Boya Audio Equipment BY-WM8 UHF Dual-Channel Wireless Microphone System User Manual WM8

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Document ID	3198714
Application ID	l+V+IKfwwJWqIOPCKisbXQ==
Document Description	User manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	110.28kB (1378532 bits)
Date Submitted	2016-11-17 00:00:00
Date Available	2016-11-17 00:00:00
Creation Date	2016-10-10 21:59:52
Producing Software	Acrobat Distiller 9.0.0 (Windows)
Document Lastmod	2016-11-13 21:50:56
Document Title	WM8说明书
Document Creator	Adobe Illustrator CS6 (Windows)
Document Author:	Jiankuai

Thanks for choosing BOYA!
Transmitter A
5. Power LED
1) The power LED glows blue when the unit is on.
2) The power LED of transmitter glows red when low power.
Transmitter B
The BOYA BY-WM8 is an UHF Dual-Channel wireless microphone system, designed
for ENG, EFP, DSLR video, and dual-Channel can work with two transmitters,
perfect for interviews as well.
The receiver and the transmitters are lightweight and simple menu to operate.
For more details about LED indicator, please refer to as following:
The BY-WM8 consists of two body-pack transmitters, a portable receiver, and their
accessories as following:
Receiver
Situation
Omni-directional lavalier
microphone (x2)
Transmitter A Transmitter B
ANT-A and
Stays blue
ANT-B Stay blue
Stays blue
ANT-A stays blue
The transmitter A and the receiver connects;
Stays blue
The transmitter B and the receiver disconnects. ANT-B light off
Stays blue
The transmitter A and the receiver disconnects; ANT-A light off;
Stays blue
ANT-B stays blue
The transmitter B and the receiver connects.
Stays blue
The transmitter and the receiver connects.
Stereo 3.5mm mini plug cable
CH-A-48
CH-B-48
XLR output cable
Microphone Holder clip (x2)
The transmitter and the receiver disconnects.
ANT-A and
ANT-B light off
Stays blue
Stays blue
6. CH (Channel) indication
Shows the transmission channel.
IMPORTANT: Both two transmitters can be used for Transmitter A or
Transmitter B.
How to exchange Transmitter A and Transmitter B, please kindy refer to Page 15.
Wind screen (x2)
7. Battery indication
Shows the battery condition
Belt clip (x2)
1. Antenna
2. Line In
3. Microphone input
Connect the supplied lavalier microphone here. Fully insert the microphone’s
3.5mm plug and make sure it clicks into place, then lock the plug.
To remove,release the locking mechanism, then pull the plug out.
BY-WM8
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4. Power/Mute button
1) Long press the power of the transmitter ON or OFF
2) Short press for muting
Shoe mount adapter
,QVWUXFWLRQ0DQXDO
8. + (+ selection)/ – (- selection) buttons
Press these buttons to set the transmission channel, or attenuation level of
the input signal.
NOTE
1.When the battery power icon is empty and blinking, the batteries are almost
out of power, and you will need to change the batteries immediately.
2.The indicated battery condition may not be correct if the batteries were not
new when installed. If you plan to use the component for a long period,
it is recommended that you replace the batteries with brand new ones.
For more details about LED indicator, please refer to as following:
Receiver
For details, please see “How to set up channel ,VOL, STEREO and MONO” on
page 14.
Receiver
Situation
9. SET button
Press to change and enter display parameters.
10
10. Belt clip
Transmitter A Transmitter B
ANT-A and
Stays blue
ANT-B Stay blue
Stays blue
ANT-A stays blue
The transmitter A and the receiver connects;
Stays blue
The transmitter B and the receiver disconnects. ANT-B light off
Stays blue
The transmitter A and the receiver disconnects; ANT-A light off;
Stays blue
ANT-B stays blue
The transmitter B and the receiver connects.
Stays blue
The transmitter and the receiver connects.
