Sony WRT-860A User manual

3-756-954-22(1)
WRT-860A
Model:
Operating Instructions page 2
Before operating the unit, please read this manual thoroughly
and retain it for future reference.
Manual de instrucciones página 19
Antes de utilizar la unidad, lea detenidamente este manual de
instrucciones, y consérvelo para futuras referencias.
1995 by Sony Corporation
UHF Synthesized Transmitter

2
Owner’s Record
The model and serial numbers are located at the rear of the
unit. Record the serial number in the space provided below.
Refer to these numbers whenever you call upon your Sony
dealer regarding this product.
Model No. WRT-860A 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 licence.
You are cautioned that any changes or modifications not
expressly approved in this manual could void your authority
to operate this equipment.
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 licence 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
licence is issued on no-interference, no-protection basis with
respect to broadcast signals.
Avis pour les clients au Canada:
L’usage des appareils sans-fil Sony est réglé par l’Industrie
Canada comme décrit dans leur Cahier des Normes
Radioélectriques CNR-123. Une licence est normalement
requise. Le bureau de l’Industrie Canada doit être contacté.
Lorsque l’opération de l’appareil est dans les limites de la
bande de radiodiffusion, la licence est émanée sur la base
de non-interférence, non-protection avec les signaux de
radiodiffusion.
English

3
Precautions....................................................................... 3
Introduction ..................................................................... 4
Features ............................................................................ 5
Channels and Carrier Frequencies ................................ 6
Parts Identification .......................................................... 9
Power Supply ................................................................. 11
Connection...................................................................... 12
Operation........................................................................ 13
Changing the Channel Selection................................ 13
Changing the Input Attenuation Setting .................... 15
Notes on Microphone System Operation................... 16
Accumulated Time Indication ................................... 17
Error Messages .............................................................. 17
Specifications.................................................................. 18
•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
Table of Contents

4
Frequency band Model name
TV
channel Frequency (MHz) Transmitter or microphone Tuner
64 770.125 - 775.875 WRT-810A (64)
WRT-820A (64)
WRT-860A (64)
WRR-810A (64)
WRR-820A (64)
WRR-840A (64)
WRR-850A (64)
65 776.125 - 781.875
66 782.125 - 787.875 WRT-810A (66)
WRT-820A (66)
WRT-860A (66)
WRR-810A (66)
WRR-820A (66)
WRR-840A (66)
WRR-850A (66)
67 788.125 - 793.875
68 794.125 - 799.875 WRT-810A (68)
WRT-820A (68)
WRT-830A (68)
WRT-860A (68)
WRT-867A (68)
WRR-810A (68)
WRR-820A (68)
WRR-840A (68)
WRR-850A (68)
WRR-860A (68)
69 800.125 - 805.875
The WRT-860A is a transmitter for an 800 MHz band UHF
synthesized wireless microphone system to be used for
broadcast or movie production purpose.
The other system components include the WRT-810A/
830A/867A UHF Synthesized Wireless Microphone, the
WRT-820A UHF Synthesized Transmitter, the AN-820A
UHF Antenna, the WD-820A/880A UHF Antenna Divider,
the WRR-810A UHF Synthesized Tuner, the WRR-820A/
840A/850A/860A UHF Synthesized Diversity Tuner.
The microphones/transmitters and tuners are classified by
frequency band. See the table to the right.
A 12 MHz frequency band (or two consecutive numbered
TV channels) is assigned to each microphone/transmitter
and tuner model. To indicate the assigned frequency bands,
the parenthesized numbers following the model names in
the table show the smaller of the assigned TV channel
numbers.
Introduction
Sony 800 MHz band system models
a)
a)
a)
a)
a)
a)
a)
a)
a)
a) For these models, the AN-820A UHF Antenna is required. Use the
WD-820A/880A UHF Antenna Divider in addition when required.

5
Features
CPU and LCD for coordinated operation control
The built-in CPU controls operation of the unit, including
the PLL circuit function. The LCD shows the current
channel number, the residual battery power, input
attenuation setting, AF input level and RF output.
An accumulated operation time indication is also provided
for simple control of the time of battery use (in 1-minute
increments).
Saved channel and input attenuation settings
The unit stores the channel and the input attenuation setting
when it is turned off. The saved settings are retained even
if the batteries are removed. Therefore, when using the unit
next time, you need not make the same settings again.
Highly reliable electronic attenuator
The built-in input level attenuator is adjustable in a range of
0 to 30 dB in 3-dB steps. It reduces signal distortion when
an excessively strong input signal is received.
RF carrier with tone signal
The unit transmits the RF carrier accompanied by a tone
signal, enabling the tuner with a tone squelch circuit to take
out only the target audio signal received.
Wide dynamic range and low noise
The compander (compressor/expander) system enables
transmission over a wide dynamic range with minimum
noise.
Easy selection of 94 channels
With its sophisticated phase locked loop (PLL) circuit, the
unit can operate on any one of 94 carrier frequencies
selected by a simple button operation.
Compact and lightweight
Innovative, high-density mounting technology has enabled
the creation of this compact and lightweight transmitter,
which lets you move anywhere for Electronic News
Gathering (ENG) and Electronic Field Production (EFP).
Battery status information
This transmitter has capability of transmitting “Battery
status information” to the WRR-850A.
The information is sent to the WRR-850A in approx. 1 hour
advance to battery exhaust so that they can safely replace
batteries of the transmitter.
When the WRR-850A receives the information, the LED
and the LCD on the panel start flashes.
Operation powered by easily available batteries
The built-in DC-DC converter allows stable operation, for
about 6 hours continuously, with just two LR6 (size AA)
alkaline batteries.

