Cadillac 1993 Fleetwood Owners Literature page 158

AM
The range for most AM stations is greater than for FM, especially at
night. The longer range, however, can cause stations to interfere with
each other. AM can pick up noise from things like storms and power
lines.
Dolby@
This feature automatically removes noise on Dolby encoded tapes (no
button is required).
AM Stereo
This means the Delco@ system can receive C-QUAM@ stereo broadcasts.
Many AM stations around the country use C-QUAM@ to produce stereo,
though some do not. (C-QUAM@ is a registered trademark of Motorola,
Inc.) If your Delco@ system can get C-QUAM@, your "ST" light will
come on when you're receiving it.
*Dolby@ is a registered trademark of Dolby Laboratories.
This means that your sound system can produce quality AM sound
comparable to FM stereo. AMAX@ reduces noise without reducing the
high frequencies you need for the best sound. ,In addition to improved
sound quality,
A M A X @
includes more stations on the AM band. You
don't have to do anything in
your radio because AMAX@ is automatic.
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*Dolby@ is a registered trademark of Dolby Laboratories.
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