Sony Group RM215 RF Remote Module User Manual
Sony Corporation RF Remote Module
Contents
- 1. Users Manual
 - 2. Manual
 - 3. User manual
 - 4. User Manual
 
Users Manual

Digital Wireless 
Transmitter
3-873-945-11 (1)
Operating Instructions
DWT-B01
©2008 Sony Corporation
The supplied CD-ROM includes the Operating Instructions for the DWT-B01 
digital wireless transmitter (English, French, German, Italian, and Spanish 
versions). For more details, see “Using the CD-ROM manual” on page 11.

2
WARNING
Batteries shall not be exposed to excessive 
heat such as sunshine, fire or the like.
You are cautioned that any changes or 
modifications not expressly approved in 
this manual could void your authority to 
operate this equipment.
For the customers in the U.S.A.
This device complies with part 15 of the 
FCC Rules. Operation is subject to the 
following two conditions: (1) this device 
may not cause harmful interference, and (2) 
this device must accept any interference 
received, including interference that may 
cause undesired operation.
Important Notice
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).
Notice for customers in the 
U.S.A.
Use of Sony wireless devices is regulated 
by the Federal Communications 
Commision as described in Part 74 subpart 
H of the FCC regulations and users 
authorized thereby are required to obtain an 
appropriate license.
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 device complies with FCC radiation 
exposure limits set forth for uncontrolled 
equipment and meets the FCC radio 
frequency (RF) Exposure Guidelines in 
Supplement C to OET65. This device has 
very low levels of RF energy that it is 
deemed to comply without testing of 
specific absorption radio (SAR).
For the customers in Canada
Operation 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.
To reduce potential radio interference to 
other users, the antenna type and its gain 
should be so chosen that the equivalent 
isotropically radiated power (EIRP) is not 
more than that required for successful 
communication.
This device has been designed to operate 
with an antenna having a maximum gain of 
0 dB.
Antenna having a higher gain is strictly 
prohibited per regulations of Industry 
Canada. 
The required antenna impedance is 50 
ohms.
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, 
noprotection basis with respect to broadcast 
signals.
AVERTISSEMENT
N’exposez pas les batteries à une chaleur 
excessive, au soleil ou près d’un feu par 
exemple.

3
Pour les utilisateurs au Canada
L’utilisation doit répondre aux deux 
conditions suivantes : (1) ce matériel ne doit 
pas provoquer de brouillage et (2) il doit 
accepter tout brouillage, même celui qui est 
susceptible d’affecter son fonctionnement.
La mention « IC: » devant le numéro de 
certification/ homologation signifie 
uniquement que les spécifications 
techniques d’Industrie Canada sont 
remplies.
R-13_FRXXXTo reduce potential radio 
interference to other users, the antenna type 
and its gain should be so chosen that the 
equivalent isotropically radiated power 
(EIRP) is not more than that required for 
successful communication.XXX
R-14_FRXXXThis device has been 
designed to operate with an antenna having 
a maximum gain of 0 dB.
Antenna having a higher gain is strictly 
prohibited per regulations of Industry 
Canada. 
The required antenna impedance is 50 
ohms.XXX
Remarque à l’intention des 
utilisateurs au Canada:
L’usage des appareils sans fil Sony est 
réglementé 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 le fonctionnement de 
l’appareil respecte les limites de la bande de 
radiodiffusion, la licence est accordée sur la 
base d’une non-interférence, non-
protection pour les signaux de 
radiodiffusion.
WARNUNG
Akkus dürfen keinesfalls übermäßiger 
Wärmeeinwirkung ausgesetzt werden, wie 
z.B. Sonneneinstrahlung, Feuer o. ä.
AVVERTENZA
Le batterie non devono essere esposte a 
fonti di calore eccessivo come luce solare 
diretta, fuoco, ecc.
ADVERTENCIA
No se deben exponer las baterÌas a una 
fuente de calor excesivo como la luz del sol, 
el fuego o similar.
For the customers in Europe
Hereby, Sony Corporation, declares that 
this DWT-B01 is in compliance with the 
essential requirements and other relevant 
provisions of the Directive 1999/5/EC. 
For details, please access the following 
URL: http://www.compliance.sony.de/
This product is intended to be used in the 
following countries : United Kingdom, 
Germany, Norway, Luxembourg, Belgium, 
Denmark, France, Italy, Sweden, 
Switzerland, Finland, Iceland, and Turkey.
Note for the users in Spain
Carrier frequencies only allowed 2421, 
2449, 2477MHz in Spain.
Pour les clients en Europe
Par la présente Sony Corporation déclare 
que l'appareil DWT-B01 est conforme aux 
U.K. 470 - 862 MHz
Germany 470 - 606 MHz, 614 - 
862 MHz
Norway 800 - 820 MHz
Luxembourg 470 - 862 MHz
Belgium 470 - 862 MHz
Denmark 800.100 - 819.900 MHz
France 470 - 830 MHz
Italy 470 - 854 MHz
Sweden 470 - 862 MHz
Switzerland 790 - 862 MHz
Finland 790.100 - 821.900 MHz, 
854 - 862 MHz
Iceland 470 - 862 MHz
Turkey 470 - 862 MHz

