100 dB (at 20 KHz deviation and 60 dB\u03bcV antenna input\nImage & Spurious Rejection: 80 dB minimum\nReceiving Sensitivity: At 3 uV over 52 dB/A SNR\nSelectivity: > 50 dB\nAF Response: 80 Hz \u2013 18 KHz\nTHD: 100 dB\nTone Signal: 32.768 KHz\nAudio Output: 1 balanced XLR1 unbalanced 1/4\u201d (6.35mm)\nDisplay: High-visibility back-lit LCD with RF and AF meters\nPower: Supply: 12 V, 1 A, center positive (adapter included)Consumption: 150 mA \u00b110 mA\nCase: Half 19\u201d EIA-rack plastic case\nDimensions: 7.9\u201d x 4.8\u201d x 1.7\u201d20.0 cm x 12.2 cm x 4.2 cm\nWeight: 2.1 lbs.1.0 kg\nTRANSMITTERS\nUHF Band Operation: 520\u2013937.5 MHz (region-specific)\nChannel Selection: Synchronization with receiver\nRF Power Output: 10 mW (maximum)\nDeviation: \u00b120 KHz with limiting compressor\nSpurious Emission: > 60 dB below carrier frequency"}" data-sheets-userformat="{"2":513,"3":{"1":0},"12":0}">Wireless microphone system, Switching Diversity receiver, lavaliere microphone and wireless belt-pack transmitter. When you need a wireless microphone, you need it to come through with consistent, reliable performance. Excuses won’t do. Only performance counts. Radius 100 is an easy-to-use UHF diversity wireless microphone system that is available in three versions and provides reliable, crystal-clear sound for a wide range of professional vocal applications. Alto’s switching diversity receiver design utilizes two separate antenna systems for uncompromised wireless performance. If one antenna experiences signal interruption, the receiver instantly switches to the second antenna. This assures you of an extremely stable, reliable wireless signal,with virtually no chance of dropout or interruption. This is the promise of wireless performance-delivered!FeaturesAll-in-one, easy-to-use wireless microphone system for professional vocal applicationsDual-antenna UHF diversity receiver for increased reliability and signal consistencyUHF band operation: 520 - 937.5MHz (regionally selected)Receiver includes a high-visibility back-lit LCD display: Displays RF frequency and channel, AF and RF signal levels and other critical functionsSingle-button scan feature for quickly identifying the optimal operating frequencySync function automatically synchronizes transmitter and receiver frequencySquelch control for minimizing background noise during silent periodsFront-panel rotary volume controlBalanced XLR and unbalanced 1/4 -inch mic or line-level outputsSpecsRECEIVERUHF Band Operation: 520–937.5 MHz (region-specific)Oscillator: PLL SynthesizedFrequency Stability: ±0.005%Modulation: FMTransmission Range: 328 feet / 100 metersSignal-to-Noise Ratio: > 100 dB (at 20 KHz deviation and 60 dBV antenna inputImage & Spurious Rejection: 80 dB minimumReceiving Sensitivity: At 3 uV over 52 dB/A SNRSelectivity: > 50 dBAF Response: 80 Hz – 18 KHzTHD: < 1% (at 1 KHz)IF Frequency: 1st: 243.95 MHz / 2nd: 10.7 MHzDynamic Range: > 100 dBTone Signal: 32.768 KHzAudio Output: 1 balanced XLR1 unbalanced 1/4” (6.35mm)Display: High-visibility back-lit LCD with RF and AF metersPower: Supply: 12 V, 1 A, center positive (adapter included)Consumption: 150 mA ±10 mACase: Half 19” EIA-rack plastic caseDimensions: 7.9” x 4.8” x 1.7”20.0 cm x 12.2 cm x 4.2 cmWeight: 2.1 lbs.1.0 kgTRANSMITTERSUHF Band Operation: 520–937.5 MHz (region-specific)Channel Selection: Synchronization with receiverRF Power Output: 10 mW (maximum)Deviation: ±20 KHz with limiting compressorSpurious Emission: > 60 dB below carrier frequency.