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Features

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Adopting VHF H frequency band for obviating interference

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Frequency

Using multilevel high frequency and mid frequency narrowband
Filter for fully eliminating signal disturbing

Low voltage power supply design keeps it working even at 4V

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Unique ALC circuitry for avoiding distortion from high volume

Low voltage indication available for handheld microphone

Special circuitry for eliminating noise shock wave from switch

Quartz crystal oscillator circuitry for extremely stable frequency

Adopting audio companding technique for reducing the noise and
Increasing the dynamic range

Function of effectively reducing the howling

Independent unbalanced and mixed outputs for conveniently
connecting sound mixer and Karaoke amplifier

Rugged and durable handheld microphone design

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Summary of Contents for VF-289

Page 1: ...VHF Wireless Microphone System User s Manual VF 289 Guangzhou Aoyuan Electronics Factory...

Page 2: ...ove its functions advance frequency using multilevel high frequency and mid frequency narrowband filter mulriple noise detect and control They feature also the special functions of avoiding interferen...

Page 3: ...rom high volume Low voltage indication available for handheld microphone Special circuitry for eliminating noise shock wave from switch Quartz crystal oscillator circuitry for extremely stable frequen...

Page 4: ...ator doesn t light please check if the battery is full enough or the battery polarities are correct 3 If the mute function is needed please push the switch to the middle position then the microphone w...

Page 5: ...io output cable and connect it with any output socket If independent output is required please connect another cable 5 The RF indicator of receiver will light when turning on the transmitter Please sw...

Page 6: ...misuse can cause malfunction 4 Do not expose the system directly to sun and rain and keep it away from magnetic filed 5 Any change or modification on the construction of this device which are not exp...

Page 7: ...3 Check if the receiver is put in inappropriate position i e on the ground or at the corner of the wall or in a strong electromagnetic filed please change its position Remarks If there are any other t...

Page 8: ...te 50dB False Image Interference Rate 80dB Receiver Power Supply DC 12V 300mA Transmitter Power Supply 9V Battery Transmit Power 1 0dBm Carrier Frequency Band VHF H 174 2MHz 215 8MHz Output Type Separ...

Page 9: ...ory Business Centre of Domestic Sales 020 86381808 86381888 Fax 020 86599478 Production Base 3 Floor 5 Building in the Quondam Food Industry Park 8 No 135 CommercialAvenue XinhuaTown Huadu District Gu...

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