Kenwood TS-870S User Manual - Page 10

Accessory Connections

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2 INSTALLATION ACCESSORY CONNECTIONS FRONT PANEL ■ Headphones (PHONES) Use headphones having 4 to 32 Ω impedance. You can also use stereo headphones. When headphones are used, no sound is heard from the internal (or optional external) speaker. Use a 6.0 mm (1/4") diameter, 2-conductor (mono) or 3-conductor (stereo) plug. ■ Microphone (MIC) To communicate in the voice modes, connect to the MIC connector a microphone having an impedance between 250 Ω and 600 Ω. Insert the connector from your microphone fully, then screw the retaining ring clockwise until snug. Compatible microphones include the MC-43S, MC-60A, MC-80, MC-85, and MC-90. Do not use the MC-44, MC-44DM, MC-45, MC-45E, MC-45DM, or MC-45DME microphone. REAR PANEL ■ External Speaker (EXT SP) Ensure any external speaker used has an impedance of 8 Ω. Use a 3.5 mm (1/8") diameter, 2-conductor (mono) plug. When an external speaker is used, no sound is heard from the internal speaker. WARNING! Do not connect headphones to this jack. The high audio output at this jack could damage your hearing. ■ Keys and Keyboards for CW Operation (PADDLE and KEY) For CW operation using the internal electronic keyer, connect a keyer paddle to the PADDLE jack. For CW operation without using the internal electronic keyer, connect a straight key, semi-automatic key (bug), electronic keyer, or the CW keyed output from a Multimode Communications Processor (MCP) to the KEY jack. The jacks mate with a 6.0 mm (1/4") 3-conductor plug and a 3.5 mm (1/8") 2-conductor plug respectively. External electronic keyers or MCPs must use positive keying to be compatible with this transceiver. Use a shielded cable between the key and the transceiver. Note: Due to the full-featured functionality of the internal electronic keyer, you may decide it's unnecessary to connect both a paddle and another type of key unless you specifically want to use a keyboard for CW. It's recommended that you become familiar with the internal keyer by reading "ELECTRONIC KEYER" {page 32} before making your decision. Headphones S 1 PWR 0 SWR COMP 1 3579 20 10 25 50 FILTER ALC 1.5 10 2 3 20 40 100 60 dB W dB VOX FULL M. CH SEMI AIP AGC AUTO PROC MONI MENU A B SPLIT RIT TONE XIT NB WIDTH CTRL SHIFT AUTO LSB USB CW R FSK FM AM M. SCR PRG SCAN F. LOCK FINE MHz TS-870S MICq PTTw DOWNe UPr iGND(STBY) uGND(MIC) yNC t8 V(10 mA max) Microphone MIC connector (Front view) External speaker TS-870S Ground + Ground Dash Dot ɾStraight key ɾBug ɾElectronic keyer ɾMCP CW output ɾPaddle 4

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4
2
INSTALLATION
ACCESSORY CONNECTIONS
FRONT PANEL
■
Headphones (PHONES)
Use headphones having 4 to 32
Ω
impedance.
You
can also use stereo headphones.
When
headphones are used, no sound is heard from the
internal (or optional external) speaker.
Use a 6.0 mm
(1/4") diameter, 2-conductor (mono) or 3-conductor
(stereo) plug.
■
Microphone (MIC)
To communicate in the voice modes, connect to the
MIC connector a microphone having an impedance
between 250
Ω
and 600
Ω
.
Insert the connector
from your microphone fully, then screw the retaining
ring clockwise until snug.
Compatible microphones
include the MC-43S, MC-60A, MC-80, MC-85, and
MC-90.
Do not use the MC-44, MC-44DM, MC-45,
MC-45E, MC-45DM, or MC-45DME microphone.
REAR PANEL
■
External Speaker (EXT SP)
Ensure any external speaker used has an
impedance of 8
Ω
.
Use a 3.5 mm (1/8") diameter,
2-conductor (mono) plug.
When an external speaker
is used, no sound is heard from the internal speaker.
WARNING!
Do not connect headphones to this jack.
The high
audio output at this jack could damage your hearing.
■
Keys and Keyboards for CW Operation
(PADDLE and KEY)
For CW operation using the internal electronic keyer,
connect a keyer paddle to the PADDLE jack.
For
CW operation without using the internal electronic
keyer, connect a straight key, semi-automatic key
(bug), electronic keyer, or the CW keyed output from
a Multimode Communications Processor (MCP) to
the KEY jack.
The jacks mate with a 6.0 mm (1/4")
3-conductor plug and a 3.5 mm (1/8") 2-conductor
plug respectively.
External electronic keyers or
MCPs must use positive keying to be compatible
with this transceiver.
Use a shielded cable between
the key and the transceiver.
Note:
Due to the full-featured functionality of the internal
electronic keyer, you may decide it’s unnecessary to connect
both a paddle and another type of key unless you specifically
want to use a keyboard for CW.
It’s recommended that you
become familiar with the internal keyer by reading
“ELECTRONIC KEYER” {page 32} before making your decision.
RIT
XIT
WIDTH
SHIFT
TS-870S
Headphones
Microphone
i
GND(STBY)
MIC
q
u
GND(MIC)
y
NC
t
8 V(10 mA max)
PTT
w
DOWN
e
UP
r
MIC connector (Front view)
External speaker
TS-870S
・
Paddle
・
Straight key
・
Bug
・
Electronic keyer
・
MCP CW output
Ground
+
Ground Dash Dot