BOYA BY-WM6 UHF Wireless Microphone System
Brand: BOYA
Model: BY-WM6
Type: UHF Wireless Microphone System
Introduction
The BOYA BY-WM6 is a UHF wireless microphone system designed for professional audio applications such as ENG (Electronic News Gathering), EFP (Electronic Field Production), and DSLR video recording. It features a lightweight design with a simple menu for operation, consisting of a body-pack transmitter, a portable receiver, and various accessories.
Included Accessories
- Omni-directional lavalier microphone
- Stereo 3.5mm mini plug cable
- XLR output cable
- Microphone Holder clip
- Wind screen
- Belt clip
- Shoe mount adapter
Transmitter and Receiver Components
Transmitter Components:
Receiver Components:
Installing Batteries
Both the transmitter and receiver are powered by two AA batteries each. Follow these steps:
- Turn OFF both units.
- Slide the battery-compartment catches inward (in the direction of the arrows) to open.
- Take out the battery holder.
- Insert batteries into the compartment, matching polarities to the indications.
- Set the battery holder back in its original position.
Battery Notes:
- Check expiration dates on new batteries.
- Ensure correct polarity when installing.
- Always replace two batteries together.
- Do not mix battery types or old/new batteries.
- Remove batteries for long periods of non-use to prevent leakage.
- Clean any leakage promptly.
- Low battery power can affect performance. Always carry spare batteries.
Attachment and Installation Procedures
Attaching Accessories to Transmitter:
- Microphone: Connect the lavalier microphone to the microphone input. Ensure the 3.5mm plug is fully inserted and locked. To remove, release the locking mechanism and pull.
- Holder Clip to Microphone: Push the holder clip onto the bottom of the microphone until it clicks.
- Wind Screen to Microphone: Insert the microphone into the hole at the bottom of the windscreen.
- Belt Clip Removal: Insert a pointed object between the clip and transmitter to create space, then remove the clip end from the side hole.
Attaching Accessories to Receiver:
- Shoe Mount Adapter: Attach the belt clip first, then attach the shoe mount adapter.
- Belt Clip Reorientation: The belt clip can be removed and reattached upside down. Push outward on one hinge to pop it out, then remove from the other hinge. Realign and insert one hinge at a time.
Connecting Conversion Cable:
Connect the supplied stereo 3.5mm mini plug or XLR output cable to the receiver's OUTPUT connector for connection to cameras, mixers, or amplifiers. Ensure a secure connection by locking the connector cover.
Connecting the Transmitter and Receiver
- Connect the lavalier microphone to the transmitter's microphone input or a line-level source to the line input.
- Turn ON the transmitter and the receiver.
- Set both the transmitter and receiver to the same channel. If interference occurs, try a different channel.
- Monitor the audio with headphones plugged into the receiver's monitor connector, gradually increasing the volume.
- Mount the transmitter and receiver once transmission quality is confirmed.
Notes:
- When changing channels, mute connected sound systems and remove headphones to avoid RF noise bursts.
- If using multiple BY-WM6 systems, ensure each is on a different channel to minimize intermodulation.
- The power indicator stays blue when connected, flashes blue when disconnected.
- Results are stored automatically.
Setting Channel and Volume
Set Up Channel:
With the transmitter and receiver ON, the display shows "CH". Use the '+' and '-' buttons to increase or decrease the channel. Long-pressing the buttons allows for automatic scrolling.
Set Up Volume:
Press the "SET" button; the display shows "VOL". Use the '+' and '-' buttons to adjust the volume. Long-pressing the buttons allows for automatic scrolling.
VOL Function:
- Transmitter: Adjusts the attenuation level of the input signal.
- Receiver: Adjusts sound recording level and monitor sound level.
Important Notes
Usage and Storage:
- Keep components away from electrical equipment (motors, transformers, dimmers) to avoid electromagnetic induction.
- Position components to minimize interference from lighting equipment.
- Avoid noisy places or locations with vibration to maintain signal-to-noise ratio.
- Keep components away from air conditioners, public address loudspeakers, and potential physical impacts. Use buffering materials if necessary.
Cleaning:
Clean surfaces and connectors with a dry, soft cloth. Do not use thinners, benzene, alcohol, or other chemicals, as they may damage the finish.