For details, please see “How to set up channel, VOL, STEREO and MONO” on
page 14.
13
For more details, please see “To remove the belt clip” on page 11.
11. 1/4” Thread
CH-48
ANT-A and
ANT-B light off
The transmitter and the receiver disconnects.
Stays blue
Stays blue
9. Monitor Connector
(3.5mm diameter stereo mini jack)
To monitor the receiver output, connect the headphones to this connector.
11
7. CH (Channel) indication
Shows the transmission channel.
NOTE
8. Battery indication
Shows the battery condition
11
-Do not connect headphones with a monaural mini jack.
-This may lead to short-circuiting of the headphone output, resulting in
distorted sound output.
12
10
1. POWER OFF/ON
NOTE
1.When the battery power icon is empty and blinking, the batteries are almost
out of power, and you will need to change the batteries immediately.
2. Battery compartment
Accommodates two AA batteries.
For more details, please see “Installing batteries” on page 8.
2.The indicated battery condition may not be correct if the batteries were not
new when installed. If you plan to use the component for a long period,
it is recommended that you replace the batteries with brand new ones.
3. Antenna
4. Power LED (ANT-A)
6. Power LED (POWER)
1) The power LED glows blue when the unit is on.
2) The power LED of receiver glows red when low power.
1. Turn OFF the units, Slide the battery-compartment catches inward
(in the direction of the arrows “←,→”).
13. Shoe mount adapter
For more details, please see “To attach the shoe mount adapter” on page 13.
Installing Batteries
The transmitters and the receiver are each powered by two AA batteries. To install
batteries, please follow these steps:
11. + (+ selection)/ – (- selection) buttons
Press these buttons to set the transmission channel, attenuation level of
the input signal, or “STEREO” and ”MONO” mode.
For details, please see “How to set up channel ,VOL, STEREO and MONO” on
page 14.
12. SET button
Press to change and enter display parameters.
For details, please see “How to set up channel, VOL, STEREO and MONO” on
page 14.
5. Power LED (ANT-B)
10. LINE OUT (audio output) connector (3.5mm diameter stereo mini jack)
Connect one end of the supplied stereo 3.5mm mini plug-BMP conversion or
XLR-BMP conversion output cable here, and the other end to the microphone
input on a DSLR camera, camcorder, mixer, or amplifier etc.
Attachment and Installation Procedures
Attaching the supplied accessories to the body-pack transmitter
NOTE
Please make sure the units is turned OFF, because taking out the battery
compartment during signal transmission may cause high noise.
To attach the wind screen to the microphone
To attach the microphone
Battery indication
When you turn the power on, the battery condition is shown by the BATT
indication in the display section.
Be sure to check the expiration date printed on the new batteries before
using them.
NOTE
1.The indicated battery condition may not be correct if the batteries were not
new when installed. If you plan to use the units for a long period, it is
recommended that you replace the batteries with brand new ones.
2.Insufficient battery power can decrease the ability of transmitters and receiver.
Therefore, make sure your batteries start out with a full charge when using
this system, and always carry spare batteries.
2. Take out the battery holder.
Insert the microphone into the hole at the bottom of the windscreen.
For a secure connection, be sure to turn and lock the connector cover.
To remove the belt clip
Notes on battery
3. Insert the batteries into the battery compartment by matching their
polarities to the indications inside the compartment. Then, set the
battery holder in the original position.
Batteries may leak or explode if mistreated.
Be sure to follow these instructions:
NOTE
1.Make sure install the batteries with correct polarity.
2.Always replace two batteries together.
3.Do not use different types of batteries or old and new one together.
4.When not using the components for a long period of time, remove the
batteries to avoid leakage. If the batteries do leak, clean all leakage from
the battery compartment and the component.
To attached the holder clip to the microphone
Make sure to attach or remove the microphone after turning off the transmitter.
Leakage left in the compartment and the component may cause poor battery
contact. If there seems to be poor battery contact, please consult our local
dealer.
