Toa WT-4800 Скачать руководство пользователя страница 4

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2. GENERAL DESCRIPTION

The WT-4800 Wireless Tuner is designed for use on the UHF band, and suitable for vocal or speech
reinforcement applications. It features a compander circuit which minimizes the influence of ambient noise. 

3. FEATURES

• 64 different operating frequencies (4 banks x 16 channels) 

• Optimized PLL-synthesizer drastically minimizes the oscillation frequency drift resulting from the ambient

temperature changes.

• The Scan function indicates available idle channels and is useful when changing the operating frequency. 

• The LCD screen indicates the current operating frequency, as well as RF and AF levels.

• Antenna distribution outputs and audio cascade inputs facilitate connection of another unit to build a dual-

channel system. 

• Compact size and high reliability 

4. HANDLING PRECAUTIONS

• Make sure that the power switch is switched OFF after use.

• When mounting in an equipment rack, select the position which does not expose the unit to high

temperature. 

• When installing, keep the unit as far away as possible from fluorescent lamps, digital equipment, personal

computers, and other equipment which generate high frequency noise.

• Only the same bank wireless systems can be used in the same location. Avoid using the systems in

combination with those of different banks because interference or noise could be generated.

• Wireless tuners to be installed in the same location must differ from each other in channel number. Setting

them for the same channel number could result in noise. Wireless microphones must be identical to wireless
tuners in both bank and channel numbers. 

• When using two or more wireless microphones, keep them at least 50 cm away from each other to avoid

malfunctions or noise. 

• Keep the wireless microphone at least 3 m away from the receiving antenna. Using the microphone in close

proximity to the antenna could result in malfunctions or noise. 

• Be sure to connect at least two receiving antennas (one each for Channels A and B). Connect four antennas

(two each for Channels A and B) when installing the unit in the place of wide area or where dead spots are
frequently encountered. 

Содержание WT-4800

Страница 1: ...ES 4 4 HANDLING PRECAUTIONS 4 5 NOMENCLATURE AND FUNCTIONS Front 5 Rear 5 6 OPERATION 6 1 Basic Operation 6 6 2 Channel Bank Number Settings 6 6 3 Microphone Sensitivity Adjustment 7 7 HOW TO CHECK AN...

Страница 2: ...y switch off the power disconnect the power supply plug from the AC outlet and contact your nearest TOA dealer Make no further attempt to operate the unit in this condition as this may cause fire or e...

Страница 3: ...shock When the Unit is in Use Do not place heavy objects on the unit as this may cause it to fall or break which may result in personal injury and or property damage In addition the object itself may...

Страница 4: ...temperature When installing keep the unit as far away as possible from fluorescent lamps digital equipment personal computers and other equipment which generate high frequency noise Only the same ban...

Страница 5: ...NC For the wireless system covering a relatively narrow area use the supplied two rod antennas one of which should be mounted at a 45 angle outwards from a vertical line 9 Antenna input B For signal r...

Страница 6: ...e SET FREQUENCY indication is first displayed The display then cycles through the SET BANK SET SQ LEVEL Rf CHECK CHANNEL CHECK INDEX and END SETTING indications with each subsequent depression of the...

Страница 7: ...nsitivity Adjustment Although the audio level is preset by the factory it can be adjusted depending on the user s voice level Step 1 Holding the microphone body rotate the microphone grip counterclock...

Страница 8: ...k mode for a while and check signal condition of the channel Adjust squelch control to limit service area When radio interference is still encountered consult shop from where unit was purchased Refer...

Страница 9: ...ondition that a radio signal to be received is a certain level of signal strength This strength level can be varied by means of the squelch control 7 4 1 Squelch Level Setting Step 1 Press the Menu En...

Страница 10: ...e input MIC LEVEL To amplifier microphone input LINE LEVEL To amplifier line input MIC LEVEL To amplifier microphone input Balanced Unbalanced Accessory or Wall mounted wireless antenna YW 4500 option...

Страница 11: ...nector supplied with MB WT2 When mounting two WT 4800 units use an optional mounting kit MB WT2 10 FIRMWARE VERSION Step 1 Press the Menu Enter key for over a second to place the unit in setting mode...

Страница 12: ...tor balanced Mixing Input 20 dB 10 k Phone jack unbalanced Antenna Input 75 BNC phantom powering for antenna 9 V DC 30 mA max Antenna Output 75 BNC Gain 0 dB Receiving Sensitivity Better than 80 dB S...

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