VDR-303 VHF 19" Dual-Channel Auto Sync Diversity Receiver

VDR-303VHF 19" Dual-Channel Auto Sync Diversity Receiver

The CHIAYO VDR-303 VHF Half 19-Inch Dual Channel Diversity Auto-Sync Receiver is a wireless microphone system that combines simplicity and powerful functionality. This receiver features built-in auto-scan and channel sync functions, ensuring stable and clear audio transmission suitable for various environments, including school classrooms, business meetings, karaoke, and public broadcasting projects. Whether you are a lecturer, host, or performer, the VDR-303 can meet your needs and provide the best user experience.
  • Auto-Scan and Quick Channel Sync

    Auto-Scan and Quick Channel Sync

    The VDR-303 is equipped with advanced auto-scan functionality, enabling it to quickly search for and lock onto interference-free channels, ensuring stable performance. The one-touch channel sync function makes operation simple; just a single press completes the channel synchronization. This feature makes it particularly suitable for multi-device environments, such as educational training, corporate meetings, and public broadcasting, allowing for easy setup and quick configuration every time.

  • High Sensitivity Reception and Squelch Circuit

    High Sensitivity Reception and Squelch Circuit

    The VDR-303 uses exclusive audio code and noise detection squelch circuits to effectively prevent noise interference and significantly improve reception range. Whether in noisy conference rooms or complex broadcasting environments, this receiver can provide clear sound quality and stable audio transmission, ensuring that users enjoy high-quality audio experiences in any setting. Its high-sensitivity receiver can accurately capture every sound detail, making it an ideal choice for professional audio applications.

  • Diversified Audio Output and Convenient Control

    Diversified Audio Output and Convenient Control

    The VDR-303 offers unbalanced (Ø6.3mm) and mixed audio (Ø6.3mm) outputs, accommodating different audio equipment and application scenarios. Whether in educational training, commercial presentations, or public broadcasting systems, it delivers clear and powerful audio output. The convenient volume knob and channel control buttons make operation simple and intuitive, while the LED indicator clearly displays the antenna reception and microphone input volume status. Its diversified audio output design ensures wide compatibility and flexible application, enhancing user convenience and allowing easy adjustment and control of audio output to meet different application needs.

Features

  • Auto Scan quickly searches for an interference-free working channel.
  • Rapid channel sync with one click.
  • Pilotone, noise-detector and squelch circuits prevent noise, interference and improve operation distance.
  • Adjustable SQ. Increases receiver range with higher sensitivity and reduces interference with lower sensitivity.
  • Convenient gain/volume control(s) and switchable MIC-LINE output level.
  • Single channel audio output jacks: unbalanced 6.3mm.
  • Mixed audio output jack: unbalanced 6.3mm.

 

Model VDR-303
Chassis EIA standard 19" metal 1U
Receiving mode Diversity
Frequency range VHF 160 - 260 MHz
Bandwidth 10 MHz
Channel Dual
Preset frequencies 10
Channel sync 1-way (RX→TX)
Frequency response 50 Hz - 18 KHz
Peak deviation ± 40 KHz
Sensitivity S/N > 80 dBm at 10 dBμV
S/N ratio > 110 dB(A)
T.H.D. < 0.5% @ 1 KHz
Receiving antenna Fixed at rear-end
Oscillation PLL synthesized, frequency stability ± 0.005% (-10 - +60°C)
Squelch Pilotone & Noise-cancelling dual-squelch circuit
Audio connector Unbalanced Ø6.3mm
Audio Output Adjustment Volume knob for adjustment of output volume
Output level switch MIC-LINE
Power supply 12V DC / 1.0A
Dimensions (mm) 420 × 205 × 44
Weight (kg) 1.5

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