Insert a pointed object such as a ballpoint pen between the belt clip and the
transmitter to make some space between them, and then remove the end of
the belt clip from the hole on the side of the transmitter.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by manufacturer.
When you dispose of the battery, you must obay the law in the relative area or
country.
Push the holder clip against the bottom of the microphone until the holder clip
clicks into place.
Attaching the supplied accessories to the body-pack
transmitter
To connect the supplied conversion cable to the OUTPUT
connector
11
10
5. The Channel and Volume of the Transmitters and the Receiver are “CH-1”
and “VOL-24” when turn on them for the first time.
- Adjust channel as you need.
- Adjust as necessary to make sure an ample level is being transmitted to
the receiver.
The objective is to transmit the highest level without distortion for the
best signal-to-noise ratio throughout the signal path.
To attach the shoe mount adapter
6. Once you have determined the transmission quality and level are good,
mount the transmitter and the receiver.
How to set “STEREO” and “MONO”
1. Press “SET” button , the display section shows “STEREO” .
2. Press the + (+ selection) button, the display section shows “MONO” .
3. Press the + (+ selection) button again, it will be “STEREO” Mode.
Important: The Mode that the factory set is “STEREO”.
The results are stored in memory, and the change becomes effectively when you
turn on the transmitters next time.
How to change tranmitters A and B
For a secure connection, be sure to turn and lock the connector cover.
Connecting the Transmitters and the Receiver
To attach the shoe mount adapter
Before attaching the shoe mount adapter, attach the belt clip.
Reorienting the belt clip: The BY-WM8’s belt clip can easily be removed and
reattached to the body pack, so you can mount it upside down. To reorient the
belt clip, please follow the below steps:
1.Push outward on the belt clip at one of the hinges, so one side of the clip
pops out.
2.Push the belt clip out from the other hinge to completely remove the clip
from the body pack.
3.Realign the belt clip with the body pack, making sure the clip is facing the
desired direction.
4.Insert the two-way belt clip into the body pack, one hinge at a time.
To connect the transmitters and the receiver, follow these steps:
1.Make sure the supplied lavalier microphones are connected to the transmitters’
microphones input or plug a line-level source into the transmitters’ line input.
Note: If you are connecting the receiver to a sound system, mute the sound
system. Do not monitor with the headphones at the stage. Anytime you are
changing the channel, remove your headphones and mute connected sound
systems to avoid audible RF noise bursts.
Turn on the transmitters and the receiver, when the display section shows “CH”.
-Press the + (+ selection) button to increase the channel.
-Press the – (- selection) button to decrease the channel.
-Long press +/- buttons, the channel will increase and decrease
automatically.
Noted:1) If you are using multiple BY-WM8 wireless systems, make sure
each system is set to a different channel, which can reduce the
chance of intermodulation.
2) If the transmitters and the receiver connect, the power indicator
stays blue. Otherwise, if the power indicator of receiver light off,
that means, the transmitters and the receiver is disconnected.
For more details, please kindly refer to page 3 .
3) The results are stored in memory automatically. The stored
channel number will appear in the display section in next time if
you turn on the transmitters and the receiver.
(motors, transformers, or dimmers) may cause it to be affected
by electromagnetic induction.
-Press “SET” button, the display section shows “VOL”
-Press the + (+ selection) button to increase the volume.
-Press the – (- selection) button to decrease the volume.
-Long press +/- buttons, the volume will increase and decrease
automatically.
Receiver
VOL
Transmitter
+/-
Adjust attenuation level of the 1. Adjust sound recording level.
2. Adjust monitor sound level.
input signal.
The units does
not turn on
Places or in locations subject to vibration, such as the following:
- Near electrical equipment, such as motors, transformers, or dimmers.
- Near air condition equipment or places subject to direct air flow from an air
conditioner.
- Near public address loudspeaker.
- Where adjacent equipment might knock against the receiver.
