Sony WRT-808A Manuale utente

3-866-919-21 (1)

WRT-808A

UHF

Synthesized Transmitter

1999 Sony Corporation [AU66]

Operating Instructions

Table of Contents

Precautions......................................................................... 2

Overview............................................................................. 3

Wireless Channels Selectable ........................................ 3

System Configuration .................................................... 3

Features .......................................................................... 4

Wireless Channel List ....................................................... 5

Parts Identification ............................................................ 6

Power Supply ..................................................................... 7

Channel Setting.................................................................. 8

Microphone System Operation ........................................ 9

Use of the Soft Case ......................................................... 11

Specifications..................................................... Back cover

•The unit is designed for use in ambient temperature range

of 0°C to 50°C (32°F to 122°F).

•Do not place the unit on or near heat sources, such as

lighting equipment, power amplifiers, or in a place subject

to direct sunlight or excessive moisture. In such places,

the external finish or internal parts of the unit may be

damaged.

•If the unit is used in a very humid or dusty place or in a

place subject to an active gas, clean its surface as well as

the connectors with a dry, soft cloth soon after use.

Lengthy use of the unit in such places or not cleaning it

after its use in such places may shorten its life.

•When cleaning the unit, never use organic solvents such

as thinners or benzine, which will damage the finish of the

unit.

•The unit has been factory adjusted precisely. Do not

tamper with its internal parts or attempt to repair it.

Precautions

channel

Frequency(MHz)

792.250 - 798.500b)

799.250 - 805.500b)

System Configuration

The WRT-808A can be used with the WRR-802A/WRU-

806A UHF synthesized Diversity Tuner and also can be

used with the WRR-820A/840A/850A/855A UHF

Synthesized Diversity Tuner.

Sony 800 MHz band system models

a) For this models, the AN-820A UHF antenna and the WD-820A UHF

antenna divider are required.

b) When using the WRT-808A, 98 channels are selectable in frequency

band of 792.250-798.250MHz or 799.250-805.250MHz.

Transmitter or

microphone

WRT-805A

WRT-807A

WRT-808Ab)

WRT-810A

WRT-820A

WRT-822A

WRT-830A

WRT-860A

WRT-867A

The WRT-808A is a transmitter which converts a hand-held

dynamic microphone into a wireless microphone, ensuring

excellent sound quality of the microphone itself and

providing the convenience especially for Electronic News

Gathering (ENG), live and other Electronic Field Production

(EFP) applications. Combining with 800 MHz band Sony

UHF wireless microphone system, use this highly reliable

transmitter for broadcast and movie production purpose.

Wireless Channels Selectable

The transmitter and tuner of the wireless microphone system

are classified by frequency band.

A 792-806 MHz frequency band is assigned to the WRT-

808A/66 model, permitting it to operate on any of 98 carrier

frequencies in 125-kHz steps of Sony original channel plan

in the range of TV channels 66 and 67.

Note

The WRT-808A provides 98 channels as listed on page 5.

In building a UHF wireless microphone system, be sure to

combine a transmitter and a tuner having the same TV

channel number.

Overview

Frequency band

Tuner

WRR-802A

WRR-805A

WRR-810A

WRR-820Aa)

WRR-840Aa)

WRR-850A a)

WRR-855A

WRR-860A

Model name

Features

Easy selection of 98 channels

The PLL synthesized system assures easy selection of 98

channels and full compatibility with Sony 800 MHz series

wireless microphone system.

Easy and reliable connection

The WRT-808A can be adapted to a wide variety of wired

microphone which has a XLR audio connector. The reliable

connection assures the noise-free operation.

Compact and lightweight

High density mounting technology enables this compact and

light weight transmitter, to allow you to move anywhere for

Electronic News Gathering (ENG) and Electronic Field

Production (EFP).

Operation powered by easily available batteries

Approximately four hours of continuous operation is

ensured with two AA-size (LR6) alkaline batteries. By

virtue of DC-DC converter, consistent output power is

assured over the life of the batteries.

Battery status information on both transmitter and

tuner

To avoid the battery failure, the WRT-808A shows the

battery status with the LED indication in green, red and

flashing. About one hour before the battery exhausted, the

WRT-808A gives the battery information to make the alarm

on the tuner WRR-802A/WRR-805A/WRR-850A/WRU-

806A.

LED indication of audio input

The AF/PEAK indicator allows you to comprehend the

condition of audio input level at a glance.

