Bedienungsanleitung Kenwood TS-570D (Seite 7 von 89) (Englisch)

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INSTALLATION

ANTENNA CONNECTION

The type of the antenna system, consisting of the

antenna, ground, and feed line, will greatly affect the

successful performance of the transceiver. Use a

properly adjusted 50 Ω antenna of good quality to let

your transceiver perform at its best. Use a good-quality

50 Ω coaxial cable and a first-quality connector for the

connection. Match the impedance of the coaxial cable

and antenna so that the SWR is 1.5:1 or less. All

connections must be clean and tight.

While the transceiver’s protection circuit will activate if

the SWR is greater than 2.5:1, do not rely on protection

to compensate for a poorly functioning antenna system.

High SWR will cause the transmit output to drop, and

may lead to radio frequency interference to consumer

products such as stereo receivers and televisions. You

may even interfere with your own transceiver. Reports

that your signal is garbled or distorted, especially at

peak modulation, may indicate that your antenna

system is not efficiently radiating the transceiver’s

power. If you feel a tingle from the transceiver’s cabinet

or the microphone’s metal fittings when you modulate,

you can be certain that, at the least, your coax

connector is loose at the rear of the radio and, at the

worst, your antenna system is not efficiently radiating

power.

Connect your antenna feed line to ANT1. If you are

using two antennas, connect the second antenna to

ANT2.

CAUTION:

◆

TRANSMITTING WITHOUT FIRST CONNECTING AN

ANTENNA OR OTHER MATCHED LOAD MAY DAMAGE THE

TRANSCEIVER. ALWAYS CONNECT THE ANTENNA TO THE

TRANSCEIVER BEFORE TRANSMITTING.

◆

USE A LIGHTNING ARRESTOR TO PREVENT FIRE,

ELECTRIC SHOCK, OR DAMAGE TO THE TRANSCEIVER.

APPROX. LOSS (dB) PER 30 METERS (100 FEET) OF

CORRECTLY MATCHED 50 Ω LINE

• Use only as a general guide. Specifications may vary

between cable manufacturers.

Connect all accessories to the transceiver {pages 3, 60}.

Accessories include the following:

• Microphone

• Antenna Tuner

• CW Key

• Computer

• TNC/ Multimode Communications

Processor

|nstall and connect an antenna system

{page 1}.

Install a ground system that satisfies DC

and RF grounding requirements {page 2}.

Install lightning protection to protect the

antenna system, your personal safety,

and your property {page 2}.

Install and connect a DC power supply {page 2}.

• Headphones

• External Speaker

• RTTY Equipment

• Linear Amplifier

6.4

2.6

2.3

2.1

2.0

1.4

1.2

1.0

0.90

0.72

0.70

0.68

0.54

0.45

0.48

0.40

0.39

0.32

0.26

4.3

1.6

1.5

1.4

1.0

0.93

0.80

0.60

0.50

0.48

0.37

0.33

0.29

0.26

0.25

0.21

0.16

2.3

0.75

0.80

0.65

0.70

0.50

0.45

0.38

N/A

0.29

0.24

N/A

0.13

0.12

< 0.10

RG-174, -174A

RG-58A, -58C

3D-2V

RG-58, -58B

RG-58 Foam

RG-8X

5D-2V

RG-8, -8A, -9, -9A, -9B,

-213, -214, -215

5D-FB

RG-8 Foam

8D-2V

10D-2V

9913

8D-FB

10D-FB

12D-FB

RG-17, -17A

1/2" Hardline

20D-2V

3/4" Hardline

7/8" Hardline

Transmission Line

3.5 MHz

14 MHz 30 MHz

N/A: Not available

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