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INSTALLATION PRECAUTIONS

Install the tuner, antennas, and antenna cable  away from high frequency  noise generating

equipment, such as fluorescent lamps and personal computers, whenever possible.

Avoid  installing receiving antennas in close proximity to metal  stuff, such as steel frames and

lockers.  Install receiving antennas at least 30cm (1 foot) away from the wall.

The distance between two antennas must be over 3m (10 feet). If both are installed in the same

location, the diversity reception is not effective.

Coaxial  cable's high frequency loss increases as frequencies become higher. Keep the connection

cable between antenna and tuner as short as possible.

Maximum Antenna Cable Length

Cable type

RG-59/U

RG-6U

External diameter

6.1 mm (0.24")

7.4 mm (0.29")

Max. length

(when YW-620 is used.)

48m (160ft.)

48~70m (160-230 ft. )

RACK  MOUNTING

Optional mounting kit is required for rack mounting. Remove  rubber supporters from the equipment.

1. Mounting one unit in a rack. (Optional mounting kits MB-14 and BK-014B are to be used.)

2. Mounting two units in a rack. (Optional mounting kits MB-14 and J-700 are to be used.)

3X16 tapping screw

WT-870

WT-870

3 X 1 6  tapping screw

(Supplied with the MB-14)

Flat head screw (M3X6)

included in J-700

J-700

MB-14

Fiber washer (Supplied with the MB-14)

Mounting screw  (Supplied with the MB-14)

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Summary of Contents for WT-870

Page 1: ...ESS TUNER WT 870 OPERATING INSTRUCTIONS Please follow the instructions in this manual to obtain the optimum results from this unit We also recommend that you keep this manual handy for future reference TOA Corporation ...

Page 2: ...20 240V AC 50 Hz When using a component rack avoid installing the unit above heat generating equipment such as a power amplifier To avoid severe electrical shocks and possible catastrophic damage never open the unit nor touch its internal components To clean the unit s exterior wipe with a soft dry cloth Never use benzine thinner or other solvents which may damage the painted parts of the unit FEA...

Page 3: ...Panel Rear Panel Mixing Output Level Selector Switches mixing output levels Line Output Connects to the line AUX input terminal of connected component Mic Output Connects to the mic input terminal of connected component DC IN 12V DC Power input terminal for external DC power supply AC Inlet 3 pins Power input terminal for AC power supply Use the supplied power cord Antenna Connector BNC 75 Phantom...

Page 4: ...phone have to be marked with the same color for easy association with their frequencies 2 Installation Expansion The tuner module WTU 870 or WTU 871 and the tuner panel WP 860 are required 1 Remove the blank panel of the unit 2 Attach the unit s connector to the tuner panel connector 3 Insert a tuner module WTU 870 or WTU 871 4 Fit the tuner panel in place 5 Attach the frequency label supplied wit...

Page 5: ...t the indicator lights yellow at a maximum level This is not needed if the indicator lights red only occasionally If the microphone is equipped with a sensitivity control adjust the control so that the level indicator lights yellow when spoken loud CONNECTIONS When using with the mixing console connect the output of WT 870 to XLR type input connectors of the the mixing console YW 600 Direct mount ...

Page 6: ...es as frequencies become higher Keep the connection cable between antenna and tuner as short as possible Maximum Antenna Cable Length Cable type RG 59 U RG 6U External diameter 6 1 mm 0 24 7 4 mm 0 29 Max length when YW 620 is used 48m 160ft 48 70m 160 230 ft RACK MOUNTING Optional mounting kit is required for rack mounting Remove rubber supporters from the equipment 1 Mounting one unit in a rack ...

Page 7: ...hes and is not actuated if only same RF carrier as the receiving frequency is received It is so designed as to be actuated and output a signal only when the received RF carrier contains a very exact pre determined tone frequency component Therefore disturbing radio signals are rejected and the speaker can be kept completely quiet when the wireless microphone s power switch is set to OFF ensuring r...

Page 8: ...elch Sensitivity Frequency Response Residual Noise 169 445 MHz 171 905 MHz FCC Part 90 USA 174 250 MHz 215 250 MHz FCC Part 74 USA D O C CANADA 173 8 MHz 175 0 MHz MPT1345 UK 202 1 MHz 203 7 MHz DOC 60 AUSTRALIA Under 20 dBµ V S N 75 dB Deviation 15 kHz S N 80 dB Deviation 40 kHz Approx 14 dB µ V 100 Hz 12kHz 2dB Less than 30 µ V 8 µ V A weight Overall System Performance WT 870 WTU 870 WTU 871 WM ...

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