DTMF MICROPHONE499—21*
Model 499—21 in a Dynamic Microphone with 16 key encoder and multi function. This
microphone is provided as a standard accessory for U.S. version.
(1)To transmit, depress the Push—to—Talk
(PTT) switch and speak slowly and
clearly in your normal tone of voice
with the microphone about two inches
from your mouth. Depressing the PTT
switch turns the TX indicator light on the
LCD, indicating that the transmitter is in
operation.
(2)UP/DOWN Buttons
These UP and Down Buttons function in
The same way as those of (UP) and
(DOWN) keys on the keyboard of the
unit’s front panel. Holding either one
of the buttons for more Than a second
allows rapid frequency change.
(3)MA 0 CALL Button
This CALL button has also the same
function as that of MAO key on the
front panel keyboard. By depressing
the button, the frequency stored in
MO memory on the bank A is
directly called up regardless of current
operation mode of the unit. Thus quick
access to the channel, which may be
used frequently, can be attained.
(4) DTMF KEY ENCODER PAD
The transceiver is put into the transmission mode by pressing the PTT knob, and
you can speak into the microphone. Release the PTT knob after transmission.
To enable the DTMF encoder function, press the keypad keys correctly in the
desired sequence. As each button is pressed, the LED will be light.
The transceiver is automatically put into the transmission mode when any
keypad key is pressed. The built—in “hang timer” causes the transmitter to
operate continuously if the delay between keystrokes is less than 2 seconds.
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