C 8890D • UHF Wireless Microphone System 700 Channel Receiver

The Redback® 700 channel UHF 520-550MHz radio microphone system is a professional system incorporating true diversity reception. 700 channels allow interference free operation with up to 12 systems in the one location.

SKU: C 8890D Category:
Overview

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).

Key Features:

  • 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.
Specifications
Receiver
Carrier frequency range: 520 – 550MHz UHF band
Frequency stability: ±0.005%
Oscillator: PLL Synthesised
Receiving sensitivity: 10µV over 80dB/µV antenna input
Image and spurious rejection: 80dB minimum
Selectivity: >50dB
Modulation mode: FM
IF Frequency: 1st: 243.95MHz, 2nd: 10.7MHz
Tone signal: 32.768kHz
Signal to noise ratio: >94dB at 60dBµV
Audio frequency response: 80Hz to 16kHz
Total harmonic distortion: less than 1.0% (at 1kHz)
Audio output: Unbalanced max 775mV (0dB=0.775V) at 5kΩ load
Balanced max 1V (0dB=1V) at 5kΩ load
Power supply: 12V dc
Current consumption: 200mA (max)
Dimensions: 198W x 183D x 41H mm

Transmitter
Carrier frequency range: 520 – 550MHz UHF band
RF Power output: 10mW (max)
Oscillation mode: PLL Synthesised, 16 Channel selectable
Frequency stability: ±0.005%
Maximum deviation: 48kHz with limiting compressor
Spurious emission: >60dB below carrier frequency
Microphone capsule
Handheld: Uni-directional condenser unit
Beltpack: Sold separately
Battery: 3V dc (2 x 1.5V AA batteries) or
2.4V dc (2 x 1.2V AA rechargeable)
Current consumption: 120mA ±10mA

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