Kenwood TS-440S - Manual (Page 5)

2-2-3. Antenna
Caution: -------------
Protect your equipment —Use a LIGHTNING AR­
RESTOR.
Any of the common antenna systems designed for use
on the high frequency amateur bands may be used with
the TS-440S provided the input impedance of the
transmission line is not outside the capability of the Au­
tomatic Antenna Tuner. The transmission line should
be coaxial cable. An antenna system which shows a
SWR (Standing Wave Ratio) of less than 1 . 5 : 1 when
using 50 ohm coaxial transmission line, or a system
that results in a transmission line input impedance that
is essentially resistive, and between 20 and 1 50 ohms
will take power from the transceiver through the AT
unit.
2-2-4. Key connection
Your key should be connected as illustrated in the
figure below. When using an electronic keyer, make
sure that polarity is set for positive. Always use shield­
ed line from the key to transceiver.
2-3-2. Power supply connection
Cautions: ---------------------------------------------------------------------
1. Turn POWER switch OFF before connecting/dis-
connecting the power cable.
2. Observe battery polarity.
DC power cable
Red and white -f-
Black and gray -
3. When charging your vehicle battery, or when jump-
starting a dead battery, ALWAYS disconnect the
power cable from the back of the transceiver, or
damage may result to the transceiver.
Connect the TS-440S power cable to the battery ter­
minals, with consideration to current requirements and
noise prevention. The maximum current drawn by the
TS-440S reaches between 18 and 20A when trans­
mitting. Therefore, the cable should be made as short
as possible, using the specified fuse. Also, confirm that
the power system of the car (including the battery and
generator or alternator) will handle the increased load
of the TS-440S.
12V Battery
Fuse should be as close to the battery
terminal as possible.
2-3. MOBILE
Being compact in design, this transceiver is ideal for
mobile operation. Satisfactory mobile operation is
achieved through proper power and antenna connec­
tion, and thoughtful transceiver installation and ad­
justment.
2-3-1. Mounting bracket installation
Secure the TS-440S under the dashboard using an op­
tional MB-430 mounting bracket. As an alternative, use
strapping, making sure that the TS-440S will not slip
out of place while operating the vehicle.
Notes: --------------------------------------------------------------------------
1. Do not install the TS-440S near the heater outlet.
2. Allow sufficient space behind the TS-440S to en­
sure proper ventilation.