Redback UHF Wireless Microphone System 700 Channel Receiver

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Available on orders $80 to $1000
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The Redback 700 channel UHF 520-550MHz radio microphone system is a professional system incorporating true diversity reception.

Availability: Available Usually Dispatched In: 2 - 5 Business Days Product Code: ALT-C8890D ISBN: 9321758174753 Brand/Publisher: Redback Categories: Professional Audio

Part of the series Portable PA Systems.

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The Redback® 700 channel UHF 520-550MHz radio microphone system is a professional system incorporating true diversity reception. This ensures a consistent and clear microphone signal with minimal dropout and noise interference. 700 channels allow interference free operation with up to 12 systems in the one location. Noise reduction system automatically compensates for high level sound inputs thus avoiding distortion. Channel and volume settings are adjusted via front panel. The LCD screen displays selected channel, frequency and RF/AF signal strength. Transmitters can be recharged via a front panel port (when fitted with rechargeable batteries). A range in excess of 100m is possible in ideal conditions. Output is via 3 pin XLR balanced or 6.35mm unbalanced. The system operates from 12V DC (power supply included). Also included in box is a 0.5m Male to Female XLR 3 pin lead.


  • 700 Channels in 520-550MHz UHF Band
  • LCD screen shows channel, frequency, RF/AF signal strength
  • 1RU half rack metal desk mount case
  • True diversity
  • Tone squelch circuit
  • Range over 100m in ideal conditions
  • 6.35mm line output
  • 3 pin balanced XLR mic output
  • Up to 12 systems can operate side-by-side on different channels.


  • Receiver
  • Carrier Frequency Range: UHF band 520-550MHz
  • Frequency Stability: ±0.005% with PLL synthesized controlled
  • S/N Ratio: Over 94dB, at 60dB/µV
  • Image and Spurious Rejection: 80 dB minimum
  • Receiving Sensitivity: 10uV over 80dB/uV antenna input
  • Selectivity: >50dB
  • Dynamic Range: >100dB
  • Modulation Mode: FM
  • IF Frequency: 1st : 243.95MHz 2nd: 10.7MHz
  • Service Area: 100m in ideal conditions
  • AF Response: 80Hz to 16kHz(±3dB)
  • T.H.D.: Less than 1% (at 1kHz)
  • Receiver Audio Output:
  • - Unbalanced: max. 775mV (0dB=0.775V) at 5KΩ Load
  • - Balanced: max. 1V (0dB=1V) at 5KΩ Load
  • Receiver Power Supply: DC 12V Adapter
  • Suggested Channel Groupings
  • Use these channel selections when using multiple transmitters in the same area.
  • Group A: Channels 2, 47, 162, 245, 399, 554, 608, 631.
  • Group B: Channels 18, 113, 133, 204, 264, 488, 647, 661.
  • Group C: Channels 32, 95, 308, 350, 378, 426, 542, 679.
  • Group D: Channels 65, 182, 323, 447, 504, 529, 572, 698.

*Specifications are subject to change without notice.


ISBN 9321758174753
Publisher Redback
Product Type PA Equipment,

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