Bedienungsanleitung Kenwood TS-480SAT (Seite 44 von 104) (Englisch)

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8 COMMUNICATING AIDS

TRANSMISSION

VOX (VOICE-OPERATED TRANSMIT)

VOX eliminates the necessity of manually switching

to the transmission mode each time you want to

transmit. The transceiver automatically switches to

transmission mode when the VOX circuitry senses

that you have begun speaking into the microphone.

When using VOX, develop the habit of pausing

between thoughts to allow the transceiver to drop

back to reception mode briefly. You will then hear if

anybody wants to interrupt, plus you will have a short

period to gather your thoughts before speaking again.

Your listeners will appreciate your consideration as

well as respect your more articulate conversation.

VOX can be switched ON and OFF independently for

CW and the other modes, excluding FSK.

Press [VOX/ 8] to toggle between VOX ON and OFF.

• “VOX” appears when the VOX function is ON.

■ Microphone Input Level

To enjoy the VOX function, take the time to

properly adjust the gain of the VOX circuit. This

level controls the capability of the VOX circuit to

detect the presence or absence of your voice.

In CW mode, this level cannot be adjusted.

1 Select USB, LSB, FM, or AM mode.

2 Press [VOX/ 8] to switch the VOX function ON.

• “VOX” appears.

3 Press [VOX/ 8] (1 s).

• The current VOX gain level appears on the

sub-display.

4 While speaking into the microphone using your

normal tone of voice, adjust the setting (default

is 4) using the MULTI control until the

transceiver reliably switches to transmission

mode each time you speak.

• The selectable gain range is from 0 to 9.

• The setting should not allow background

noise to switch the transceiver to transmit

mode.

Note:

The VOX gain level can be adjusted even if VOX is

switched OFF or while you are transmitting.

■ Delay Time

If the transceiver returns to reception mode too

quickly after you stop speaking, your final word

may not be transmitted. To avoid this, select an

appropriate delay time that allows all of your

words to be transmitted without an overly long

delay after you stop speaking.

1 Select USB, LSB, FM, or AM mode.

2 Press [VOX/ 8] to switch the VOX function ON.

• “VOX” appears.

3 Press [KEY/ DELAY] (1 s).

• The current setting appears on the sub-

display. The default is 50 (1500 ms).

4 While speaking into the microphone using your

normal tone of voice, turn the MULTI control

such that the transceiver switches to reception

mode after you have stopped talking.

• The selectable range is from 5 to 100

(150 ms to 3000 ms) in steps of 5, or OFF.

5 Press [MTR/ CLR] to store the parameter and

exit the setting mode.

■ Anti-VOX adjustment

The TS-480 transceiver has a DSP IC to improve

and customize incoming/ outgoing audio signals.

When VOX function is turned ON, the DSP IC

adjusts the Anti-VOX level automatically,

comparing the reception sound level and

microphone input level. So, you never have to

worry about adjusting the anti-VOX level.

■ VOX Source

Although microphone is normally used to perform

the VOX transmission, you can also utilize AF

input of the DATA connector (pin 1) on the TX/ RX

unit {page 78}. When the transceiver detects the

audio signal on the pin 1 of DATA connector, the

transceiver automatically transmits.

1 Select USB, LSB, FM, or AM mode.

2 Press [VOX/ 8] to switch the VOX function ON.

• “VOX” appears.

3 Press [MENU/ F.LOCK] and turn MULTI

control to select Menu No. 60.

4 Press [ ] to switch the VOX with DATA input

function ON.

5 Turn MULTI control to select Menu No. 46.

6 While sending AF signal to pin 1 of DATA

connector, adjust the value (default is 4) using

[ ]/ [ ] until the transceiver reliably switches

to transmit mode each time you send AF signal

to pin 1 of DATA connector.

Note:

VOX function does not work even if you speak into the

microphone. However, you can transmit with the Mic

[PTT]

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