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DTMF MICROPHONE PCM-499
Model PCM-499
is
a multi-function dynamic microphone with a 16-
key encoder provided as
a standard accessory.
The 16
amber
led-backlit keys offer driving safety while
accessing an autopatch at night.
(4)
DTMF KEY ENCODER PAD
(1)
Push-to-Talk(PTT)
Switch
To transmit,
press this
switch and
"TX"
will
appear on the LCD.
Speak
slowly and clearly in your normal
tone of voice with the microphone a
few inches away from your month.
If
the PTT
is used to stop scanning,
press
it again to
initiate
transmission.
(2)
UP/DOWN Buttons
They are practically the same
functions as the UP
and DOWN keys on
the front panel of the unit.
The
frequency can be advanced up or down
according to the preset
frequency
step.
Holding either one of buttons
for more than
a second allows
rapid
frequency change
for upward or
downward.
(3)
MAO CALL Button
This CALL button has the same
function as that of the MAO
key on
the front panel
key board.
By
depressing the button,
the
frequency
stored in MO memory on the bank A is
directly called up regardless of the
current operation mode of the unit.
Thus,
quick access to a channel
which may be
in
frequent use
can be
attained.
The transceiver
is put
into the transmission mode by pressing
the PTT
knob,
and speaking
into the microphone.
Release the PTT
knob after transmission.
To enable the DTMF encoder
function,
press and hold the PTT button while pressing the keypad buttons
in the desired sequence.
18
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