Continuous control of input attenuation

When an excessively strong audio signal is inputted, the

input level can be adjusted in the range of 0 to 50 dB

continuously.

When setting the 50 dB attenuation, the WRT-808A can

accept +4 dB (maximum 20 dB) line level input.

Selectable RF power output

You can select the RF output level either 50 mW or 10 mW

to suit the operating condition.

Overview

Channel Frequency(MHz) Channel Frequency(MHz)

66-26 795.375 67-26 802.375

66-27 795.500 67-27 802.500

66-28 795.625 67-28 802.625

66-29 795.750 67-29 802.750

66-30 795.875 67-30 802.875

66-31 796.000 67-31 803.000

66-32 796.125 67-32 803.125

66-33 796.250 67-33 803.250

66-34 796.375 67-34 803.375

66-35 796.500 67-35 803.500

66-36 796.625 67-36 803.625

66-37 796.750 67-37 803.750

66-38 796.875 67-38 803.875

66-39 797.000 67-39 804.000

66-40 797.125 67-40 804.125

66-41 797.250 67-41 804.250

66-42 797.375 67-42 804.375

66-43 797.500 67-43 804.500

66-44 797.625 67-44 804.625

66-45 797.750 67-45 804.750

66-46 797.875 67-46 804.875

66-47 798.000 67-47 805.000

66-48 798.125 67-48 805.125

66-49 798.250 67-49 805.250

Wireless Channel List

Channel Frequency(MHz) Channel Frequency(MHz)

66-01 792.250 67-01 799.250

66-02 792.375 67-02 799.375

66-03 792.500 67-03 799.500

66-04 792.625 67-04 799.625

66-05 792.750 67-05 799.750

66-06 792.875 67-06 799.875

66-07 793.000 67-07 800.000

66-08 793.125 67-08 800.125

66-09 793.250 67-09 800.250

66-10 793.375 67-10 800.375

66-11 793.500 67-11 800.500

66-12 793.625 67-12 800.625

66-13 793.750 67-13 800.750

66-14 793.875 67-14 800.875

66-15 794.000 67-15 801.000

66-16 794.125 67-16 801.125

66-17 794.250 67-17 801.250

66-18 794.375 67-18 801.375

66-19 794.500 67-19 801.500

66-20 794.625 67-20 801.625

66-21 794.750 67-21 801.750

66-22 794.875 67-22 801.875

66-23 795.000 67-23 802.000

66-24 795.125 67-24 802.125

66-25 795.250 67-25 802.250

3POWER/BATT indicator

4AF/PEAK indicator

5Input LEVEL control

6Channel select

switches 7RF power

output switch

1Microphone

connector

2POWER switch

Battery compartment

Microphone

release button

(under side of

the unit)

Parts Identification

1Microphone connector

Connect to a dynamic microphone which has a XLR type

connector.

2POWER switch

Turns the power of the transmitter ON or OFF.

3POWER/BATT indicator

When turning on the unit, the POWER/BATT indicator

lights in green. While in operation, the LED indicates the

battery condition.

See “Power Supply” on page 7.

4AF (audio frequency) /PEAK indicator

The AF/PEAK indicator lights in green when the supplied

audio frequency level is over the reference level. It lights in

red when the signal reaches the maximum level.

5Input LEVEL control

Controls the input attenuation level.

“–60” position provides 0 dB attenuation, and “–10”

position provides 50 dB attenuation.

6Channel select switches

Select the transmitting channel.

See “Channel Setting” on page 8.

7RF power output switch

In normal use, set the switch to “50”.

See “Use of RF power output switch” on page 10.

The transmitter can operate on two LR6 (size AA) alkaline

batteries continuously for about 4 hours at 25°C (77°F).

Installing the batteries

Power Supply

1Turn the battery-compartment screw counterclockwise.

2Match the polarities and insert the batteries.

3Close the lid.

Battery indication

When you turn the power on, the POWER/BATT indicator

lights in green.

While in operation, the POWER/BATT indicator shows the

battery condition as shown below.

Lights in green: Good

Lights in red: The battery level is low. About one hour

is left for continuous operation.

Flashing in red: The batteries are almost exhausted.

The unit does not work.

Promptly replace the batteries when the POWER/BATT

indicator lights in red or flashes.

When the POWER/BATT indicator lights in red on this unit,

the BATT indication on the tuner (WRR-802A/WRR-805A/

WRR-850A/WRU-806A.) starts flashing as a warning.

