4 OPERATING BASICS

Note: After recalling memory channel 99 that has Start and End frequencies stored {page 58}, the receive frequency can be changed (like a VFO) by using the Tuning control.

DIRECT FREQUENCY ENTRY

Entering a frequency directly from the numeric keypad can be the fastest method to change to a specific frequency that is far removed from your current frequency.

The following points will help you enter a frequency correctly:

¥Only the digits 0, 1, 2, or 3 can be entered for the

10 MHz digit (first digit). Pressing any digit 4 ~ 9 will cause the digit to be entered in the 1 MHz position. Therefore, to select a frequency of 3 MHz or lower, enter 0 for the 10 MHz digit.

¥When the 10 Hz digit (last digit) is entered, the digit 0 is entered automatically for the 1 Hz digit, and frequency entry is completed. The 1 Hz digit is not displayed.

¥If [ENTER] is pressed after beginning to enter digits, 0 is entered automatically for the remaining un-entered digits, and frequency entry is completed.

¥Attempting to enter a frequency that is outside the TS-870S frequency range causes an alarm to be generated. The entered frequency is rejected.

¥If an incorrect digit is pressed, restore the previous frequency by pressing [CLEAR], or [SEND], or Mic [PTT].

¥When an entered frequency is accepted, RIT {page 44} and XIT {page 45} are switched OFF, but the RIT or XIT frequency is not changed.

1

CH 1

6

M.IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

 

 

 

 

 

 

 

 

2

CH 2

7

M>VFO

 

 

 

 

S

 

60 dB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

VOX

FULL SEMI AIP

AGC AUTO PROC

 

 

 

 

 

 

 

 

 

 

ATT

 

PWR

100

M.CH

 

 

 

 

 

 

 

 

 

 

 

 

 

W

 

 

 

 

 

 

 

 

 

 

ANT

DOWN

UP

 

 

dB

AUTO LSB

USB CW R FSK FM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOX

FULL/SEMI

AIP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HF TRANSCEIVERTS-870

 

ON AIR

AT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<<< (9L) >>>

 

 

 

 

 

 

 

 

 

3

CH 3 8

SCAN

AT TUNE THRU/AUTO

METER

PROC

MONI

1

CH 1

6

M.IN

 

 

 

 

AGC

KEY SPEED PROC

MONI

 

 

 

 

ENTER

 

 

 

SEND

 

4

6

2

CH 2

7

M>VFO

 

 

 

 

 

 

 

 

2

8

3

CH 3

8

SCAN

 

 

 

 

 

PHONES

SLOW

FAST

 

 

 

 

 

 

4

CH 4 9

CLR

 

 

 

 

 

 

OFF

 

0

1 0

4

CH 4

9

CLR

 

 

 

 

 

MIC

CAR4

DELAY6

MIC4

PWR6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

REC

0 F.LOCK

2

8

2

8

QUICK MEMO

FINE

5

0

1 0

0

1 0

REC 0 F.LOCK

 

 

M.IN MR

 

 

 

 

 

 

 

 

1Press [ENTER].

¥ ÒÐ Ð . Ð Ð Ð . Ð ÐÓ appears.

AGC AUTO

USB

2Press the numeric buttons [0] ~ [9] to enter the frequency you desire.

¥The transceiver changes to the entered frequency after the 10 Hz digit is pressed.

Note: After recalling memory channel 99 that has Start and End frequencies stored {page 58}, the receive frequency can be changed by using Direct Frequency Entry. When using the keypad to directly enter a frequency, you can never enter a frequency outside the frequency range programmed in memory channel 99.

FRONT PANEL METER

The multifunction meter measures the parameters in the following table. Peak readings for the S-meter, ALC, SWR, COMP, and PWR functions are held for approximately 2.5 seconds if Menu No. 09 (P HOLD) is ON.

Scale

Displays

Functional

Condition

 

 

S

Received signal strength

Receive

 

 

 

RX

Width and shift of the

Receive;

FILTER

receive pass band

or Transmit plus

 

 

[METER] ON

 

 

 

PWR

Transmit output power

Transmit

 

 

 

ALC

Automatic level control

Transmit plus

 

status

[METER] ON

 

 

 

SWR

Antenna system

Transmit plus

 

standing wave ratio

[METER] ON

 

 

 

COMP

Speech compression

Transmit plus

 

when using the Speech

SSB/AM plus

 

Processor

[PROC] ON plus

 

 

[METER] ON

 

 

 

Pressing the [METER] button cycles through the functions as shown below:

Receive Mode:

SWR

\

ALC

 

 

 

 

 

 

c

 

d

 

 

 

 

 

OFF

b

COMP

 

 

 

 

Note: While receiving, the scales for the S-meter and the receive pass band function are always visible.

Transmit Mode:

SWR

\

ALC

 

 

 

 

 

 

c

 

d

 

Receive

b

COMP

 

pass band

Note:

While transmitting, the transmit power meter is always visible.

The COMP meter functions only when the Speech Processor is ON in SSB or AM mode.

22

Page 28
Image 28
Kenwood TS-870S instruction manual Front Panel Meter, Operating Basics Direct Frequency Entry, Meter on

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.