216
UNDERSTANDING YOUR INSTRUMENT PANEL
Outsid e Temperatu re
Two Types of Signals
If the outsid e tem peratu re is more than 131°F (55°C), the
display will show 131°F (55°C). When the outsid e tem -
peratu re is less than Ϫ40°F (Ϫ40°C), the display will
show Ϫ40°F (Ϫ40°C).
There are two basic typ es of rad io signals... AM or
Amplitude Mod ulation, in which the transm itted sou nd
causes the amplitude, or height, of the rad io waves to
vary... and FM or Frequ ency Mod ulation, in which the
frequ ency of the wave is varied to carry the sou nd .
RADIO GENERAL INFORMATION
Electrical Disturbances
Radio Broadcast Signals
Radio waves may pick up electrical distu rbances during
transm ission. They mainly affect the wave amplitude,
and thu s rem ain a part of the AM recep tion. They
interfere very little with the frequ ency variations that
carry the FM signal.
Your new rad io will provid e excellent recep tion und er
most operating cond itions. Like any system , how ever, car
rad ios have perform ance limitations, due to mobile op-
eration and natu ral phenom ena, which might lead you to
believe you r sou nd system is malfunctioning. To help
you und erstand and save you concern abou t these “ap -
parent” malfunctions, you must und erstand a point or
two abou t the transm ission and recep tion of rad io sig-
nals.
AM Reception
AM sou nd is based on wave amplitude, so AM recep tion
can be disru pted by such things as lightning, power lines
and neon signs.
| Categories | Jeep Manuals, Jeep Wrangler Manuals |
|---|---|
| Model Year | 2007 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)