Transmitting; Vox; Cw Keying; Hanging The - Kenwood TK-90 Instruction Manual

TRANSMITTING

Note: You cannot transmit on channels that have only a receive
frequency stored.
1 Select the desired channel or frequency.
2 Press microphone PTT switch and speak into the
microphone. Release the PTT switch to receive.
• For best sound quality at the receiving station, hold
the microphone approximately 3 ~ 4 cm (1.5 inches)
from your mouth.
VOX (V -O T
OICE PERATED
VOX eliminates the need of manually switching to
transmit mode each time you want to make a call.
The transceiver automatically switches to transmit
when the VOX feature senses that you have begun
speaking into the microphone.
• When VOX is activated, the VOX icon
( ) appears on the display.
To properly use the VOX feature, you must properly
set up the VOX Gain, VOX Anti-Gain, and VOX Delay
Time for your environment {page 17}.
CW K
EYING
1 Select a CW channel.
2 With a CW key connected to the transceiver, begin
transmitting by keying.
• In order to use CW keying, your dealer must have
enabled the CW break-in function on your
transceiver. The default setting for CW break-in is
disabled.
• When CW break-in is enabled, pressing the PTT
switch will not allow transmission. When CW
break-in is disabled, pressing the PTT switch will
allow transmission.
3 To end the transmission, stop keying.
• After keying has stopped, the transceiver will remain
in transmit mode momentarily before returning to
receive mode.
)
RANSMISSION
C T

HANGING THE

RANSMIT
If your call is too weak (or is using unnecessarily high
power), you can adjust the transmit power for your
channel/frequency.
1 Press the key programmed as Transmit Power.
2 Continuously press the Transmit Power key to
cycle through the various power settings as
displayed below:
High Medium
• Your dealer may have set a power limit on some
channels. In this case, the settings available may be
limited. Additionally, if a channel is set up as
receive-only, you will be unable to set a transmit
power for that channel.
• When using Low power, "L" appears on the display.
When using Medium-Low power, "ML" appears on
the display. When using Medium power, "M" appears
on the display. When using High power, no icon
appears on the display.
T - T
IME OUT IMER
If you continuously transmit for a period of time that
exceeds the programmed time set by your dealer (default
is OFF), the transceiver will stop transmitting and an alert
tone will sound. To stop the tone, return the transceiver to
receive mode.
Your dealer can program the TOT time in the range of 3 to
30 minutes.
O
VERHEATING
The internal fan operates automatically to keep the
transceiver cool, especially during extended
transmissions and extended operation using high
power. However, if the temperature rises too high, an
internal protection circuit will activate, reducing the
transceiver power.
• "HIGH–TEMP" appears on the display.
Note: When "HIGH–TEMP" appears on the display, ensure that
the transceiver cooling fan is functioning.
P

OWER

Medium-Low Low
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