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2.
2-1. PRECAUTION
1. A void direct sunlight, and select a dry, well venti-
lated location.
2. Since the heat sink is on the rear panel, avoid plac-
ing the equipment with the bottom and rear sides
close to a wall or desk.
3. When installing the equipment in an automobile, en-
sure adequate ventilation. Install the equipment in
a location where the rear does not make direct con-
tact with the seat, and is not directly exposed to
vibration.
4. A void installing the equipment in front of the car
heater air outlet.
5. The standard operating voltage of the equipment
is 13.8 V. Do not operate below 12 V or over 16 V.
2-2. FIXED STATION
2-2-1. Interconnection
The TS-440S requires more than 18A at 13.8 VDC
when transmitting at full power. Use the PS-50 or
PS-430 power supply for fixed stations.
Note:
The PS-50 base station supply is needed for continu-
ous transmission operation.
The transceiver can be elevated for operating con-
venience.
C .
autlon:
Do not use the bail to carry the transceiver.
Key
~:~~~~~~.:::~::::~ S -4 4 ~ S
~
PS-50
PS-430
SP-430
~-~
-=
To AC outlet
/ Ground
To antenna
2-2-2. Grounding
Caution:
Never use a gas pipe or electrical conduit pipe.
OK
Notes: -
1. A ground connection that is a 1/4 wavelength or
its multiple may provide a good DC ground, but it
will not provide a good RF ground.
2. A city water pipe cannot be used as a good earth
in some cases.
Making a good earth connection is important for
preventing dangers such as electric shock and for emit-
ting a high quality signal with minimum spurious radi-
ation. Bury a commercially available ground rod or
copper plate under the ground and connect it to the
GND terminal of the TS-440S. A thick wire, cut as
short as possible, should be used for the connection.
To make a good earth connection, connect the GND
terminal to a grounded metal water pipe.
GAS
4