Turning The Key Tone On And Off; Using The Display/Key Backlight - Grecom PSR-300 Owner's Manual

Press FUNC and then ATT to set the attenuator to its global mode. Global ATT.
appears for 2 seconds at the bottom line and G appears. Press ATT to turn the
attenuator on or off. When attenuator is off while global attenuator mode, A
appears on the display.
Press FUNC and then ATT again to turn off the global attenuation mode. Nor-
mal ATT. appears on the bottom line for about 2 seconds, then G disappears.
Notes:
• Default setting of this scanner's attenuator is global mode and it is set to off.
• If you turn on the attenuator, the scanner might not receive weak signals.

Turning the Key Tone On and Off

Each time you press any of the scanner's key's, the scanner sounds a tone. To
turn the scanner's key tone off or on:
1. If the scanner is on, turn OFF/VOL counterclockwise until it clicks to turn the
scanner off.
2. Turn OFF/VOL clockwise to turn the scanner on. Welcome to Scanning
Receiver appears.
3. While Welcome message appears, press 1 to turn on the key tone or 2 to
turn it off.

Using the Display/key Backlight

Your PSR-300 features a backlit keypad and display for easy viewing and use
in dark environments. There are three backlight modes you can choose from
to control backlight activation, Normal mode, Keypress mode, and first keypress
Ignore mode.
With Normal mode, simply press
activate and remain on for the factory default setting of 5 seconds. The back-
light continues to remain on while you are operating the keypad. To turn off the
backlight before it automatically turns off, press
With Keypress mode, the backlight will light automatically when you press any
key on the keypad, and function as described above in Normal mode. This
mode is useful if you want the backlight to come on automatically when you
perform an operation using the keypad.
With Ignore mode, the backlight functions as described in Keypress mode,
except that the scanner ignores the first keypress. This mode is useful when
you wish to quickly illuminate the display and keypad without having to search
of the key. The first keypress is ignored, and the scanner sounds the low
pitched error beep to remind you that the first key pressed to activate the back-
light is ignored by the scanner.
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to activate the backlight. The backlight will
again.