Scanning Mode; Turn On Scanning; Continuous Tone Coded Squelch System (Ctcss); Use Of Ctcss - Quanzhou 9900 Operation Instructions Manual

Scanning
The "scanning" function is used to monitor the required frequency. Getting familiar with the
scanning function will greatly improve your operation efficiency.
This talkie walkie provides the following scanning modes.
1. VFO scanning: In the VFO frequency mode, it will scan the whole frequency band with step
frequency.
2. Channel scanning: In the memory channel mode, it will scan all channels stored in the
memory channels
The scanning may be made simultaneously at both the main and secondary frequency bands. Start
the scanning as follows:
1. Shortly press the left or right 【V/M】 to select the scanning mode.
2. Shortly press the left or right 【SCN】 to start scanning.
When a matched signal is detected, the talkie walkie will stay at the busy frequency or
memory channel till 8 seconds after the signal disappears and then continue to scan.
When the talkie walkie is in the scanning status,
1. Shortly press the tuning knob (DIAL) to stop scanning and keep the talkie walkie at the
current frequency or memory channel.

You may also press the 【PTT】key on the handheld microphone to stop scanning
and make conversation at the current frequency or memory channel.
2. Shortly press 【EXIT】to exit the scanning status and return to the frequency or memory
channel used before the scanning.
Note:

When the CTCSS or DCS is activated, the talkie walkie will stay at the busy frequency and
decode the CTCSS voice frequency or DCS codes. If the voice frequency or the codes are
matched, the squelch will be stopped. Otherwise, the talkie walkie will recover the scanning.

In scanning, you may rotate 【DIAL】 to change the scanning frequency direction.
 Adjust the squelch level before using the "scanning" function. Too low a squelch level may
lead to immediate stop of "scanning".

Continuous Tone Coded Squelch System (CTCSS)

Sometimes, you may need to listen to only the call from a certain person. Continuous Tone
Coded Squelch System (CTCSS) can make you ignore (cannot hear) the calls from other persons
using the same frequency. To use this function, please select the CTCSS voice frequency selected
by other persons of your group. CTCSS voice frequency cannot be heard. (Refer to the CTCSS
Voice Frequency List in the annex.)
Note: CTCSS does not guarantee your conversation privacy. It only makes you avoid irrelative
calls.

Use of CTCSS

 Receiving CTCSS
1. Select the required frequency band.
2. Shortly press the tuning knob (DIAL) to enter the context menu.
3. Rotate the tuning knob (DIAL) to select Item 01 on the context menu
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