Garmin NavTalk Pilot - Manual (Page 18)

xvi
Introduction to
NavTalk Pilot
Section 1
Cellular Phone Overview
Now it’s time to learn the basics of operating the cell
phone. Let’s begin with a brief overview of the cellular
telephone system. Your NavTalk Pilot cell phone uses
radio waves instead of conventional telephone lines to
place and receive calls. A ground based cellular telephone
network consists of individual coverage areas (small
sections of a city, typically several miles in diameter)
called “cells”. An air based cellular network is structured
in a similar manner with separate air cellular frequencies
that are linked to a conventional cellular network.
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 geographical area
and maintain a quality conversation as the call is handed
off from cell site to cell site. The signal is affected by
atmospheric and geographic conditions that exist at the
time you place or receive a call. The NavTalk Pilot is
preprogrammed with a Number Assignment Module
(NAM) for AirCell
® service. You can only use AirCell
service when the unit is connected to the AirCell adapter
installed in your aircraft. To view the current status of
AirCell coverage access the AirCell website at:
www.aircell.com.
Remember, you must subscribe to a ground cellular
system (to get a ground based phone number) before you
can use your cell phone for ground based cellular phone
calls. If you haven’t been provided with a list of ground
cellular 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 you may
want to have your NavTalk Pilot programmed to accept
your current number or add a new one.
Important!
Make sure you charge the
NiMH battery pack for 14
to 16 hours (Trickle
Charger) before using your
NavTalk Pilot to ensure
optimum capacity and
performance. Complete
instructions on charging
the battery pack are on
Pages 11-12.
4