visibility, ceiling, etc.

• Position tracking services are provided through periodic position report transmissions from the

400/500 Series unit (available with GDL 49 only).

Weather Products

The following weather products are available for display on the 400/500 Series unit via the

Weather Data Link interface:

• NEXRAD Data

• Graphical METAR Data

• Text-based METAR Data

• Graphical Temperature/Dewpoint Data

• Graphical Wind Data

How it Works:

GDL 49:

NEXRAD and METAR data is collected by the National

Weather Service and disseminated to Meteorlogix™, a weather

information provider. This data is then delivered to a weather

server in the Echo Flight Message System. With the weather

data on the system, an incoming customer request is ﬁlled,

logged, and turned around for delivery to ORBCOMM in less

than ﬁve seconds (ORBCOMM is a provider of global messaging

services using a constellation of 26 low-Earth orbiting satel-

lites). The message is relayed from the satellites to the GDL 49

aboard the aircraft. Once the GDL 49 receives the message, it is

displayed on the 400/500 Series unit.

GDL 69/69A:

NEXRAD and METAR data is collected by the National

Weather Service and disseminated to WxWorks™, a weather

information provider. This data is then delivered to XM Satel-

lite for rebroadcast. Data from two XM satellites is then made

immediately available to XM customers. The GDL 69/69A

receives streaming weather data, processes the data, then sends

it to the 400/500 Series unit for display.

XM provides “Weather to the power of X!”, servicing marine,

aviation and emergency management needs for real-time

weather information”.

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 75 76

Comments to this Manuals

No comments

Garmin GPS Receiver 400/500 User Manual Page 19

Comments to this Manuals

Related products and manuals for Navigators Garmin GPS Receiver 400/500