Basic Operations; Turn On/Off The Talkie Walkie; Volume Adjustment; Squelch Level Adjustment - Quanzhou 9900 Operation Instructions Manual

Vehicle-mounted walkie talkie
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Basic Operations

Turn On/Off the Talkie Walkie

1. To turn on the talkie walkie, press the right band (VOL) knob for 2 seconds.
When you turn on the talkie walkie, the startup information will appear on the
display screen for 2 seconds and the display screen will return to the normal display
of operation frequency.
2.
To turn off the talkie walkie, once again press the right band (VOL) knob for 2
seconds.

Volume Adjustment

The left band and right band volume adjustments are separate from each other. The left volume
knob (VOL) is for adjusting the left band volume and the right (VOL) is for adjusting the right
band volume.
Clockwise turn the volume knob will increase the volume of the selected band and
counterclockwise turn it will decrease the volume.

Squelch Level Adjustment

The left band and right band squelch adjustments are also separate from each other. The left
squelch knob (SQL) is for adjusting the left band squelch level and the right (SQL) is for adjusting
the right band squelch level as shown by the arrow in the figure below.
The squelch level function is used to close the speaker volume when there is no signal. If the
squelch level is correctly set, you will hear sound only when actually receiving signals. The higher
the squelch level, the stronger the signal strength for you to hear the sound will be.
Turn the (SQL) control bottom for the selected frequency band to just eliminate or reduce the
surrounding noise.

Selection of Frequency Band

In dual-receiving operation, the main band (transmissible band) is indicated by
.
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