SCAN

Scan is a useful feature for hands-off monitoring of your favorite frequencies. After becoming comfortable with how to use all types of Scan, the monitoring flexibility gained will increase your operating efficiency.

This transceiver provides the following types of Scan:

 

Scan Type

Purpose

 

 

 

Program Scan

General update of activity

 

 

 

on the entire band or a

 

 

 

sub-section of the band

 

 

 

while in VFO mode.

 

 

 

 

 

 

All-channel

Quick activity update of all

 

 

Scan

programmed Conventional

Memory

 

memory channels.

 

 

Scan

 

Group Scan

Quick activity update of a

 

 

 

selected group of

 

 

 

Conventional memory

 

 

 

channels.

 

 

 

 

PROGRAM SCAN

The Program Scan function scans the range between the Start frequency and End frequency stored in memory channel 99. If Program Scan is used before you store a Start and an End frequency, then the lower and upper frequency limits of the transceiver are automatically stored for the Start and End frequencies respectively. Some General market versions substitute the lower and upper frequencies for the current band in place of the frequency limits of the transceiver.

Program Scan direction is controlled by the Start and End frequency relationship. The following table summarizes the way that Program Scan functions:

JumpsStart/Endto Start

Current

Program Scan

Frequencyf

Frequency

Action

EndRelationship

 

 

 

Within Scan

Up

Start frequency

range

 

LOWER THAN

Lower or higher

Jumps to Start

End frequency

than Scan range

frequency, then

 

 

 

scans up.

 

 

 

 

Start/End

Monitors

 

frequency

Start/End

Start frequency

 

frequency.

EQUAL TO

 

 

Lower or higher

Jumps to

End frequency

than Start/End

Start/End

 

 

frequency

frequency and

 

 

monitors it.

 

 

 

 

Within Scan

Down

Start frequency

range

 

HIGHER THAN

 

 

Lower or higher

Jumps to Start

End frequency

than Scan range

frequency, then

 

 

 

scans down.

 

 

 

For a refresher on how to store the Program Scan Limits, refer to ÒSTORING SCAN LIMITS IN CH 99Ó {page 58}. The following are additional important points regarding the Program Scan function:

¥Starting a transmission by closing the CW key, by sending a packet, or by triggering the VOX circuit by voice or the DRU-3 Digital Recording Unit stops Program Scan; however, transmission does not begin immediately.

¥When the Program Scan range is smaller than a single step of the M.CH/VFO.CH control, turning this control causes Scan to jump to the lower of the Start/End frequencies, then continue scanning.

¥Starting the Program Scan function switches OFF the RIT and XIT functions. RIT and XIT are not switched ON again when Program Scan stops, and the RIT/XIT offset frequency is not cleared.

¥Operating mode can be changed while scanning.

¥If Automatic Mode is switched ON, it will function with the Program Scan function.

Use the following procedure to activate Program Scan.

1Select the VFO mode using VFO A or VFO B.

2Press [SCAN].

3To stop scanning, press [SCAN], or [CLR], or [SEND], or Mic [PTT].

SCAN HOLD

While using Program Scan, if Menu No. 65 (PG.S.HOLD) is switched ON, then turning the Tuning or M.CH/VFO.CH control stops the transceiver from scanning for approximately five seconds. This is also true if Mic [UP] or [DWN] is pressed. Program Scan resumes after the five second pause. The default is OFF.

CONFIRMING START/END LIMITS

1Recall memory channel 99.

2Press [DOWN] to check the Start frequency and press [UP] to check the End frequency.

60

Page 66
Image 66
Kenwood TS-870S instruction manual Program Scan, Scan Hold, Confirming START/END Limits

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.