Keep the BY-WM8 components as far from such equipment as possible or use
buffering materials.
The transmitter and the Set the transmitter to the
There is
receiver are set to
same channel.
distortion in the different channels.
sound
Headphones with a mon- Use the headphones with a
aural min jack is used.
stereo mini jack.
The channel
cannot be
changed
Insert the batteries with the
correct polarity orientation.
The batteries are exhausted.
Replace the batteries with
new ones.
RF interference
Clean the + and - terminals
with cotton swab.
Replace the batteries with
The batteries are exhausted.
new ones.
Use alkaline batteries. The
Manganese batteries are being battery life of a manganese
battery is less than half that
used.
of an alkaline battery.
The BY-WM8 components is
The batteries drain quickly
being used under cold
under cold conditions.
conditions.
Restart the unit, then change
An attempt was made to
the channel with the + and change the channel by
buttons.
pressing the SET button only.
Use the same channel setting
on both the transmitter and
receiver.
The input level of the
transmitter is low. Press the button on the transmitter in
The sound is
The attenuation level on the
attenuation level setting
weak.
transmitter is too high.
mode to decrease the
attenuation level.
The line input is selected on the Pull the cable out from LINE
transmitter.
IN.
The input level of the receiver
is extremely high. Press the +
There is
button on the transmitter in
The attenuation level on the
distortion in the transmitter is too low.
attenuation level setting mode
sound
to increase the attenuation
level.
There is no
sound.
17
www.boya-mic.com
System
Oscillator type: PLL Synthesized Control Oscillator
Carrier Frequency Range: 584 MHz-608 MHz (Transmitter A)
568.6MHz-599.9 MHz (Transmitter B)
Channels: 48
Frequency response: 60Hz-15 KHz+/-3 dB
Operation range: 100m (300')(without obstacle)
CE Maintenance
1.Use careful with the earphone maybe excessive sound pressure from earphones and
headphones can cause hearing loss.
2.Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according
to the instructions.
Transmitter
3.EUT Operating temperature range: -20° C to 40° C .
RF output power: 20 mW
Antenna: Flexible
Spurious emission: 250 nW or less
Audio input connector: 3.5mm mini jack
Audio input level: 600 mV-2000 mV
Reference deviation: ±7KHz (-60 dBV, 1 KHz input)
Input frequency range: 20 Hz-20 KHz
Power supply: Two AA batteries
Operation time: 6 hours
Dimensions: (H x W x L) 7.0” x 2.6” x 1.1”(17.7 x 6.7 x 2.9 cm)
Weight: 95g (3.4 oz) without batteries
4.To prevent possible hearing damage. Do not listen at high volume levels for long periods.
Declaration of Conformity
Boya Audio Equipment (Shenzhen) Co., Ltd. hereby declares that this UHF Dual-Channel
Wireless Microphone System is in compliance with the essential requirements and other relevant
provisions of Directive 1999/5/EC.a copy of the original declaration of conformity may be found
or obtained at http://www.boya-mic.com/
Receiver
Antenna: Flexible
Audio input connector: 3.5mm mini jack
Signal-to-noise ratio: 80 dB
Distortion: 0.8% (-60 dBV, 1 KHz input)
Earphone output level: 60 mW, 32 Ohms/1KHz
Audio output level: 120 mV
Power supply: Two AA batteries
Operation time: 6 hours
Dimensions: (H x W x L) 7.7” x 3.1” x 1.1”(19.6 x 8.0 x 2.9cm)
Weight: 130g (4.6 oz) without batteries
Lavalier Microphone
Transducer: Back electret Condenser
Polar pattern: Omni-directional
Frequency Range: 35Hz ~ 18 KHz
Signal / Noise：74dB SPL
Sensitivity: -30dB +/-3dB / 0dB=1V/Pa, 1 kHz
Connector: 3.5mm locking mini plug
Length: 1.2m (4’)
20
The audio is
noisy or
distorted. This
can include drop
outs, white
noise, bursts,
pops and clicks.
