Lowrance electronic Lowrance iWAY 250C User Manual

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WAAS means your GPS is receiving reliable correction signals from the

FAA's Wide Area Augmentation System. WAAS is designed for use in

aircraft but occasionally terrestrial vehicles can attain a WAAS lock.

This is the most accurate position signal available.

EPE (Estimated Position Error)

The Estimated Position Error or EPE is shown right next to the Cur-

rent Position Lock buttons. This value represents the expected error

from a benchmark location.
In other words, if the EPE shows 50 feet, then the position shown by

the unit is estimated to be within 50 feet of the actual location. This

also gives you an indicator of the fix quality the unit currently has.
The smaller the position error number the better (and more accurate)

the fix is. If the position error flashes dashes then the unit hasn't

locked onto the satellites and the number shown isn't valid.

Satellite Display

A white circle that serves as a graphical view of the satellites overhead

fills much of the right half of the screen. Each satellite is shown on the

circular chart relative to your position. The GPS receiver is tracking

satellites that are in blue type. The receiver hasn't locked onto a satel-

lite if the number is in dark blue, so it isn't being used to track the po-

sition.

Lat/Lon Coordinates

Beneath the Satellite Display, you can see your Coordinates in Lati-

tude and Longitude. These numbers can be used to pinpoint your loca-

tion on any map, or to create contacts at your position on another GPS.

Transfer Data
In addition to storing media files such as music and pictures you can

use MMC or SD Cards to store and transfer GPS data recorded on the

unit. This is a handy way to save contacts that you have created, trails

of places you have been and routes you have set up.

To save data to your memory card or to load data from your memory

card choose the

RANSFER

ATA

command from the Options Menu. Tell

the iWAY whether you want to

OAD

data for the iWAY to display and

use or

AVE

data to the card to store or transfer it to another GPS unit.

If you want to Load data choose the dropdown box and make sure to

select the filename of the GPS Data File you want to load. If you are

saving data you can select the Filename text box to enter a new name

describing the data you are saving.