Page 11
FT-450 O
PERATION
M
ANUAL
I
NSTALLATION
C
ONNECTION
OF
A
NTENNA
AND
P
OWER
S
UPPLY
The
FT-450
is designed for use with any antenna system providing a 50 Ohm resistive impedance at the desired
operating frequency. Every effort should be made to ensure the impedance of the antenna system is as close as
possible to the specified 50-Ohm value. Note that the “G5RV” type antenna does not provide 50-Ohm imped-
ance on all HF Amateur bands, and an external wide-range antenna coupler must be used with this antenna
type.
Any antenna to be used with the
FT-450
must, ultimately, be fed with 50 Ohm coaxial cable. Therefore, when
using a “balanced” antenna such as a dipole, remember that a balun or other matching/balancing device must
be used to ensure proper antenna performance.
1/16''
3/4''
1 1/8''
3/4''
Adapter
1/8''
5/8''
3/8''
T
YPICAL
PL-259 I
NSTALLATION
A
BOUT
C
OAXIAL
C
ABLE
Use high-quality 50-Ohm coaxial cable for the lead-in to your
FT-450
transceiver. All efforts at providing an
efficient antenna system will be wasted if poor quality, lossy coaxial cable is used. This transceiver utilizes
standard “M” (“PL-259”) type connector.
AC Power Supply
FT-450
C
AUTION
Permanent damage can result if improper supply
voltage, or reverse-polarity voltage, is applied to
the
FT-450
. The Limited Warranty on this trans-
ceiver does not cover damage caused by applica-
tion of AC voltage, reversed polarity DC, or DC volt-
age outside the specified range of 13.8V ±10%.
When replacing fuses, be certain to use a fuse of
the proper rating. The
FT-450
requires a 25A fast-
blow fuse.
INPUT
DC 13.8V
22A
ANT
GND
EXT
SPKR
CAT
LINEAR
TUNER
DATA
A
N
TE
N
N
A
A
0
5
20 30 40
POWER
ON
OFF
RED
BLACK
FUSE: 25A
V
0
5
10
15 20