RF signal is weak.
The channel setting on the
transmitter is different from
that on the receiver.
16
Specifications：
Remedy
The polarity orientation of the
batteries in the battery
compartment is incorrect.
The battery terminals in the
transmitter are dirty
The batteries
become drained
quickly.
Cleaning
Clean the surface and the connectors of the BY-WM8 components with a dry,
soft cloth. Never use thinner, benzene, alcohol or any other chemicals, since
these may mar the finish.
Meanings
21
15
14
If you have any problem using the BY-WM8 components, use the following
checklist.
If any problem persist, please consult our local dealer, or contact us directly.
Symptom
Important: Set from any channel (1-48) is OK, for example, if display shows “CH-A-4”,
after long press “SET” bottom, it will show ” CH-B-4”
For more details about VOL function, please see the below:
Keep the BY-WM8 components as far as from such equipment as possible.
. The presence of the lighting equipment may produce electrical interference
over the entire frequency range. Position the BY-WM8 components so that
interference is minimized.
. To avoid degradation of the signal-to-noise ratio, DO NOT use the BY-WM8
components in noisy
1. How to change tranmitter A to tranmitter B
1) Set display section shows “CH-A-1”.
2) Long press “SET” bottom till display shows “CH-B-1”.
Set up Volume
13
Troubleshooting
Usage and storage
Both two transmitters can be used with A or B.
2. How to change tranmitter B to tranmitter A, just redo the 1) and 2) steps as above.
Set up Channel
3.Set the transmitters and the receiver to the same channel. If you are
experiencing interference or noise on one channel, try a different channel.
12
. Operating the BY-WM8 components near electrical equipment
For setting up the channel ,VOL, STEREO and MONO, please follow the
below steps:
2.Turn on the transmitters and the receiver.
4.With the headphone volume low, plug your headphones into the receiver and
gradually raise the level to a comfortable volume for monitoring the
transmission.
Important Notes
NOTE
1.When you are setting the transmission channel, the transmitter cannot
be used to transmit signals.
2.Do not remove the batteries while setting the transmission channel.
3.Make sure that the selected channel is the same on the transmitters and
receiver being used in the same system.
The input level on the
camera, recorder, or
mixer is too high.
18
.Try a different channel. Make sure
both units are on the same
channel.
.Try to position the antennas at a
45° angle in relation to each other.
There can be a lot of RF
interference outdoors.
.Try moving indoors, where there
is less RF interference.
.Keep the units' antennas at least
2'(0.6m) away from conductive
objects like metal and water.
.Overhead telephone lines,
fluorescent lighting, and metal
fences can all cause interference.
.Turn off all nearby computers
and mobile phones.
Make sure there is an unobstructed
line of sight between the
transmitter's and the receiver's
antennas.
Keep in mind that your body,
clothes, and onstage sets are
possible obstructions.
Make sure the receiver and
the transmitter are within
328'(100m) range.
If there are obstructions, you
may need to move closer.
Turn down the audio input level on
your camera or recording device.
Lower the audio output level on
the receiver.
Turn down the gain on your mixer.
If there is no adjustment on the
device, and the level is still high,
adjust the microphone level on the
transmitter. Keep this level as high
as possible without distortion.
When using an omnidirectional
Too much
Make sure the microphone
microphone like the one
ambience is
included with this system, the is as close as to the subject
being picked
microphone may be picking up as possible.
up.
too much ambience.
FCC STATEMENT:
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.
(2) This device must accept any interference received, including interference
that may cause undesired operation.
Warning: Changes or modifications to this unit not expressly approved
by the party responsible for compliance could void the user’s authority to
operate the equipment.
NOTE: “This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may cause
harmfulinterference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
RF warning statement:
The device has been evaluated to meet general RF exposure requirement.
The device can be used in portable exposure condition without restriction.
19

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