Toa WTU-4800 Notice D'utilisation

WIRELESS TUNER MODULE
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.
1. SAFETY PRECAUTIONS
• Be sure to read the instructions in this section carefully
before use.
• Make sure to observe the instructions in this manual as
the conventions of safety symbols and messages
regarded as very important precautions are included.
• We also recommend you keep this instruction manual
handy for future reference.
WARNING
hazardous situation which, if mishandled, could result
in death or serious personal injury.
When Installing the Unit
• Do not expose the unit to rain or an environment where it
may be splashed by water or other liquids, as doing so
may result in fire or electric shock.
2. GENERAL DESCRIPTION
The TOA WTU-4800 Wireless Tuner Module is designed to be used in conjunction with UHF wireless equipment for vocal
or speech reinforcement applications. Its built-in circuit minimizes the influence of ambient noise.
3. HANDLING PRECAUTION
Never open nor remove the unit case, as doing so may result in unit failure. Refer all servicing to your nearest TOA dealer.
4. OPERATION
Refer to the operating instructions attached to equipment to be used with the tuner module for installation and operation of
the tuner module.
5. SPECIFICATIONS
Power Requirement
Current Consumption
Receiving Frequency
Receiving System
Receiving Sensitivity
Antenna Input Impedance
Diversity System
Channel
Squelch System
Squelch Sensitivity
Output
Harmonic Distortion
Frequency Response
Operating Temperature
Operating Humidity
Finish
Dimensions
Note : The design and specifications are subject to change without notice for improvement.
Indicates a potentially
7 – 12 V DC
100 mA
576 – 865 MHz (576 – 606 MHz and 614 – 698 MHz for
USA/Canada)
Double superheterodyne
Better than 80 dB, S/N ratio (20 dBμV input, 40 kHz deviation)
75 Ω
Space diversity
16 channels selectable
Noise SQ
17 dBμV
0 dB* (maximum deviation, 2.2 kΩ load)
Less than 1%
100 Hz – 12 kHz , ±3 dB
–10 to +50°C
30 % to 85 %RH
Steel
60 (w) x 25 (h) x 139 (d) mm
INSTRUCTION MANUAL
• The equipment shall be fed from a power supply which is
in compliance with requirements of SELV circuit on the
EN60950 standard.
CAUTION
situation which, if mishandled, could result in moderate or
minor personal injury, and/or property damage.
When Installing the Unit
• Do not mount the module in equipment other than those
designated. It is identical to the WTU-860 and WTU-870
wireless tuner modules in shape. However, since its pin
arrangement differs, it does not operate correctly when
mounted in the tuner (such as the WT-860 and WT-870)
other than those designated. This could also cause
failures to the tuner in which the unit is mounted.
WTU-4800
Indicates a potentially hazardous
* 0 dB = 1 V
• Accessories
Driver for channel
changing ....................... 1