Troubleshooting
| Symptom | Possible Meanings | Remedy |
|---|---|---|
| Units do not turn on | Incorrect battery polarity. Batteries exhausted. Dirty battery terminals. | Insert batteries with correct polarity. Replace batteries. Clean terminals with a cotton swab. |
| Batteries drain quickly | Batteries exhausted. Using manganese batteries. Cold conditions. | Replace batteries. Use alkaline batteries. Batteries drain faster in cold; use spares. |
| Channel cannot be changed | Only SET button pressed, not +/-. | Restart unit and use +/- buttons to change channel. |
| No sound | Transmitter and receiver channels do not match. | Set transmitter and receiver to the same channel. |
| Sound is weak | Transmitter attenuation level too high. Input level too low. Line input selected on transmitter. | Decrease attenuation level on transmitter. Increase input level. Pull cable from LINE IN. |
| Distortion in sound | Transmitter attenuation level too low. Receiver input level too high. Transmitter and receiver channels do not match. Using monaural headphones. | Increase attenuation level on transmitter. Adjust input levels. Set matching channels. Use stereo headphones. |
| Audio is noisy or distorted (dropouts, white noise, pops, clicks) | RF interference. RF signal is weak. Input level on camera/recorder/mixer is too high. | Try different channels. Position antennas at 45° angle. Move indoors if outdoors. Keep antennas 2ft (0.6m) from conductive objects. Turn off nearby electronics. Ensure unobstructed line of sight. Stay within 328ft (100m) range. Adjust input levels on connected devices. Adjust microphone level on transmitter if necessary. |
| Too much ambience picked up | Microphone too far from subject. | Position the microphone as close to the subject as possible. |
Specifications
System
| Oscillator type | PLL Synthesized Control Oscillator |
|---|---|
| Carrier Frequency Range | 576 MHz - 599 MHz |
| Channels | 48 |
| Frequency response | 60Hz - 15 KHz ±3 dB |
| Operation range | 100m (300') (without obstacle) |
| Operating temperature | -10℃ to +50℃ (14°F to 122°F) |
| Storage temperature | -10℃ to +55℃ (14°F to 131°F) |
Transmitter
| RF output power | ≤10 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 | 8 hours |
| Dimensions (H x W x L) | 10.6 x 6.7 x 2.9 cm (4.2” x 2.6” x 1.1”) |
| Weight | 95g (3.4 oz) without batteries |
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 | 8 hours |
| Dimensions (H x W x L) | 10.6 x 6.7 x 2.9 cm (4.2” x 2.6” x 1.1”) |
| Weight | 98g (3.5 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’) |
Frequency Chart
| Channel (CH) | Frequency (MHz) | Channel (CH) | Frequency (MHz) |
|---|---|---|---|
| 1 | 576.4 | 25 | 588.4 |
| 2 | 576.9 | 26 | 588.9 |
| 3 | 577.4 | 27 | 589.4 |
| 4 | 577.9 | 28 | 589.9 |
| 5 | 578.4 | 29 | 590.4 |
| 6 | 578.9 | 30 | 590.9 |
| 7 | 579.4 | 31 | 591.4 |
| 8 | 579.9 | 32 | 591.9 |
| 9 | 580.4 | 33 | 592.4 |
| 10 | 580.9 | 34 | 592.9 |
| 11 | 581.4 | 35 | 593.4 |
| 12 | 581.9 | 36 | 593.9 |
| 13 | 582.4 | 37 | 594.4 |
| 14 | 582.9 | 38 | 594.9 |
| 15 | 583.4 | 39 | 595.4 |
| 16 | 583.9 | 40 | 595.9 |
| 17 | 584.4 | 41 | 596.4 |
| 18 | 584.9 | 42 | 596.9 |
| 19 | 585.4 | 43 | 597.4 |
| 20 | 585.9 | 44 | 597.9 |
| 21 | 586.4 | 45 | 598.4 |
| 22 | 586.9 | 46 | 598.9 |
| 23 | 587.4 | 47 | 599.4 |
| 24 | 587.9 | 48 | 599.9 |
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 harmful interference 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.