11
Using the CD-ROM manual
Using the CD-
ROM manual
The supplied CD-ROM includes Operating 
Instructions for the DWT-B01 (English, 
French, German, Italian, and Spanish 
versions) and the frequency lists (English 
and Japanese versions).
Preparations
The following program must be installed on 
your computer in order to read the 
Operating Instructions contained on the 
CD-ROM.
• Adobe Reader Version 6.0 or higher
If Adobe Reader is not installed, you can 
download it from the following URL:
http://www.adobe.com/
Adobe and Adobe Reader are trademarks of 
Adobe Systems Incorporated in the United States 
and/or other countries.
Reading the CD-ROM 
manual
To read the operation manuals contained on 
the CD-ROM, do the following.
1Insert the CD-ROM in your CD-ROM 
drive.
A cover page appears automatically in 
your browser.
If it does not appear automatically in 
the browser, double-click on the 
index.htm file on the CD-ROM.
2Select and click on the Operating 
Instructions that you want to read.
This opens the PDF file of the 
operation manuals.
The files may not be displayed properly, 
depending on the version of Acrobat 
Reader. In such a case, install the latest 
version you can download from the URL 
mentioned in “Preparations”  above.
If you have lost or damaged the CD-ROM, 
you can purchase a new one to replace it. 
Contact your Sony service representative.
Reading the Sony Digital 
Wireless Microphone 
System Frequency Lists
The frequency lists for US and European 
models are contained on the CD-ROM. To 
read the frequency lists, do the following:
1Insert the CD-ROM in your CD-ROM 
drive.
A cover page appears automatically in 
your browser.
2Select and click on the frequency list 
that you want to read.
This opens the PDF file of the 
frequency list.
Note

12 Parts identification
Parts
identification
aAntenna
b AF (audio input level) /PEAK 
indicator
Lights up green when the signal input is 
stronger than the reference level.     
Lights up red when the signal input is 3 dB 
below the level at which distortion begins. 
cPOWER indicator
Lights up green when the transmitter is 
turned on. When the battery is exhausted, 
the indicator starts flashing.
dAudio input connector (SMC9-4S)
Connects the output plug from the optional 
lavalier microphone.
This connector also accepts the input from 
another wired microphone connected 
through the supplied microphone cable, or 
the audio output from a mixer, etc.
To connect a microphone
e + or – button
Selects functions or values shown on the 
display.
Holding down the – button while switching 
on the transmitter activates the pairing 
operation for the wireless remote control 
function.
fPOWER switch
Turns the transmitter ON or OFF.
gBattery compartment
Accommodates two LR6 (size AA) alkaline 
batteries.
For details on how to insert the batteries, see 
“Power supply” on page 14.
hSET button
Adjusts displayed function settings and 
enters the value.
Holding down the SET button while 
switching on the power turns the transmitter 
on without sending a signal.
iUSB connector (Micro USB)
Use this connector to connect an optional 
USB keyboard to carry out menu functions 
Microphone (optional)
To secure the microphone cable 
connection, be sure to turn and lock 
the connector cover.

