Selecting A Channel; Selectinga Mode; Transmitting; Changing Transmit Power - Kenwood TRC-80 Instruction Manual

SELECTING A CHANNEL
Turn the CHANNEL selector to choose a channel.
.
When using the microphone supplied with the
optional KPE-1 Selective Call Unit, you can press
Microphone [UP] or Microphone [DWN] to choose
channels. Holding either button down sequentially
switches through all channels.
SELECTING
A MODE
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The [MODE] button must be activated by your
Dealer to function as described here. ...
The mode stored with each channel can be temporarily
changed. To change the operating mode, press
[MODE]. Each time this button is pressed, the mode
changes in a cyclical manner as shown below:
[ USB
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LSBi
cw
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AM~
To select Data mode, press [DATA] while in USB or
LSB mode. The Dealer sets either AFSK or FSK
operation for use in Data mode. If AFSK has been set,
then "USB" or "LSB" plus "DATA" appear. When FSK
has been set, only "DATA" appears.
...
KENWOOD
Pressing [MODE], pressing [DATA], or changing the
channel after entering Data mode cancels Data mode.
TRANSMITTING
The cooling fan operates automatically when long
transmissions are made or after extended operation in
the High power mode. Also, the Rear Panel heat sink
temperature will increase. The protection circuit in the
radiotelephone activates if the temperature rises over
the design limit. In this case, the output power is
automatically reduced to the Low position. Although the
"L" indicator does not appear, the power meter
indication will be less than full scale, and "THERMAL
PROTECTION" appears.
You cannot transmit on a channel that has only a
receive frequency stored. Attempting this causes
"RX ONLY" to appear.
8
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Changing T ransmit P ower
You can change the default transmit power setting
stored for a channel by accessing the Menu mode.
Refer to Menu Setup on page 10 for details.
However, you cannot change the transmit power
beyond the limits specified by the Dealer.
.
Voice Modes
1 Select a voice mode (USB, LSB, AM) channel.
2 Pressand hold down the PTT switch.
. "TX" appears.
iD
S 1 3 5 7 9
20 40 dB
RF
10
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Referto "VOX" below for informationon
automatic TXJRX switching.
3 Speak into the microphone holding it about
5 cm (2 in.) from your mouth for best results.
Speak in a normal tone and level of voice.
4 When you have finished transmitting, release the
PTT switch to return to the receive mode.
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The "TX" indicator disappears.
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VOX
(Voice-operated Transmit)
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VOX must be activated by the Dealer before you
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can use this function.
VOX eliminates the necessity of manually switching
to the transmit mode each time that you transmit.
The radiotelephone automatically switches to
transmit when the VOX circuitry senses that you
have begun speaking into the microphone.
The VOX function has three adjustments on the
Rear Panel as follows:
VOX control
Adjust this control to set the VOX amplifier sensitivity
to the correct level for your voice. When set
correctly, the radiotelephone changes to the transmit
mode immediately after you begin speaking into the
microphone.
ANTI control
VOX operation is sometimes difficult when using
high speaker volumes. Adjust this control to reduce
the tendency of the radiotelephone to switch into
transmit mode due to the speaker output. Use the
minimum ANTI control settings to achieve reliable
VOX operation.
DELAY control
Adjust this control to change the amount of time that
the radiotelephone remains in the transmit mode
after you stop speaking.
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