6
The WRT-860A can transmit on any selected wireless
channel among those listed below. For channel selection, see “Changing the Channel Selection” on page 13.
Channels and Carrier Frequencies
WRT-860A(68)
Channel Frequency (MHz)
TV-68 Band Channel Frequency (MHz) TV-68 Band Channel Frequency (MHz) TV-69 Band Channel Frequency (MHz) TV-69 Band
68-01 794.125 68-25 797.125 69-01 800.125 69-25 803.125
68-02 794.250 68-26 797.250 69-02 800.250 69-26 803.250
68-03 794.375 68-27 797.375 69-03 800.375 69-27 803.375
68-04 794.500 68-28 797.500 69-04 800.500 69-28 803.500
68-05 794.625 68-29 797.625 69-05 800.625 69-29 803.625
68-06 794.750 68-30 797.750 69-06 800.750 69-30 803.750
68-07 794.875 68-31 797.875 69-07 800.875 69-31 803.875
68-08 795.000 68-32 798.000 69-08 801.000 69-32 804.000
68-09 795.125 68-33 798.125 69-09 801.125 69-33 804.125
68-10 795.250 68-34 798.250 69-10 801.250 69-34 804.250
68-11 795.375 68-35 798.375 69-11 801.375 69-35 804.375
68-12 795.500 68-36 798.500 69-12 801.500 69-36 804.500
68-13 795.625 68-37 798.625 69-13 801.625 69-37 804.625
68-14 795.750 68-38 798.750 69-14 801.750 69-38 804.750
68-15 795.875 68-39 798.875 69-15 801.875 69-39 804.875
68-16 796.000 68-40 799.000 69-16 802.000 69-40 805.000
68-17 796.125 68-41 799.125 69-17 802.125 69-41 805.125
68-18 796.250 68-42 799.250 69-18 802.250 69-42 805.250
68-19 796.375 68-43 799.375 69-19 802.375 69-43 805.375
68-20 796.500 68-44 799.500 69-20 802.500 69-44 805.500
68-21 796.625 68-45 799.625 69-21 802.625 69-45 805.625
68-22 796.750 68-46 799.750 69-22 802.750 69-46 805.750
68-23 796.875 68-47 799.875 69-23 802.875 69-47 805.875
68-24 797.000 69-24 803.000

7
WRT-860A(66)
Channel Frequency (MHz)
TV-66 Band Channel Frequency (MHz) TV-66 Band Channel Frequency (MHz) TV-67 Band Channel Frequency (MHz) TV-67 Band
66-01 782.125 66-25 785.125 67-01 788.125 67-25 791.125
66-02 782.250 66-26 785.250 67-02 788.250 67-26 791.250
66-03 782.375 66-27 785.375 67-03 788.375 67-27 791.375
66-04 782.500 66-28 785.500 67-04 788.500 67-28 791.500
66-05 782.625 66-29 785.625 67-05 788.625 67-29 791.625
66-06 782.750 66-30 785.750 67-06 788.750 67-30 791.750
66-07 782.875 66-31 785.875 67-07 788.875 67-31 791.875
66-08 783.000 66-32 786.000 67-08 789.000 67-32 792.000
66-09 783.125 66-33 786.125 67-09 789.125 67-33 792.125
66-10 783.250 66-34 786.250 67-10 789.250 67-34 792.250
66-11 783.375 66-35 786.375 67-11 789.375 67-35 792.375
66-12 783.500 66-36 786.500 67-12 789.500 67-36 792.500
66-13 783.625 66-37 786.625 67-13 789.625 67-37 792.625
66-14 783.750 66-38 786.750 67-14 789.750 67-38 792.750
66-15 783.875 66-39 786.875 67-15 789.875 67-39 792.875
66-16 784.000 66-40 787.000 67-16 790.000 67-40 793.000
66-17 784.125 66-41 787.125 67-17 790.125 67-41 793.125
66-18 784.250 66-42 787.250 67-18 790.250 67-42 793.250
66-19 784.375 66-43 787.375 67-19 790.375 67-43 793.375
66-20 784.500 66-44 787.500 67-20 790.500 67-44 793.500
66-21 784.625 66-45 787.625 67-21 790.625 67-45 793.625
66-22 784.750 66-46 787.750 67-22 790.750 67-46 793.750
66-23 784.875 66-47 787.875 67-23 790.875 67-47 793.875
66-24 785.000 67-24 791.000