13
Parts identification
using key operations. By connecting the 
digital wireless receiver to this connector 
with the supplied USB cable, you can 
exchange the encryption key for encrypted 
transmission function.
jDisplay section
ARF transmission indication
Indicates the current transmission status.
; Currently transmitting
—: Transmission stopped
BRF (radio frequency) transmission 
power indication
Indicates the current transmission power 
setting. You can change the setting with the 
RF transmission power setting function.
H: transmitting at 50 mW
M: transmitting at 10 mW
L: transmitting at 1 mW
CAudio input level meter
Indicates the input signal level of the audio 
input connector
DReference level gage
Indicates the reference input level. When 
the attenuation is 0 dB with the input level 
set to “mic”, –58 dBu (–60 dBV) is 
indicated. When the line level is set, +4 dBu 
is indicated.
EPeak indicator
Warns of excessive input by lighting up 
when the signal is 3 dB below the level at 
which distortion begins.
FPower switch lock indicator
Indicates that the power switch is locked, 
preventing the transmitter from being 
accidentally turned off or on.
For details, see “Locking the power switch (POWER 
SW LOCK)” on page 24.
GWireless remote control condition 
indication
Indicates the signal transmission condition 
of the wireless remote control function (4 
levels).
: Good transmission
: Somewhat good transmission
: Somewhat poor transmission
: Poor transmission
: Unable to communicate with paired 
receiver
When the wireless remote control function 
is off, this indication does not appear.
HBattery indication
Shows the battery condition.
For details, see “Battery indication” on page 14.
IMenu display section
The status of 15 different functions are 
displayed here. To select the function, press 
the + or – button repeatedly.
For details, See “Setting menus” on page 21.

14 Power supply
Power supply
The transmitter can operate on two LR6 
(size AA) alkaline batteries continuously 
for about 3.5 hours at 25°C (77°F).
Installing the batteries
1Squeeze the battery-holder tabs inward 
(in the direction of the arrows) and 
slide out the battery holder.
2Insert new batteries, making sure the 
polarities are correct, and then return 
the battery holder to its original 
position.
Battery indication
The power status is indicated by eight level 
indications. 
Replace both batteries when the battery 
indication starts to flash.
Be sure to check the expiration date printed 
date on the new batteries before using them.
The indication is based on the use of new 
LR6 (size AA) Sony Alkaline batteries. An 
incorrect indication may result when a 
different kind of batteries, a different brand 
of batteries or old batteries are used. If you 
plan to use the transmitter for a long period 
of time, it is recommended that you replace 
the batteries with brand new ones.
Note

30 Important notes on operation
Important notes 
on operation
Notes on using the 
transmitter
• The digital wireless microphone system 
product must be used within a 
temperature range of 0°C to 50°C (32°F 
to 122°F).
• Operating the transmitter near electrical 
equipment (motors, transformers, or 
dimmers) may cause it to be affected by 
electromagnetic induction. Keep the 
transmitter as far from such equipment as 
possible.
• The presence of the lighting equipment 
may produce electrical interference over 
the entire frequency range. Position the 
transmitter so that interference is 
minimized.
• To avoid degradation of the signal-to-
noise ratio, do not use the transmitter in 
noisy places or in locations subject to 
vibration, such as the following:
- near electrical equipment, such as 
motors, transformers or dimmers
- near air conditioning equipment or 
places subject to direct air flow from 
an air conditioner
- near public address loudspeakers
- where adjacent equipment might 
knock against the tuner
Keep the transmitter as far from such 
equipment as possible or use buffering 
material.
On cleaning
• If the transmitter 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 transmitter 
in such places or not cleaning it after its 
use in such places may shorten its life.
• Clean the surface and the connectors of 
the transmitter with a dry, soft cloth. 
Never use thinner, benzene, alcohol or 
any other chemicals, since these may mar 
the finish.
To prevent electromagnetic 
interference from portable 
communication devices
The use of portable telephones and 
other communication devices near 
the DWT-B01 may result in 
malfunction and interference with 
audio signals. It is recommended that 
portable communication devices near 
the DWT-B01 be turned off.

