Sony WRT-847B User manual

UHF SynthesizedTransmitter Unit
WRT-847B
Capsule Units
CU-F780/G780/E700/E672/F117
SON44640_WRT-847B 9/27/00 2:55 PM Page 1

Since its introduction, the unique qualities of the Sony 800 Series UHF Wireless
Microphone System have been proved in many different applications. It has been
particularly successful in quality-critical applications such as broadcasting and
productions, where its attributes of wide audio dynamic range, low noise, stable RF
transmission and reception, and high reliability have been vital factors.
Building on this success, Sony now introduces an addition to the 800 Series UHF Wireless
Microphone family — the newly-developed WRT-847 UHF Synthesized Transmitter Unit together
with a range of five interchangeable microphone capsules. These five types of optional capsules
enable the WRT-847 to cover a very wide range of applications. The
CU-F780, CU-G780 and CU-E700 capsules are designed for vocal and
speech applications in broadcasting, live music performances and
concert halls, while the CU-E672 and CU-F117 options are suitable for
interviews in news gathering and field productions.
The WRT-847 UHF Synthesized Transmitter Unit is fully compatible
with existing Sony receiving systems, allowing flexible simultaneous
multi-channel operation.
WRT-847 — UHF Synthesized Transmitter Unit
■The WRR-847B model operates over a 24 MHz
frequency band between 470 MHz and 806 MHz
(UC). The operating frequency of the WRR-847B
specifically accommodates the re-allocation of
wireless operation frequency band due to the advent
of Digital TV broadcasting.
■Five optional microphone capsules are available,
providing a choice of characteristics that suit a range
of different applications. Microphone capsules are
available individually. (One head is required for the
WRT-847 to function.)
■Audio compander time constant (TC) switchable
between short and long to suit capsule application.
■Selectable RF output level: 10 mW for multi-channel
operation and 50 mW for long working distance.
■Audio gain and attenuation setting from +9 dB to
-12 dB in 3 dB steps.
■Lockable power switch to avoid accidental power off.
■Easy-to-read LCD with back light indicates extensive
information on operating conditions such as channel
number, wireless channel frequency in MHz, audio
input level, compander time constant, battery status
and accumulated battery operating time.
■Battery status information is transmitted to the
receiver and shown on an LCD*
2
for additional
assurance of continuous operation.
■Approximate Height*
3
hours of continuous operation
is provided by two AA-size (LR6) alkaline batteries.
WRT-847B
UC: 470 MHz to 806 MHz, TV channels 14 to 69
(14 frequency bands, divided into 24 MHz range. All 14 frequency bands may not be available in some areas.)
For details, please consult your nearest Sony office.
*2 Available only on the WRR-802/WRU-806/WRR-805/WRR-862.
*3 Operating at 10 mW RF output level.
SON44640_WRT-847B 9/27/00 2:56 PM Page 2

