SPECIFICATIONS

RECEIVER

Circuit type

 

 

 

 

 

 

Quadruple conversion superheterodyne

 

 

 

 

 

 

 

 

 

Frequency range

 

 

 

 

 

100 kHz ~ 30 MHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Intermediate frequency

 

1st: 73.05 MHz; 2nd: 8.83 MHz;

 

 

3rd: 455 kHz; 4th: 11.3 kHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100 kHz ~ 500 kHz

1 µV or less

 

 

 

SSB, CW, FSK

 

500 kHz ~ 1.626MHz

4 µV or less

 

 

 

(at 10 dB (S+N)/N)

 

1.626MHz ~ 24.5 MHz

0.2 µV or less

 

Sensitivity

 

 

 

 

 

24.5 MHz ~ 30 MHz

0.13 µV or less

 

 

 

 

 

 

100 kHz ~ 500 kHz

2 µV or less

 

 

 

 

 

 

 

 

 

 

 

 

AM

 

500 kHz ~ 1.626MHz

31.6 µV or less

 

 

 

(at 10 dB (S+N)/N)

 

 

6

2 µV or less

 

 

 

 

 

 

 

 

1.62 MHz ~ 24.5 MHz

 

 

 

 

 

 

 

 

24.5 MHz ~ 30 MHz

2 µV or less

 

 

 

FM (at 12 dB SINAD)

 

28 MHz ~ 30 MHz

0.25 µV or less

 

 

 

SSB

Lo: 300 Hz, Hi: 2600 Hz

–6 dB: 2.3 kHz, –60 dB: 3.3 kHz

 

 

 

CW

Width: 200 Hz

 

–6 dB: 200 Hz, –60 dB: 450 Hz

 

Selectivity

 

 

 

 

 

 

 

FSK

Width: 500 Hz

 

–6 dB: 500 Hz, –60 dB: 1000 Hz

 

 

 

 

 

 

 

 

 

AM

Lo: 100 Hz, Hi: 4000 Hz

–6 dB: 9 kHz, –60 dB: 12 kHz

 

 

 

 

 

 

 

 

 

 

FM

Width: 14 kHz

 

–6 dB: 14 kHz, –60 dB: 18 kHz

 

 

 

 

 

 

 

 

Image rejection (1.8 MHz ~ 30 MHz)

80 dB or more

 

 

 

 

 

 

 

 

1st IF rejection (1.8 MHz ~ 30 MHz)

80 dB or more

 

 

 

 

 

 

 

 

 

Notch filter attenuation

 

40 dB or more

 

 

 

 

 

 

 

 

RIT shift frequency range

 

±9.99 kHz

 

 

 

 

 

 

 

 

 

 

 

 

 

SSB, CW,

 

 

 

100 kHz ~ 500 kHz

2 µV or less

 

Squelch

 

6

20 µV or less

 

 

FSK, AM

 

 

 

500 kHz ~ 1.62 MHz

 

sensitivity

 

 

1.626MHz ~ 30 MHz

2 µV or less

 

 

 

 

 

 

 

 

 

 

FM

 

28 ~ 30 MHz

0.25 µV or less

 

Audio output (8 , 10% distortion)

1.5 W or more

 

 

 

 

 

 

Audio output impedance

 

8

 

 

 

 

 

 

 

 

 

 

61.705 MHz: Canada, U.S.A.

Specifications are subject to change without notice or obligation due to ongoing technological developments.

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Kenwood TS-870S instruction manual Specifications, Fsk, Am

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.