Sony WRT-8P Manual de usuario
DRAFT
UHF Synthesized
Transmitter
Operating Instructions
Before operating the unit, please read this manual thoroughly and
retain it for future reference.
WRT-8P
©2006 Sony Corporation
Owner’s Record
The model number plate is located on the side and the serial number is located inside
the battery compartment. Record the model and serial numbers in the space provided
below. Refer to these numbers whenever you call upon your Sony dealer regarding
this product.
Model No. WRT-8P Serial No. _____________________
Notice for customers in the U.S.A.
Use of Sony wireless devices is regulated by the Federal Communications
Commission as described in Part 74 subpart H of the FCC regulations and users
authorized thereby are required to obtain an appropriate license.
You are cautioned that any changes or modifications not expressly approved in this
manual could void your authority to operate this equipment.
IMPORTANT NOTE: To comply with the FCC RF exposure compliance
requirements, no change to the antenna or the device is permitted. Any change to the
antenna or the device could result in the device exceeding the RF exposure
requirements and void user’s authority to operate this device.
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance 20cm between the radiator and body (excluding extremities:
hands, wrists and feet).
FCC Radiation Exposure Statement:
The available scientific evidence does not show that any health problems are
associated with using low power wireless devices. There is no proof, however, that
these low power wireless devices are absolutely safe. Low power Wireless devices
emit low levels of radio frequency energy (RF) in the microwave range while being
used. Whereas high levels of RF can produce health effects (by heating tissue),
exposure to low level RF that does not produce heating effects causes no known
adverse health effects. Many studies of low level RF exposures have not found any
biological effects. Some studies have suggested that some biological effects might
occur, but such findings have not been confirmed by additional research. The WRT-
8P has been tested and found to comply with the Federal Communications
Commission (FCC) guidelines on radio frequency energy (RF) exposures.
2
Notice for customers in Canada:
Use of Sony wireless devices is regulated by the Industry Canada as described in
their Radio Standard Specification RSS-123. A license is normally required. The
local district office of Industry Canada should therefore be contacted. When the
operation of the device is within the broadcast band, the license is issued on no-
interference, no-protection basis with respect to broadcast signals.
Operation of this device is subject to the following two conditions: (1) this device
may not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
The term “IC:” before the radio certification number only signifies that Industry
Canada technical specifications were met.
IC Exposure of Humans to RF Fields
The installer of this radio equipment must ensure that the antenna is located or
pointed such that it does not emit RF field in excess of Health Canada limits for the
general population; consult Safety Code 6, obtainable from Health Canada’s website
www.hc-sc.gc.ca/rpb”
3
Table of Contents
•Overview (Features) ---- 5
•Precautions ---- 5
•Parts Identifications ---- 6
•Power Supply ---- 9
•Settings ---- 10
Initialing setting mode
Setting the transmission channel
Setting the attenuation level of the audio input
Setting the RF output power
Setting the +48V power supply
•Attachment and installation procedures ---- 13
•Notes on microphone system operations ---- 14
•System Configurations ---- 15
•Error Messages ---- 16
•Specifications ---- 17
4
Overview
The WRT-8P is a plug-on transmitter
for a UHF synthesized wireless
microphone system to be used for
broadcast or movie production purpose.
This transmitter is suitable for
Electronic News gathering (ENG) and
Electronic Field Production (EFP).
The microphone/transmitter and tuner
of the wireless microphone system are
classified by frequency band.
A 24-MHz frequency band is assigned
to each microphone/transmitter and
tuner model. In building a UHF
wireless microphone system, be sure to
combine a microphone/transmitter and
a tuner having the same wireless
channel (frequency).
Features
The features of the WRT-8P are:
•Converts a wired microphone to a
wireless microphone via an XLR-type
connector.
•Compact and lightweight metal body
provides high durability and good
balanced handling.
•250 mW high RF output power for
stable long-distance transmission.
•Selectable RF output power: 250
mW/50 mW.
•+48 V power supply capability.
•Switchable input level: MIC/LINE
•Attenuator function allows adjustment
of the audio-input level.
•A backlit LCD provides extensive
information.
•Optimized balance when combined
with the F-112 dynamic microphone.
Precautions
• 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 expose to an active or
corrosive 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.
5
Parts Identification
Audio input connector
2
8
9
1
3
5
6
7
AF/PEAK indicator
(Audio input LEVEL)
H
Display section
SET button
6
MIC / LINE selector
POWER switch
+48V indicator
10
4- , + buttons
AF LEVEL control
Battery lid
Parts identification
Audio input connector
Connect the following Sony’s
microphones: F112, ECM-678, ECM-
674 or a line output cable from Sony’s
portable mixer DMX-P01.
