15 CONNECTING PERIPHERAL EQUIPMENT

RTTY EQUIPMENT

Use the ACC 2 connector to connect to the RTTY equipment. Connect the RTTY key output line to pin 2 of the ACC 2 connector. Connect the demodulation input line of the RTTY equipment to pin 3 of the ACC 2 connector.

Note: Do not share a single power supply between the transceiver and the RTTY equipment. Keep as wide a separation as possible between the transceiver and the RTTY equipment as practical to reduce noise-pickup by the transceiver.

MCP

power supply

MCP

TS-570

ACC 2

 

Personal computer/ dumb terminal

LINEAR AMPLIFIER

Connect an external transmit power amplifier to the REMOTE connector. Before using the external amplifier, switch ON the linear amplifier control relay via Menu No. 39.

The TX/RX relay response time is 10 ms when you have selected CW Full Break-in and 25 ms when you have selected CW Semi Break-in.

Note: The TX/RX control method differs depending on external amplifier models. Some amplifiers enter the TX mode when the control terminal is grounded. For those amplifiers, connect pin 2 of the REMOTE connector to the GND terminal of the amplifier and connect pin 4 of the connector to the control terminal of the amplifier.

 

 

 

REMOTE connector

 

 

Pin

Function

 

Linear

No.

 

 

TS-570

amplifier

1

Speaker output

 

 

AC LINE

2

Common terminal

RF OUTPUT

3

Standby; when grounded, the

 

transceiver enters TX mode.

 

 

 

Control relay

4

When connected with the common

R

 

 

terminal, the amplifier enters TX mode.

T

2

5

When connected with the common

4

5

1

3

6

7

 

terminal, the amplifier enters RX mode.

GND

 

6

ALC input from amplifier

REMOTE Connector

7

Approx. +12 V DC is output when in

(Rear panel view)

 

TX mode (10 mA max.).

ANTENNA TUNER

Use the ANT 1 connector and the AT connector to connect an external antenna tuner. If you connect the external tuner to the ANT 2 connector, the external tuner will not function.

Note: While using an external antenna tuner with the TS-570S, you cannot use the 6 m band to transmit. Connect your 6 m band antenna to the ANT 2 connector.

External antenna tuner

TS-570

61

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Kenwood TS-570D instruction manual Rtty Equipment, Linear Amplifier, Antenna Tuner, Connecting Peripheral Equipment