Note

The indication may be incorrect if the batteries are not new

when installed. If you plan to use the transmitter for a long

period, it is best to replace the batteries with new ones.

Two LR6 (size AA)

alkaline batteries

Power Supply Channel Setting

Caution

Turn off the transmitter when setting the transmitting

channel to eliminate interference or noise on other wireless

equipment.

Each

“Wireless Channel”

is represented on the unit by a 2-

digit TV channel number followed by another 2-digit

number, for example: 67-05.

Set the channel select switches for the clicked position of

the desired channel number by using a screw driver.

The left switch selects the TV band and the 10’s digit of the

transmitting channel. The right switch selects the 1’s digit of

the transmitting channel.

670

237

Set the left switch to “67” side “0”.

Set the right switch to “5” .

For the selectable wireless channels and frequencies, see

“Wireless Channel List” on page 5.

Notes on batteries

•Use new alkaline batteries, and check the recommended

“

useby” date on the bottom of the batteries.

•Do not pair different types of batteries.

•Always replace the two batteries together.

•The batteries are not rechargeable.

•Be careful to install the batteries with the correct polarity.

•When not using the transmitter for a long period, remove

the batteries to avoid leakage. If the batteries do leak, clean

all leakage from the unit. Leakage left in the unit may cause

poor battery contact. If there seems to be poor battery

contact, consult your Sony dealer.

To dettach a

microphone,

press the

microphone

release

button.

Microphone connection

If noise is heard

Depending on the environment where the system is

installed, outside noise or radio wave may disrupt the

transmission of certain channels.

To select a channel under this circumstance, turn off the

transmitter. Select a channel on the tuner, at which the RF

indicator is off. (A channel free from noise or radio wave

interference is selected.) Then, set the same channel on the

transmitter.

Sony microphones F-780/740/730/720/710, etc.

Attach a microphone

to the unit directly or

use a microphone

cable with XLR-3-11

and XLR-3-12 type

connectors.

Notes

•Be sure to set the arrow mark of the channel select switch

to the clicked position of the desired channel number. If

the switch does not click on the channel number, the

desired channel may not be set on the unit.

•If the channel select switches are operated while the

transmitter is on, the POWER/BATT indicator flashes in

green as a warning.

•If you set to any channel other than those listed in

“Wireless Channel List” on pag 5, the POWER/BATT

indicator flashes in green as a warning.

•While the POWER/BATT indicator is flashing, the RF

output signal send from the transmitter becomes lower

than the usable level.

While POWER/BATT indicator on the transmitter is

flashing, the RF input indicator on the tuner may light, if

the transmitter locates near the tuner.

Though the RF input indicator lights on the tuner, the

Sony tuner (equipped with muting function) makes neither

noise nor audio output.

•Make sure that the channel selected is the same as that

selected on the tuner used in the same system.

•If there is a TV broadcasting station near by, do not use

the station's channel.

Microphone System

Operation

Use of RF power output switch

The RF power output switch (located inside of the battery

compartment) selects the RF power output either 50 mW or

10 mW. In normal use, set the switch to “50” (factory preset

position).

50 mW output is suitable for optimum transmission over

long working distance.

10 mW output will be suitable for multi-channel operation

to eliminate the interference.

Use of input LEVEL control

When the AF/PEAK indicator lights in green continuously,

the supplied audio signal is continuously over the reference

level. If this occurs, use the input LEVEL control to avoid

sound distortion.

By turning the control to “–10”, the WRT-808A provides 50

dB input attenuation and can be inputted +4 dB (maximum

20 dB) line level signal.

Notes on microphone system operation

•To operate with two or more channels, maintain a distance

of at least 30 cm (one ft.) between each pair of

transmitters.

For details of operation with two or more channels, refer

to the Operating Instructions for the WRR-802A/WRR-

805A/WRR-850A/WRU-806A, etc.

•Ensure that the transmitter set to channels not being used

are either turned off or set to the minimum output level.

•When powering the transmitter on or off, to keep the noise

to a minimum, set the audio output level from the tuner or

mixer to a minimum.

•Powering the transmitter on without checking the channel

selection first may interfere with the operation of other

microphones/transmitters, if the current setting is already

being used.

•To prevent noise generation, keep the transmitters at least

3m (10 feet) away from the tuner antennas when the

system is operated using a group which allows selection of

up to 11 channels.

•Do not grip the transmitter while using as it

will significantly degrade good

performance, causing dropouts, etc. Hold

the microphone itself as shown.

Microphone System Operation

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