Page 95
FT-450 O
PERATION
M
ANUAL
I
NSTALLATION
OF
O
PTIONAL
A
CCESSORIES
A
CTIVE
-T
UNING
A
NTENNA
S
YSTEM
(
ATAS-100/-120/120A
)
O
PERATION
M
ANUAL
T
UNING
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.
If the antenna SWR is High (more than 1:2.0), the
“
” icon will blink.
2. Press and hold in the microphone
PTT
switch.
With the transceiver in the “transmit” mode, press
and hold in the [
BAND
] button (to raise the an-
tenna) or the [
BAND
] button (to lower the an-
tenna). While you hold in one of these keys, the
FT-450
will generate a carrier, and you may watch
the SWR meter of the
FT-450
, looking for the
meter indication to reach its minimum value. When
this is reached, release the [
BAND
] or [
BAND
]
key, then release the
PTT
key to return to the “re-
ceive” mode.
[
TUNE
] button
AT
A
S
-1
20
A
FT-450
INPUT
DC 13.8V
22A
ANT
GND
EXT
SPKR
CAT
LINEAR
TUNER
DATA
Market on the mount
After-market mount