31
Specifications
Specifications
Transmitting section
Oscillator type
Crystal-controlled PLL synthesizer
Carrier frequencies
US models: 
U3040: 566 to 607 MHz (TV-30 to 
TV-36 channels); 
615 to 638 MHz (TV-38 to TV-
41 channels)
U4250: 638 to 698 MHz (TV-42 to 
TV-51 channels)
European model: 
CE6267: 798 to 822 MHz (TV-62 
to TV-64 channels); 
838 to 862 MHz (TV-67 to TV-
69 channels)
Channel step
US models: 
U3040/U4250: 125 kHz
European model: 
CE6267: 25 kHz
RF power output
1 mW/10 mW/50 mW (e.r.p) 
selectable
Antenna type
λ/4 flexible wire
Occupied RF bandwidth
192 kHz or less
Audio delay
1.5 ms
Transmission frequency stability level
±6.5 ppm
Type of emission
G1E or G1D
Modulation method
π/4 Shift QPSK
Audio section
Maximum input level
MIC: –22 dBu (with 0 dB 
attenuator)
LINE: +24 dBu
Audio attenuator adjustment range (pad) 
0 to 48 dB (3dB steps, MIC input 
mode only)

32 Specifications
Microphone input connector
Sony 4-pin (SMC9-4S) (female) (1)
Input impedance
4.7 kohms or more, 0 dBu = 0.775 
V
Frequency response
20 Hz to 22 kHz
T.H.D 0.03% or less
Type of emission
G1E or G1D
 Dynamic range
106 dB or more
General
Operating voltage
3 V DC, with two LR6 (AA) 
alkaline batteries
Battery life
Continuous operating time 
3.5 hours (at 25 °C (77 °F), 10-mW 
output using Sony LR6 (AA)-
size alkaline batteries with the 
wireless remote control 
function off and the display set 
to AUTO OFF)
Operating temperature
0 to 50 °C (32 to 122 °F)
Storage temperature
–20 to +60 °C (–4 to +140 °F)
Wireless remote control
2.4-GHz 1EEE802.15.4 compliant
Dimensions
Approx. 63 x 73 x 17 mm 
(2 1/2 x 2 7/8 x 11/16 inches) (W 
x H x D) excluding projection
Mass Approx. 125 g (4 oz) including 
batteries
Supplied accessories
Spare battery case (1)
Soft case (1)
Microphone cable (4-pin to XLR-
type 3-pin) (1)
USB adapter cable (1) 
USB cable (1)
Carrying case (1)
Operating Instructions (1)
CD-ROM (Operating Instructions 
and Sony Digital Wireless 
Microphone System Frequency 
Lists included) (1)
* CE7 model: 169
3040U model: 206
4250U model: 188
Unit: mm

33
Specifications
Optional accessories
ECM-/77BC/9X lavalier 
microphones
Design and specifications are subject to 
change without notice.
Note
Always verify that the unit is operating 
properly before use. SONY WILL NOT 
BE LIABLE FOR DAMAGES OF ANY 
KIND INCLUDING, BUT NOT 
LIMITED TO, COMPENSATION OR 
REIMBURSEMENT ON ACCOUNT 
OF THE LOSS OF PRESENT OR 
PROSPECTIVE PROFITS DUE TO 
FAILURE OF THIS UNIT, EITHER 
DURING THE WARRANTY PERIOD 
OR AFTER EXPIRATION OF THE 
WARRANTY, OR FOR ANY OTHER 
REASON WHATSOEVER.

This model has an RF module of the FCC/IC approval built-in. 
BUILT IN MODULE    RM-215 
FCC ID: AK8RM215 
IC: 409B-RM215