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6.5.3. Tone Squelch (CTCSS)
Besides of the RF-level controlled Squelch and the ASQ, the
radio is also equipped with CTCSS. CTCSS adds an unhearable
tone to the transmission. If enabled, the squelch of a receiving
radio only opens, when it receives a transmission from a radio
with the same CTCSS setting. There are 38 different tones
available. The CTCSS can be set separately for each channel
and is only available in FM.
•
Select the desired channel with Rotary knob or UP/DOWN
•
Press FC + CTCSS / ASQ
•
With the Rotary knob or UP/DOWN key select the CTCSS
tone from 1 to 38 or "of" to disable CTCSS
•
Shortly press the PTT key
Advantage: allows selective reception of certain stations.
Disadvantage: all communication partners need radios with
CTCSS. Lower sensitivity and thus lower range compared to
ASQ
7. Operation for secondary functions / Function
Selector (FC)
The FC button also has a second function:
If you short press the FC button, you activate the second function
of each button, which is written above the keys.
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