Garmin NavTalk - Manual (Page 16)

4
SECTION 1
Introduction To
NavTalk
1.2 Cellular Phone Overview
Now it’s time to learn the basics of operating the cellu-
lar phone. Let’s begin with a brief overview of the cellular
telephone system. Your NavTalk cell phone uses FM radio
waves instead of conventional telephone lines to place and
receive calls. A cellular telephone network consists of indi-
vidual coverage areas (small sections of a city, typically sev-
eral miles in diameter) called “cells”.
Each cell site has its own antenna located on a
tower which is linked to a Mobile Telephone Switching
Office (MTSO), which connects your call to the public
switched telephone network or transfers it to another
cellular phone.
As you move from one location to another, your call
is handed off to the next cell site to provide the best
signal coverage and call quality. This arrangement of
multiple cells allows you to travel throughout a geo-
graphical area and maintain a quality conversation as
the call is handed off from cell site to cell site. The sig-
nal is affected by atmospheric and geographic condi-
tions which exist at the time you place or receive a call.
Remember, you must subscribe to a cellular system (to
get a phone number) before you can use your cell
phone. If you haven’t been provided with a list of cellu-
lar service providers by your Garmin Dealer then you
need to determine which of the service providers in
your area that you want to use. You may already have a
service provider for a current cell phone and may want
to have your NavTalk programmed to accept your cur-
rent number or add a new one. Remember that:
1. You can program up to three cellular numbers
on the NavTalk.
2. You need to have your battery pack charged and
installed prior to taking your NavTalk to a Service
Provider. Be certain to take along the trickle
charger in the event that the service provider can
not program your NavTalk immediately.
3. Be certain to give the service provider the Service
Provider Instruction Card packaged with your
NavTalk.This will tell the service provider how to
access special programming information needed
to assign a phone number to the NavTalk.
Important!
Make sure you charge
the NIMH battery pack
for 14 to 16 hours
(Trickle Charger) before
using your NavTalk to
ensure optimum capaci-
ty and performance.
Note: Complete instruc-
tions on charging the bat-
tery pack are on Pages
10-11.
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