INSTALLATION

nstall and connect an antenna system {page 2}.

Install a ground system that satisfies DC and RF grounding requirements {page 3}.

Install lightning protection to protect the antenna system, your personal safety, and your property {page 3}.

Install and connect a DC power supply {page 3}.

Connect all accessories to the transceiver {page 4}. Accessories include the following:

¥

Microphone

¥

Headphones

¥

Antenna Tuner

¥

External Speaker

¥

CW Key

¥

RTTY Equipment

¥

Computer

¥

Linear Amplifier

¥TNC/ Multimode Communications Processor

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 antenna of good quality to let your transceiver perform at its best. Use a good-quality 50 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 transceiverÕs 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 transceiverÕs power. If you feel a tingle from the transceiverÕs cabinet or the microphoneÕs 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. The EXT RX ANT jack can be used to connect a separate receiver. Note that this jack must be enabled by Menu configuration {pages 24, 27} before it can be used.

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 LINE

¥Use only as a general guide. Specifications may vary between cable manufacturers.

Transmission Line

3.5 MHz

14 MHz

30 MHz

 

 

 

 

RG-174, -174A

2.3

4.3

6.4

 

 

 

 

RG-58A, -58C

0.75

1.6

2.6

 

 

 

 

3D-2V

0.80

1.5

2.3

 

 

 

 

RG-58, -58B

0.65

1.5

2.3

 

 

 

 

RG-58 Foam

0.70

1.4

2.1

 

 

 

 

RG-8X

0.50

1.0

2.0

5D-2V

0.45

0.93

1.4

 

 

 

 

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

0.38

0.80

1.2

-213, 214, 215

 

 

 

 

 

 

 

5D-FB

N/A

0.80

1.0

 

 

 

 

RG-8 Foam

0.29

0.60

0.90

 

 

 

 

8D-2V

0.29

0.60

0.90

 

 

 

 

10D-2V

0.24

0.50

0.72

 

 

 

 

9913

0.24

0.48

0.70

 

 

 

 

8D-FB

N/A

0.48

0.68

 

 

 

 

10D-FB

N/A

0.37

0.54

 

 

 

 

12D-FB

N/A

0.33

0.45

 

 

 

 

RG-17, -17A

0.13

0.29

0.48

 

 

 

 

1/2" Hardline

0.12

0.26

0.40

 

 

 

 

20D-2V

< 0.10

0.25

0.39

3/4" Hardline

< 0.10

0.21

0.32

 

 

 

 

7/8" Hardline

< 0.10

0.16

0.26

N/A: Not available

 

 

 

2

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Kenwood TS-870S instruction manual Installation, Antenna Connection, Transmission Line MHz 14 MHz 30 MHz

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.