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Page 88 FT-450 OPERATION MANUAL
I
NSTALLATION
OF
O
PTIONAL
A
CCESSORIES
9. Turn the FT-450 over to access the topside. Con-
nect the TMP plug (marked green) from the ATU-
450 to J5402 on the MAIN Unit and connect the
other TMP plug (marked gray) from the ATU-450
to J5404 on the MAIN Unit. Secure the two co-
axial cables with the lead clamper.
AUTOMATIC ANTENNA TUNER ATU-450 OPERATION
10.Replace the Bottom case and Top case with 16
screws.
11.Connect the DC cable to the ~DC IN jack on the
rear panel of the FT-450. Turn on the External DC
Power Supply’s POWER switch, and then turn on
the FT-450s POWER by pressing and holding the
[
POWER
(
ON/OFF
)]
switch for one second.
TMP plug
(marked green)
TMP plug
(marked gray)
Clump
12.Press and hold the
[
F
]
button for one second to
enter the Menu Mode.
The “ ” icon will appear in the display.
13.Rotate the
[
DSP/SEL
]
knob to select the Menu
Item “TUNER”.
14.Press the
[
DSP/SEL
]
knob to enable this selected
Menu Item.
15.Rotate the
[
DSP/SEL
]
knob to select the desired
ATU mode.
INT ATU: Passes only the transmitted signal
through the ATU-450.
INTRATU: Passes both transmit and receive sig-
nals through the ATU-450.
[
F
]
button
[
DSP/SEL
]
knob
16.Press the
[
DSP/SEL
]
knob to save the new set-
ting.
17.Press and hold the
[
F
]
button for one second to
return to normal operation.
The installation and antenna tuner setting is now com-
pleted.
Operation
1. Press the
[
TUNE
]
button briefly to activate the
Automatic Antenna Tuner.
The “ ” icon will appear in the display.
If the transceiver frequency is out of the amateur
band, the “ ” icon will not appear.
2. Press and hold the
[
TUNE
]
button for one second
to begin automatic tuning. The transmitter will be
engaged, and the “ ” icon will blink while tun-
ing is in progress.
3. Tuning will stop automatically when a low SWR is
achieved. You may Press and hold the
[
TUNE
]
button for one second while tuning is in progress,
to cancel the automatic tuning.
4. To disable the Automatic Antenna Tuner, press
the
[
TUNE
]
button briefly again.
[
TUNE
]
button
90


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