Whistler 338Ru User Manual download pdf (Page 9)

OPERATION

1 = weak signal, 9 = strong signal

City/City 1/City 2 Modes

Whistler’s City Modes are designed to reduce the annoyance

of automatic door openers, intrusion alarms and other devices

which share frequencies with police radar. Generally, X band is

used for these devices.

• Press City to cancel Highway Mode and engage City

Mode. The display will switch from“H” to “C”.

• Press City again to enter City 1 Mode.

• Press City again to enter City 2 Mode.

The City 1 or City 2 numeric indicator only illuminated

briefly.

• Press City a fourth time to cancel City 2 Mode and

returns the unit to Highway Mode.

In City Mode, weak radar signals give an initial alarm of two

beeps, and then remain quiet until the signal becomes very

strong. When the signal strength increases, two additional

beeps are provided. City 1 and City 2 Modes operate the same

as Highway Mode, but in City 1 Mode, only the X band is

lowered. In City 2 Mode, X-band is not

detected.

Caution: Some towns/small cities may still be using X band

radar. City Modes do not change the audio alert for laser.

Highway Mode

Highway mode provides full audio warnings any time radar (X, K

and Ka) or laser signals are detected, and is recommended for

open road driving.

For more information on City and Highway modes, please visit

our FAQ page on our website: www.whistlergroup.com

Signal Strength Display

When a radar signal is detected the audio alerts have a geiger

counter-like pattern to help you determine the strength of the

radar source; the faster the beeping the stronger the radar

signal. At the same time the audio is reporting, the display

illuminates the band identification Icon and relative signal

strength from 1 to 9.

Alert Periscopes

Whistler’s Alert Periscopes provide an added attention getting

visual alert. The two extra LEDs flash on and off when the unit

alarms to provide a unique visual alert. This alert can be

programmed, through the Option Select Mode to:

1. flash for all alarms

2. remain on

3. turn LEDs off completely

338ruman-wo_tat.qxp 1/30/2012 11:06 AM Page 15

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Whistler 338Ru User Manual Page 9

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