Ritron Quick Talk Manuel du propriétaire télécharger pdf (Page 9)

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Some two-way radios have a feature referred to as

companding. It is a way of eliminating background

hiss or noise, making the radio sound clearer.

Companding is a combination of audio COMPression

in the transmitter and audio exPANDing in the receiver.

The Quick Talk can be set for audio compression by

means of a program jumper. To determine if your existing

2-way radios are using the Companding feature, you can

check the radios User Manual, contact your radio dealer,

or call Ritron for help.

Not-Compressed: (Refer to FIG-3)

To set the Quick Talk for standard audio or not-

compressed, place the jumper so that the middle pin and

the pin closest to the word NON-COMP are covered by

the jumper.

Compressed: (Refer to FIG-3)

To set the Talk for compressed audio, place the jumper so

that the middle pin and the pin closest to the word COMP

are covered by the jumper.

SETTING NARROW OR WIDE-BAND

CHANNELS

Determine the frequency of your radios. This can be done

by checking with your radio dealer, or if you are using

Color Dot radios, match the color dot to the frequency

table on Page 2. As a general rule, if your frequency has

three or less numbers past the decimal point, your radio

is set for wideband. Example 154.570 MHZ, 462.625 MHz.

If your frequency has more than three numbers past the

decimal point, it is probably set for narrowband. Example:

467.7625 MHz, 467.8125.

Wide: (Refer to FIG-2)

To set your Quick Talk into wideband position, place the

Transmitter Bandwidth Select Jumper so that both pins of

the 2 pin connector are covered by the jumper.

Narrow: (Refer to FIG-2)

To set your Quick Talk into narrowband position, place

the Transmitter Bandwidth Select Jumper so that only

1 pin of the 2 pin connector is covered by the jumper.

FIG2. J102 SETTING FOR NARROW OR

WIDE-BAND OPERATION

Narrow-Band Wide-Band

CompressedNot-Compressed

FIG3. POSITION FOR NOT-COMPRESSED/

COMPRESSED AUDIO

COMPRESSED/NOT-COMPRESSED

AUDIO SELECTOR JUMPER

I M P O R T A N T

You may change the Transmitter Bandwidth and Compressed/Non-

Compressed Audio jumper settings

without re-recording your custom

voice message.

If you are unable to determine if your portable radio uses the

companding feature, we suggest the following:

1. Leave the jumper in the factory default setting NON-COMP.

2. Activate the transmitter of the Quick Talk or Quick Assist (I or II)

and listen to the message from your portable radio. If the

received audio is acceptable, skip the rest of this section, if its

not acceptable continue to step #3.

3. Change the jumper setting to the COMP position and activate

the Quick Talk or Quick Assist (I or II) transmitter again, and

listen to the voice message.

Place the jumper in the setting that produces the best

received audio message in the radio you will be using.

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Ritron Quick Talk Manuel du propriétaire Page 9

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