When connecting a microphone or a
cable to the unit, be sure to turn the
unit off.
SET button
In Transmitting mode, press this
button to change the indicated items in
the lower half of the LCD display.
The SET button is also used to enter
the Setting mode and select the item to
be set.
+ / – buttons
In setting mode, select the
transmission channel, frequency and
RF output power setting using either of
these buttons, or set/reset the +48V
power supply.
POWER switch
Turns the transmitter ON or OFF.
Be sure to connect a microphone or a
cable before turning the power ON.
AF LEVEL control
Adjusts the audio level from the audio
input connector.
3
2
4
5
Caution
Note
6
A AF (audio input) indication
Appears whenever an audio signal
stronger than the reference level is
received.
B RF (antenna output) indication
Appears during signal transmission
from the antenna.
C RF power indication
Shows the RF output power setting.
See “Changing the RF Output Power.”
D BATT (battery) indication
Shows the battery condition.
See “Battery indication” in “Power
Supply” section.
E CH (channel) indication
Shows transmitting channel.
Each time you press the SET button in
Transmitting mode, the channel
indication changes as follows.
Display section
1
7
Parts identification
AF LEVEL control
Adjusts the audio input level from the
audio input connector .
MIC/LINE select switch
Set this switch to MIC when a
microphone is connected to the audio
input connector; set it to LINE when
an audio mixer, etc. is connected to the
audio input connector.
For details, on the use of this switch,
see “Adjusting the Audio Input Level.”
Before changing to the MIC position
from LINE position, be sure to turn the
unit off to avoid a noise when the
+48V power supply is turned on, or
adding high output level audio signal.
AF/PEAK indicator
The green or red color indicates the
strength of the audio input signal level.
+48V indicator
The indicator shows the +48V power
supply is enable when MIC/LINE
switch is in MIC position.
Battery lid
Slide the battery lid to release the lock
and open the battery compartment.
8
6
9
7
10
Note
8
Power Supply
Battery indication
When you turn the power on, the battery condition is shown by the BATT indication
in the display section.
When the indication in column 4 starts to flash, replace the batteries with new one.
Be sure to check the expiration date printed on the new battery before using it.
The indicated battery condition may not be correct if the battery was not new when
installed. If you plan to use the component for a long period, it is recommended that
you replace the battery with brand new one.
Notes on battery
Battery may leak or explode if mistreated. Be sure to follow these instructions.
• Be sure to install the battery with the correct polarity.
• The battery are not rechargeable.
• When not using the component for a long period of time, remove the battery to
avoid leakage. If the battery dose leak, clean all leakage from the battery
compartment and the component. Leakage left in the compartment and the component
may cause poor battery contact. If there seems to be poor battery contact, consult your
Sony dealer.
NOTE
WRT-8P can be powered by one 6LR61 (9V) alkaline battery for about five hours of
continuous operation (at 25°C, 77°F) .
The battery condition Indication are given below:
Inserting the battery
1Slide the battery lid to release the lock
and open the battery compartment.
2Align one new 6LR61 (9V) alkaline
battery with the polarity markings and
insert them into the battery compartment,
and then close the cover.
9
Settings
NOTE Initiating Setting Mode
In Setting mode, you can change the
transmission channel/frequency and
the RF output power level, or +48V
power supply.
To Enter Setting Mode
While holding down the SET button,
set the POWER switch to ON.
The transmitter enters Setting mode
and the indication before the
transmitter was previously turned
OFF flashes on the display section.
Each time you press the SET button,
the setting items are cyclically
switched as shown below.
• The transmitter cannot transmit in
Setting mode.
• Make sure that the channel selected
on the transmitter is the same as
that selected on the tuner being
used in the same system.
• Depending on the noise or
interference conditions, all
selectable channels may not be
usable. If necessary, you can
determine which channels are
usable by cycling the channel
selection through a number of
channels on the tuner with the unit
set to OFF. Those channels for
which the RF indicator on the tuner
does not light are usable.
• If there is a TV broadcasting station
near by, do not use the station’s
channel.
• The transmitter may not operate
correctly if it is turned on
immediately after being turned off
in Setting mode. Wait for a few
seconds before turning the power
on again.
• The channel numbers and
frequencies of your transmitter are
shown on the “Sony Wireless
Microphone System Frequency
List” supplied with the manual.
MIC or LINE
10
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