Kenwood TS-870S instruction manual Rear Panel, t y u, i o !0, 1 !2, Getting Acquainted

3 GETTING ACQUAINTED

REAR PANEL

q

ANT 2

GND

EXT
RX ANT	IF OUT 1	REMOTE

w	e	r
ANT 1	DC 13.8V	AT
	20.5A

EXT SP				COM
8 Ω	ACC 2	KEY	PADDLE
				RT TY

t y u i o !0 !1 !2

qGND post with wing nut

Connect a heavy gauge wire or copper strap between the ground post and the nearest earth ground {page 3}. Do not connect the ground wire to either your house electrical wiring, or gas or water pipes. A well-grounded transceiver will reduce the risk of interference to television, broadcast radio receivers, and other electronic devices. A good ground can also reduce receiver noise caused by static discharges.

wANT 1 and ANT 2 connectors

Connect the feed lines from your antennas to these connectors. Refer to pages 2 and 63 for details.

ePower Input DC 13.8 V connector

Connect a 13.8 V DC power source {page 3}. Use the supplied cable with a regulated DC power supply. The TS-870S draws less than 20.5 A at maximum transmit output.

rAT connector

Mates with the connector on the cable supplied with the AT-300 antenna tuner. Refer to the instruction manual supplied with this tuner for more information.

tEXT RX ANT jack

Mates with an RCA pin plug for connecting a separate receiver. Menu No. 53 enables this jack. Never transmit into this jack. Signals received by the TS-870S are distributed via a power divider to the TS-870S receive stage and the external receiver. Therefore, connecting an external receiver reduces the signal level.

yIF OUT 1 jack

Mates with an RCA pin plug for connecting the

8.83MHz IF for pan display of an SM-230 Station Monitor {page 6}.

uREMOTE connector

iEXT SP jack

Mates with a 3.5 mm (1/8") diameter, 2-conductor (mono) plug for connecting an external speaker {page 4}. Connecting an external speaker cuts off the audio automatically to the internal speaker.

oACC 2 connector

Mates with a 13-pin male DIN connector for connecting various accessory equipment {page 6}.

!0PADDLE and KEY jacks

Mates with a 6.0 mm (1/4") 3-conductor plug and a

3.5mm (1/8") 2-conductor plug for connecting a key paddle for the internal electronic keyer and another key for CW operation respectively. Read “Keys and Keyboards for CW Operation” {page 4} before connecting to these jacks.

!1RTTY jack

Mates with an RCA pin plug for connecting the RTTY key output from RTTY equipment to operate true frequency shift keying (direct keying) {page 5}.

!2COM connector

Mates with a 9-pin female RS-232C connector for connecting a computer via one of its serial communication ports {page 83}. Functions on the transceiver can be controlled remotely by using a communications program on the computer {pages 5, 83}. Also used with the Quick Data Transfer function {page 65}.

Note: Before using the REMOTE, ACC 2, and COM connectors, remove the protective covers.

Mates with a 7-pin male DIN connector for connecting a linear amplifier {page 5}.

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