Whistler 1605 - Manual (Page 12)

City Mode
Whistler’s City Mode is designed to reduce the annoyance of
automatic door openers, intrusion alarms and other devices
which share frequencies with police radar.
• Press City to engage City. Display reads:
• Pressing City a second time cancels City Mode.
In City Mode, weak speed/safety radar signals give an initial
alarm of two beeps, and then remains quiet unless the signal
becomes very strong. When the signal strength increases,
two additional beeps are provided.
Highway Mode
Highway mode provides full audio warnings any time radar (X,
K, Ka, Safety) signals are detected, and is recommended for
open road driving. Highway mode is automatically engaged
after the unit is turned on and completes the self-test.
OPERATION
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