Page 90
FT-450D O
PERATION
M
ANUAL
I
NSTALLATION
OF
O
PTIONAL
A
CCESSORIES
A
UTOMATIC
-M
ATCHING
200-M
EMORY
A
NTENNA
T
UNER
FC-40 O
PERATION
The
FC-40
makes use of the control circuitry built into the transceiver, which allows the operator to control and
monitor automatic operation of the
FC-40
, which mounts near the antenna feedpoint. The
FC-40
uses specially
selected, thermally-stable components, and is housed in a waterproof case to withstand severe environmental
conditions with high reliability.
A carefully-chosen combination of solid-state switching components and high-speed relays allows the
FC-40
to
match a wide variety of antennas to within a 2:1 SWR on any amateur band frequency (160 through 6 meters),
typically in less than eight seconds. Transmitter power required for matching may be as little as 4 - 60 Watts, and
matching settings are automatically stored in memory for instant recall when the same frequency range is
selected later.
Please see the manual of FC-40 for detailed information.
Interconnections to FT-450D
After mounting the
FC-40
, connect the cables from the tuner to the
ANT
and
TUNER
jacks on the rear panel of
the
FT-450D
Transceiver.
Installation
The optional
FC-40
Automatic Antenna Tuner provides automatic tuning of a coaxial line so as to present a
nominal 50-ohm impedance to the
FT-450D
’s, HF/50 MHz antenna port.
Before operation can begin, you must instruct the
FT-450D
’s microprocessor that the
FC-40
is being used. This
is done using the Menu Mode:
1. Press and hold the [
F
] button for one second to
enter the Menu Mode.
The “
” icon will appear in the display.
2. Rotate the [
DSP/SEL
] knob to select the Menu
Item “
TUNER
.”
3. Press the [
DSP/SEL
] knob to enable this selected
Menu Item.
4. Rotate the [
DSP/SEL
] knob to change the setting
to “
EXT ATU
.”
5. Press and hold the [
F
] button for one second to
return to normal operation.
[
DSP/SEL
] Knob
[
F
] button
INPUT
DC 13.8V
22A
ANT
GND
EXT
SPKR
CAT
LINEAR
TUNER
DATA
Instal supplied ferrite
core as close to con-
nector as possible.
Control Cable (5 m)
Coaxial Cable (5 m)
Antenna Terminal
GND
Wrap the ends of the wa-
terproof cap with supplied
sealing tape to protect
against moisture ingress.
FT-450D
FC-40
