Kenwood TH-42A - Manual (Page 67)

CaH channel
A frequency intended for establishing contact with other
stations. A transceiver key is dedicated to the Call
channel so the frequency can be recalled quickly.
Call/Memory Scan
A scan function that allows alternate monitoring of the
Call channel and the current memory channel. The
current memory channel is the memory channel selected
or used last. See "Scan".
CallA/FO Scan
A scan function that allows alternate monitoring of the
Call channel and the current VFO frequency. The
current VFO frequency is the frequency selected or used
last while in VFO mode. See "Scan".
Channel Display
A function that shows only the memory channel number
on the display instead of both the frequency and the
memory channel number.
CO (Carrier-operated) Scan
When scanning, Scan stops at all carriers received and
resumes 2 seconds after the carrier stops.
CTCSS (Continuous Tone Coded Squelch System)
Also referred to as Tone Squelch. A method of receiver
squelch control that uses a subaudible tone
superimposed by the transmitter on the transmitted
signal. Only signals received with a subaudible tone that
matches the tone selected at the receiver can open the
receiver squelch.
CTCSS frequency
The subaudible frequencies used by CTCSS.
Default settings
The values selected for VFO frequency, Call channel
frequency, frequency step, etc. by the transceiver after it
is reset- All transceivers are shipped from the factory
with default settings.
DTMF (Dual Tone Multi-Frequency) signal
A signal created by combining two discrete audio
frequencies. Generally used for sending digits for
repeater control or Autopatch applications.
DTMF Transmit Hold
A function that keeps the transmitter keyed while DTMF
signals are sent. The function eliminates the need to
hold PTT while pressing individual keys to send the
DTMF signals.
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