1. 서론
The BOYA BY-WFM12 is a 12-channel VHF wireless microphone system designed to capture audio for smartphones, tablets, DSLR cameras, camcorders, audio recorders, and PCs. This system offers high-band VHF operation for superior sound quality and features such as real-time sound monitoring and card recording capabilities to prevent missing recordings.
2. 상자 안에 무엇이 들어있나요?
- 송신기 유닛
- 수신기 유닛
- 라 발리에 마이크
- 콜드 슈 마운트 어댑터
- 3.5mm TRS to TRS Output Cable (for cameras)
- 3.5mm TRS to TRRS Output Cable (for smartphones)
- Belt Clips (pre-attached)
- Windscreen for Lavalier Microphone
- 보증 카드
- 사용자 설명서
- AA Batteries (may vary by package)
3. 제품 특징
- 호환성: Works with smartphones, tablets, DSLRs, camcorders, audio recorders, PCs, etc.
- 전환 가능한 채널 12개: Provides multiple frequency options to avoid interference.
- High-Band VHF Operation: 탁월한 음질을 보장합니다.
- 볼륨 조절 휠: Allows precise audio level adjustment.
- Detachable and Flexible Antenna: Features 360° rotation for optimal signal reception.
- 무선 범위: Operates up to 40m (131 feet) away without obstacles.
- 배터리 구동: Both receiver and transmitter use two AA size alkaline batteries.
- Card Recording: Transmitter supports MicroSD card recording (up to 32GB) to prevent missing recordings and allow direct editing without conversion.
- 실시간 모니터링: Receiver monitor jack allows real-time audio status check.
- Infrared Sync Pairing: Seamlessly docks wireless channels for quick setup.
4. 설정 가이드
4.1 배터리 설치
Open the battery compartment on both the transmitter (TX) and receiver (RX) units. Insert two AA batteries into each unit, ensuring correct polarity. Close the battery compartments securely.

Figure 1: Transmitter and Receiver units with open battery compartments, showing where to insert AA batteries.
4.2 Attaching the Lavalier Microphone
Connect the 3.5mm plug of the lavalier microphone to the 'MIC IN' port on the transmitter unit. Secure the microphone to your clothing using the clip, positioning it approximately 6-8 inches from your mouth for optimal sound capture. Attach the foam windscreen to the lavalier microphone to reduce plosives and wind noise.
4.3 녹음 장치 연결하기
- For Cameras/Camcorders: Use the supplied 3.5mm TRS to TRS output cable. Connect one end to the 'OUTPUT' port on the receiver and the other end to the microphone input jack of your camera.
- 스마트폰/태블릿의 경우: Use the supplied 3.5mm TRS to TRRS output cable. Connect one end to the 'OUTPUT' port on the receiver and the other end to the headphone/microphone jack of your smartphone/tablet.

Figure 2: The BY-WFM12 system connected to a smartphone for mobile recording.

Figure 3: The BY-WFM12 system connected to a DSLR camera for professional video recording.
5. 사용 설명서
5.1 전원 켜기/끄기
Press and hold the power button on both the transmitter and receiver units until their respective screens light up. To power off, press and hold the power button again.
5.2 Channel Pairing (Infrared Sync)
Ensure both the transmitter and receiver are powered on. Align the infrared sensors on both units (usually located on the side). Press the 'SET' button on one unit to initiate pairing. The units will automatically scan and pair to an available channel. The screen will display the selected channel.

Figure 4: Close-up of the Transmitter and Receiver units, highlighting their displays and controls.
5.3 볼륨 조절
Use the volume control wheel on the receiver unit to adjust the output audio level to your recording device. Monitor the audio levels on your camera or through headphones connected to the receiver's monitor jack to prevent clipping or low volume.
5.4 실시간 오디오 모니터링
Connect headphones to the 'MONITOR' jack on the receiver unit to listen to the audio being captured in real-time. This helps ensure clear audio and proper functioning during recording.
5.5 On-board Recording (Transmitter)
Insert a MicroSD card (up to 32GB) into the dedicated slot on the transmitter unit. Refer to the user manual for specific instructions on how to initiate and stop recording directly on the transmitter. This feature provides a backup recording in case of wireless interference or dropouts.
6. 유지관리
- 기기를 건조하게 유지하십시오. 물이나 습기에 노출시키지 마십시오.
- Use a soft, dry cloth to clean the units. Avoid harsh chemicals or abrasive materials.
- 장기간 기기를 사용하지 않을 경우 배터리 누출을 방지하기 위해 배터리를 제거하세요.
- 시스템은 직사광선과 극한의 온도를 피해 서늘하고 건조한 곳에 보관하세요.
7. 문제 해결
- 소리 없음: Check battery levels, ensure units are powered on and paired, verify cable connections, and adjust volume levels.
- 간섭/잡음: Try switching to a different channel using the infrared sync function. Ensure the antenna is properly positioned.
- 불량한 범위: Ensure there are no major obstacles between the transmitter and receiver. Check battery levels.
- 녹음 문제: Ensure MicroSD card is properly inserted and formatted. Check available storage space.
8. 사양
| 특징 | 사양 |
|---|---|
| 캐리어 주파수 범위 | 540MHz - 592MHz |
| 채널 수 | 99 |
| 주파수 응답 | 60 - 17kHz |
| 유효 거리 | About 150 meters (131 feet without obstacles) |
| 안테나 | 1/4 Conductor |
| 오디오 인터페이스 | 3.5mm TRS 인터페이스 |
| 신호 대 잡음 비율 | ≥75dB |
| 총 고조파 왜곡률 | 0.5% |
| 사운드 딜레이 | <1밀리초 |
| 헤드폰 출력 전력 | 90mW |
| RF 출력 전력 | 30mW |
| 가짜 억제 | -60데시벨 |
| 안테나 | Soft antenna |
| 오디오 입력 인터페이스 | 3.5mm TRS 인터페이스 |
| 녹음 Samp링율 | 16bit 48K |
| Max. Support Storage | 32G (MicroSD) |
| 힘 | AA 배터리 2개 |
| 수명 | 약 5시간 |
| 치수 | 195mm * 30mm * 65mm |
| 무게 | RX 87g, TX 86g |
9. 보증 및 지원
The BOYA BY-WFM12 comes with a One Year BOYA warranty. For support or warranty claims, please refer to the contact information provided in your product packaging or visit the official BOYA web대지.