2 INSTALLATION

ACCESSORY CONNECTIONS

FRONT PANEL

Headphones (PHONES)

Use headphones having 4 to 32 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

Headphones

S

60

M.CH

RIT

XIT

WIDTH SHIFT

between 250 and 600 . 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.

TS-870S

MICq

PTTw

DOWNe

UPr

iGND(STBY)

uGND(MIC)

yNC

t8 V(10 mA max)

REAR PANEL

External Speaker (EXT SP)

Ensure any external speaker used has an impedance of 8 . 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 itÕs unnecessary to connect both a paddle and another type of key unless you specifically want to use a keyboard for CW. ItÕs recommended that you become familiar with the internal keyer by reading ÒELECTRONIC KEYERÓ {page 32} before making your decision.

Microphone

MIC connector (Front view)

External speaker

TS-870S

Ground +

Ground Dash Dot

Straight key

Paddle

Bug

 

Electronic keyer

 

MCP CW output

 

4

Page 10
Image 10
Kenwood TS-870S instruction manual Accessory Connections, Front Panel, Rear Panel

TS-870S specifications

The Kenwood TS-870S is a distinguished transceiver that stands out in the world of amateur radio, particularly for enthusiasts who seek a blend of advanced technology and user-friendly features. Introduced in the early 1990s, this HF transceiver quickly gained a reputation for its exceptional performance, versatility, and reliability, making it a favorite among operators worldwide.

One of the most noteworthy features of the TS-870S is its direct-sampling technology, which allows for superior signal fidelity and processing. This technology enables the transceiver to operate across a range of 160 meters to 10 meters, catering to both casual and serious operators. Its high-performance 16-bit digital signal processing (DSP) facilitates effective noise reduction and filtering capabilities, enhancing the overall clarity during transmission and reception.

In terms of power, the TS-870S boasts an output of 100 watts, providing ample power for various communication needs. The transceiver is equipped with an automatic antenna tuner, which simplifies the task of matching the antenna to the operating frequency, ensuring optimal performance without the hassle of manual adjustments.

Another significant aspect of the Kenwood TS-870S is its user interface, featuring a large, easy-to-read display, and a logically arranged control layout. This makes it accessible for both novice and experienced operators. The built-in memories allow for quick storage and access to favorite frequencies and settings, enhancing operational efficiency.

The Kenwood TS-870S also includes various advanced features such as an optional 2.4 kHz and 6 kHz roofing filter which provides improved performance in crowded band conditions. The receiver's dual VFOs (Variable Frequency Oscillators) enable simultaneous monitoring of two frequencies, which is particularly useful for operators who need to keep track of multiple signals or engage in cross-band communication.

Apart from its technical specifications, the TS-870S is constructed with durability in mind, ensuring that it can withstand the rigors of frequent use. It supports various operating modes, including SSB, CW, AM, and FM, making it a versatile choice for diverse amateur radio activities.

In conclusion, the Kenwood TS-870S combines advanced technology with user-friendly characteristics, offering amateur radio operators an exceptional tool for communication. With its innovative features, robust performance, and flexibility, it continues to be a respected choice among radio enthusiasts, solidifying its legacy in the realm of amateur radio.