1. Úvod
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. Co je v krabici
- Vysílací jednotka
- Přijímací jednotka
- klopový mikrofon
- Cold Shoe Mount adaptér
- 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
- Záruční list
- Uživatelská příručka
- AA Batteries (may vary by package)
3. Vlastnosti produktu
- Kompatibilita: Works with smartphones, tablets, DSLRs, camcorders, audio recorders, PCs, etc.
- 12 přepínatelné kanály: Provides multiple frequency options to avoid interference.
- High-Band VHF Operation: Zajišťuje vynikající kvalitu zvuku.
- Kolečko ovládání hlasitosti: Allows precise audio level adjustment.
- Detachable and Flexible Antenna: Features 360° rotation for optimal signal reception.
- Bezdrátový dosah: Operates up to 40m (131 feet) away without obstacles.
- Napájení z baterie: 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.
- Monitorování v reálném čase: Receiver monitor jack allows real-time audio status check.
- Infrared Sync Pairing: Seamlessly docks wireless channels for quick setup.
4. Průvodce nastavením
4.1 Instalace baterií
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 Connecting to Your Recording Device
- 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.
- Pro chytré telefony/tablety: 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. Návod k obsluze
5.1 Zapnutí/vypnutí
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 Nastavení hlasitosti
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 Real-time Audio Monitoring
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. Údržba
- Uchovávejte zařízení v suchu. Nevystavujte ho vodě ani vlhkosti.
- Use a soft, dry cloth to clean the units. Avoid harsh chemicals or abrasive materials.
- Pokud zařízení nebudete delší dobu používat, vyjměte baterie, abyste zabránili jejich vytečení.
- Systém skladujte na chladném a suchém místě, mimo dosah přímého slunečního záření a extrémních teplot.
7. Řešení problémů
- Žádný zvuk: Check battery levels, ensure units are powered on and paired, verify cable connections, and adjust volume levels.
- Rušení/šum: Try switching to a different channel using the infrared sync function. Ensure the antenna is properly positioned.
- Špatný rozsah: Ensure there are no major obstacles between the transmitter and receiver. Check battery levels.
- Problémy s nahráváním: Ensure MicroSD card is properly inserted and formatted. Check available storage space.
8. Specifikace
| Funkce | Specifikace |
|---|---|
| Frekvenční rozsah nosné | 540 MHz - 592 MHz |
| Počet kanálů | 99 |
| Frekvenční odezva | 60 - 17 kHz |
| Efektivní vzdálenost | About 150 meters (131 feet without obstacles) |
| Anténa | 1/4 Conductor |
| Audio rozhraní | 3.5mm TRS rozhraní |
| Poměr signálu k šumu | ≥75 dB |
| Celkové harmonické zkreslení | 0.5 % |
| Zpoždění zvuku | <1 ms |
| Výstupní výkon sluchátek | 90 mW |
| RF výstupní výkon | 30 mW |
| Falešné potlačení | -60 dB |
| Anténa | Soft antenna |
| Audio vstupní rozhraní | 3.5mm TRS rozhraní |
| Nahrávání Sampsazba ling | 16bit 48K |
| Max. Support Storage | 32G (MicroSD) |
| Moc | Dvě AA baterie |
| Životní čas | Asi 5h |
| Rozměry | 195 mm * 30 mm * 65 mm |
| Hmotnost | RX 87g, TX 86g |
9. Záruka a podpora
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 webmísto.