8
Channel Frequency (MHz)
TV-64 Band Channel Frequency (MHz) TV-64 Band Channel Frequency (MHz) TV-65 Band Channel Frequency (MHz) TV-65 Band
64-01 770.125 64-25 773.125 65-01 776.125 65-25 779.125
64-02 770.250 64-26 773.250 65-02 776.250 65-26 779.250
64-03 770.375 64-27 773.375 65-03 776.375 65-27 779.375
64-04 770.500 64-28 773.500 65-04 776.500 65-28 779.500
64-05 770.625 64-29 773.625 65-05 776.625 65-29 779.625
64-06 770.750 64-30 773.750 65-06 776.750 65-30 779.750
64-07 770.875 64-31 773.875 65-07 776.875 65-31 779.875
64-08 771.000 64-32 774.000 65-08 777.000 65-32 780.000
64-09 771.125 64-33 774.125 65-09 777.125 65-33 780.125
64-10 771.250 64-34 774.250 65-10 777.250 65-34 780.250
64-11 771.375 64-35 774.375 65-11 777.375 65-35 780.375
64-12 771.500 64-36 774.500 65-12 777.500 65-36 780.500
64-13 771.625 64-37 774.625 65-13 777.625 65-37 780.625
64-14 771.750 64-38 774.750 65-14 777.750 65-38 780.750
64-15 771.875 64-39 774.875 65-15 777.875 65-39 780.875
64-16 772.000 64-40 775.000 65-16 778.000 65-40 781.000
64-17 772.125 64-41 775.125 65-17 778.125 65-41 781.125
64-18 772.250 64-42 775.250 65-18 778.250 65-42 781.250
64-19 772.375 64-43 775.375 65-19 778.375 65-43 781.375
64-20 772.500 64-44 775.500 65-20 778.500 65-44 781.500
64-21 772.625 64-45 775.625 65-21 778.625 65-45 781.625
64-22 772.750 64-46 775.750 65-22 778.750 65-46 781.750
64-23 772.875 64-47 775.875 65-23 778.875 65-47 781.875
64-24 773.000 65-24 779.000
WRT-860A(64)
Channels and Carrier Frequencies

9
Parts Identification
When you mount the transmitter in the supplied soft case,
you can easily fix it to your clothing on your belt, etc. with
the clip of the case. If it is more convenient to fix the unit
with the antenna downwards, mount the transmitter in the
case upside-down.
Location of parts
1Liquid-crystal display
The back light lights for 5 seconds when you set the
POWER switch to ON.
aAF (audio input) indication
Lights when an audio signal over the reference level is
being supplied.
bRF (antenna output) indication
Lights when a signal is being transmitted from the antenna.
cBATT (battery) indication
Displays the status of the batteries.
See “Battery indication” on page 11.
dATT (input attenuation) indication
Displays the input attenuation setting in dB, which can be
changed in a range of 0 to 30 dB in 3-dB steps.
For the adjustment, see “Changing the Input Attenuation
Setting” on page 15.
S
UHF SYNTHESIZED
TUNER WRT-860
Wire antenna
4Microphone connector
6– button
5+/LIGHT button
Battery case
(See page 11.)
2SET/DISPLAY
button
3POWER switch
1Liquid-crystal
display The example shows TV 68 channel display.
AF RF BATT
ATT CH
a b c
de

10
eCH (channel) indication
Displays the transmission channel.
Each time you press the SET/DISPLAY button in normal
transmit mode, the lower half of the display changes from
the attenuator and channel indications to the frequency
indication and accumulated time-of-use indication.
Parts Identification
3POWER switch
Turns the power of the transmitter ON or OFF.
When you set this switch to ON without holding any other
button, the transmitter is set to normal transmit mode and
transmits the signal of the selected channel.
When you set this switch to ON while holding the SET/
DISPLAY button down, setting mode is initiated. No
signal is transmitted in setting mode.
For setting mode, see “Operation” on page 13.
4Microphone connector (SMC9-4S)
Connect a microphone.
2SET/DISPLAY button
In normal transmit mode, press this button to change the
indication items in the lower half of the liquid-crystal
display. Press and hold it down for at least 1 second to
change the attenuation setting in transmit mode (page 16) or
to reset the time of use (page 17).
When you set the POWER switch to ON while holding this
button down, setting mode is initiated. In setting mode,
press this button to select the item to be set.
For setting mode, see “Operation” on page 13.
Pin assignment
1: +5 V(output)
2: HOT
3: COLD
4: GND
2
3
41
1: +5 V (output)
2: HOT
3: COLD
4: GND
See “Connection” on page 12.
5+/LIGHT button
6– button
In setting mode, press these buttons to select the
transmission channel (frequency) and attenuator level.
In normal transmit mode, press the +/LIGHT button to turn
on the back light of the liquid-crystal display for
approximately 5 seconds. To turn off the back light within
5 seconds, press the +/LIGHT button again.
For setting mode, see “Operation” on page 13.
The example shows TV 68 channel display.
ATT CH
ATT CH ATT CH