Digital Coded Squelch (Dcs); Use Of Dcs - Quanzhou 9900 Operation Instructions Manual

4. Shortly press the tuning knob (DIAL) to set the current context menu.
5. Rotate the tuning knob (DIAL) or press 【UP】/【DOWN】 on the handheld microphone
to select OFF or required CTCSS frequency.
6. Shortly press the tuning knob (DIAL) to confirm the storage of the required value and
return to the context menu mode. Or shortly press 【EXIT】 to return to the context menu
mode without storage.
7. shortly press 【EXIT】 to exit the context menu mode.
 Transmission 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 06 on the context menu
4. Shortly press the tuning knob (DIAL) to set the current context menu.
5. Rotate the tuning knob (DIAL) or press 【UP】/【DOWN】 on the handheld microphone
to select OFF or required CTCSS frequency
6. Shortly press the tuning knob (DIAL) to confirm the storage of the required value and
return to the context menu mode. Or shortly press 【EXIT】 to return to the context menu
mode without storage.
7. shortly press 【EXIT】 to exit the context menu mode

Digital Coded Squelch (DCS)

The Digital Coded Squelch (DCS) is another way to make you ignore (cannot hear) the
irrelative calls of other persons using the same frequency. Its function is the same as that of
CTCSS. The only difference lies in the coding/decoding method and optional code quantity.
(Refer to the DCS Code List in the annex.)

Use of DCS

 Receiving DCS-N(DCS positive code)
1. Select the required frequency band.
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