Kenwood TS-440S manual Mobile, Antenna, Justment

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 150 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.

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

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: -

e mum

Fuse

Use short heavy leads.

..'" be as close to the battery

terminal as possible.

1.Do not install the TS-440S near the heater outlet.

2.Allow sufficient space behind the TS-440S to en- sure proper ventilation.