Bedienungsanleitung Kenwood TS-2000E (Seite 38 von 150) (Englisch)

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7 BASIC COMMUNICATIONS

CW TRANSMISSION

CW operators know that this mode is very reliable

when communicating under worst conditions. It may

be true that newer digital modes rival CW as being

equally as useful in poor conditions. These modes,

however, do not have the long history of service nor

the simplicity that CW provides.

This transceiver has a built-in electronic keyer that

supports a variety of functions. For details on using

these functions, refer to “ELECTRONIC KEYER”

{page 42}.

If necessary, refer to “OPERATING BASICS”,

beginning on page 18, for details on how to receive.

1 Select the operating frequency.

2 Press [CW/ FSK/ REV] to select CW mode.

• “CW” appears.

• To precisely tune in another station, use Auto

Zero-beat. Refer to “AUTO ZERO-BEAT”

{below}.

3 Press [SEND].

• The MAIN band LED lights red.

• Refer to “CW BREAK-IN” {page 42} for

information on automatic TX/ RX switching.

4 Begin sending.

• As you transmit, you should hear a sidetone

that lets you monitor your own transmission.

Refer to “TX SIDETONE/ RX PITCH

FREQUENCY” {below}.

5 Press [SEND] to return to receive mode.

• The MAIN band LED lights green or turns off,

depending on the MAIN SQL setting.

Note: You may adjust the carrier level when necessary. Press

[FUNC], [MIC/ CAR] to enter the adjustment mode. With the key

down, turn the MULTI/ CH control so that the ALC meter reads within

the ALC zone but does not exceed the upper ALC zone limit. Press

[FUNC], [MIC/ CAR] again to complete the adjustment.

AUTO ZERO-BEAT

Use Auto Zero-beat before transmitting to tune in a

CW station. Auto Zero-beat automatically and exactly

matches your transmit frequency with the station you

are receiving. Neglecting to do this will reduce your

chances of being heard by the other station.

1 Press [FUNC], [RIT/ CW TUNE] to start Auto

Zero-beat.

• “CW TUNE” appears.

• Your transmit frequency automatically changes

so that the pitch of the received signal exactly

matches the TX sidetone/ RX pitch frequency

that you have selected. Refer to “TX

SIDETONE/ RX PITCH FREQUENCY” {below}.

• When matching is completed, “CW TUNE”

disappears.

• If matching is unsuccessful, the previous

frequency is restored.

2 To quit Auto Zero-beat, press [FUNC],

[RIT/ CW TUNE] or [CLR].

Note:

◆

You cannot start Auto Zero-beat if you have selected 1.0 kHz or

wider for the DSP filter bandwidth.

◆

When using Auto Zero-beat, the matching error is within

50 Hz

in most cases.

◆

Auto Zero-beat may fail if the keying speed of the target station is

too slow or when some interference is present.

◆

When RIT function is ON, only RIT frequencies change to make

the Auto Zero-beat adjustment.

TX SIDETONE/ RX PITCH FREQUENCY

As you send CW, you will hear tones from the

transceiver speaker. These are called transmit (TX)

sidetones. Listening to these tones, you can monitor

what you are transmitting. You may also use the

tones to ensure that your key contacts are closing,

the keyer is functioning, or to practice sending without

actually putting a signal on the air.

Receive pitch refers to the frequency of CW that you

hear after tuning in a CW station.

On this transceiver, the frequency of the sidetone and

receive pitch are equal and selectable. Access Menu

No. 31 to select the frequency that is most

comfortable for you. The selectable range is from

400 Hz to 1000 Hz in steps of 50 Hz.

To change the volume of the TX sidetone, access

Menu No. 13. The selections range from 1 to 9 and

OFF.

Note: The position of the MAIN AF and SUB AF controls do not

affect the volume of the TX sidetone.

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Kenwood TS-2000E Seite 38

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