CU-F117
■Omni-directional dynamic microphone capsule.
■Superb rejection of wind noise and popping.
■Designed for interview applications.
Frequency response: 50 Hz to 15 kHz
Directivity: Omni-directional
Dimensions: ø44 x 105 mm (ø13/4x 4 1/4inches)
Mass: 170 g (6.0 oz)
Supplied Accessory: Urethane wind screen (x 1)
CU-E672
■Hyper cardioid electret condenser microphone capsule
■A wide variety of applications in news-gathering, sports events and interviews.
■The supplied wind screen reduces wind noise and popping.
Frequency response: 50 Hz to 16 kHz
Directivity: Uni-directional (hyper cardioid)
Maximum SPL: 120 dB
Dimensions: ø37 x 172 mm (ø11/2x 6 7/8inches)
Mass: 150 g (5.3 oz)
Supplied Accessory: Urethane wind screen (x 1)
CU-E700
■Electret condenser microphone capsule with super cardioid polar pattern.
■Smooth frequency response for natural sound re-production.
■Suitable for vocal and speech applications in broadcasting,
live musical performances and concert halls.
Frequency response: 50 Hz to 18 kHz
Directivity: Uni-directional (super cardioid)
Maximum SPL: 150 dB
Dimensions: ø51 x 98 mm (ø21/8x 3 7/8inches)
Mass: 170 g (6.0 oz)
CU-G780
■Dynamic microphone capsule with super cardioid polar pattern.
■Uses the same high quality edgewise winding CCAW (Copper Clad Aluminium Wire)
voice coil which is employed in the Sony F-780 wired dynamic microphone.
■Special design considerations, based on the capsule of Sony F-780 microphone,
in order to cope with High SPL (Sound Pressure Level) vocals and
incorporate outstanding feedback rejection.
■Designed for vocal use over a wide range of applications,
from broadcasting to live music performances and concert halls.
Frequency response: 50 Hz to 20 kHz
Directivity: Uni-directional (super cardioid)
Dimensions: ø51 x 90 mm (ø21/8x 3 5/8inches)
Mass: 180 g (6.3 oz)
CU-F780
■Dynamic microphone capsule with super cardioid polar pattern.
■Uses the same high quality edgewise winding CCAW (Copper Clad Aluminium Wire)
voice coil which is employed in the Sony F-780 wired dynamic microphone.
■Designed for vocal and speech use over a wide range of applications, from
broadcasting to live music performances and concert halls.
Frequency response: 50 Hz to 18 kHz
Directivity: Uni-directional (super cardioid)
Dimensions: ø51 x 90 mm (ø21/8x 3 5/8inches)
Mass: 180 g (6.3 oz)
Microphone Capsule Units for the WRT-847
Response (dB)
Frequency (Hz)
Uni-directional
100 Hz
1 kHz
6 kHz
0°
90°
180°
Response (dB)
Frequency (Hz)
Uni-directional
200 Hz
1 kHz
5 kHz
0°
90°
180°
Response (dB)
Frequency (Hz)
Omni-directional
100 Hz/1 kHz
6 kHz
Response (dB)
Frequency (Hz)
Uni-directional
100 Hz
1 kHz
6 kHz
0°
90°
180°
0°
90°
180°
Frequency (Hz)
250 Hz
1 kHz
4 kHz
0°
90°
180°
Uni-directional
Response (dB)
SON44640_WRT-847B 9/27/00 2:57 PM Page 3

Oscillator: Crystal controlled PLL synthesizer
Type of emission: F3E
Carrier Frequencies:
WRT-847B UC: 470 to 806 MHz (Selectable 24 MHz frequency band from 470 MHz to 806 MHz)
RF power output: 10 mW/50 mW selectable (50 Ωload)
Tone signal: 32.768 kHz
Type of antenna: 1/4 wave length whip
Pre-emphasis: 50 µs
Frequency response: 50 Hz to 15 kHz
System dynamic range: 96 dB or more (101 dB typical)
Headroom: 36 dB at ±5 kHz deviation at 1 kHz modulation
Signal to noise ratio: 60 dB or more (A-weighted, modulation frequency 1kHz, with ±5 kHz deviation.)
Audio gain control: -12/-9/-6/-3/0/3/6/9 dB (in 3 dB steps)
Max. input level: -7 dBV (at audio gain -12 dB)
Max. input sound pressure level: 142 dB SPL* (with CU-F780/G780/E700/F117 at audio gain -12 dB)
120 dB SPL* (with CU-E672)
Power requirements: DC 3.0 V (two LR6 AA-size alkaline batteries)
Battery life: Approx. 8 hours at 25°C (77°F) with Sony LR6 alkaline batteries, at 10 mW RF output
Dimensions: ø37 x 150 mm (ø1 1/2x 6 inches) without two antennas
Mass: Approx. 150 g (0.3 oz) without batteries
Supplied accessories: Microphone holder (x 1), Channel color seal (x 1), Soft case (x 1),
Stand adaptor (AU & CE: PF1/2 to W3/8 type, UC: PF1/2 to W5/8 type)
*dB SPL= 2 x 10-5 Pa
Printed in USA 09/00
A-1067
MK7533V1OHB00SEP
Distributed by Use of Sony wireless devices in the United States of America is regulated by the Federal
Communications Comission as described in Part 15 and 74 of the FCC regulation and
users authorized thereby are required to obtain an appropriate license.
© 2000 Sony Corporation. All rights reserved. Reproduction in whole or in part without
written permission is prohibited. Features and specifications are subject to change
without notice. All non-metric weights and measures are approximate.
Sony is a registered trademark of Sony Corporation.
All other trademarks are the property of their respective owners.
WRT-847A/847B Specifications
Sony Electronics Inc.
One Sony Drive
Park Ridge,NJ 07656
www.sony.com/proaudio
(14 frequency bands, divided into 24 MHz range. All 14 frequency bands may not be available in some areas.)
For details, please consult your nearest Sony office.
WRT-847A/847B Specifications
SON44640_WRT-847B 9/27/00 2:57 PM Page 4