Controls and indicators, Controls and indicators (see illustration below), Top view – Racing Electronics SC150 User Manual
Page 6: Front view
Controls and Indicators
Top View
Antenna
Connector
Connect the rubber antenna to this BNC
connector and turn clockwise until it locks.
Earphone
Jack
Plug the supplied earphone into this jack
for private listening. When the earphone is
connected, the internal speaker is
disconnected.
Note the warning on the Inside Front Cover
and on page 11.
SQUELCH
Control
Adjust this control to set the scan threshold
and to eliminate the background rushing
noise heard in the absence of an incoming
signal. See the Operation Overview
Section for adjustment procedures.
ON-OFF/
VOLUME
Control
Use this control to turn the scanner on or
off, and to adjust the volume.
Front View
(Refer to the foldout illustration inside the Back Cover)
Complete explanations of the use of these keys are in the
following Scanning and Searching Sections, beginning on page
1. LCD DISPLAY — The liquid crystal display (LCD)
shows the current channel and frequency. It also
displays the mode, status, and bank indicators.
A.
Priority Channel Indicator — P appears when
the scanner stops on a Priority Channel.
B.
Scan Type Indicator — Indicates BANK or
DIRECT Scan operation.
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Tue Dec 16 18:56:05 1997
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