Quick Find
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!

Specs

Reciever

UHF Band Operation: 520–937.5 MHz (region-specific)
Oscillator: PLL Synthesized
Frequency Stability: ±0.005%
Modulation: FM
Transmission Range: 328 feet / 100 meters
Signal-to-Noise Ratio: > 100 dB (at 20 KHz deviation and 60 dB?V antenna input
Image & Spurious Rejection: 80 dB minimum
Receiving Sensitivity: At 3 uV over 52 dB/A SNR
Selectivity: > 50 dB
AF Response: 80 Hz – 18 KHz
THD: < 1% (at 1 KHz)
IF Frequency: 1st: 243.95 MHz / 2nd: 10.7 MHz
= Dynamic Range: > 100 dB
Tone Signal: 32.768 KHz
Audio Output: 1 balanced XLR1 unbalanced 1/4” (6.35mm)
Display: High-visibility back-lit LCD with RF and AF meters
Power: Supply: 12 V, 1 A, center positive (adapter included)Consumption: 150 mA ±10 mA
Case: Half 19” EIA-rack plastic case
Dimensions: 7.9” x 4.8” x 1.7”20.0 cm x 12.2 cm x 4.2 cm
Weight: 2.1 lbs.1.0 kg

Transmitters


UHF Band Operation: 520–937.5 MHz (region-specific)
Channel Selection: Synchronization with receiver
RF Power Output: 10 mW (maximum)
Deviation: ±20 KHz with limiting compressor
Spurious Emission: > 60 dB below carrier frequency
Display: Hand-Held Microphone:Belt-Pack Transmitter:2-digit 7-segment LCD2-digit 7-segment LCD
Power: Hand-Held Microphone:Belt-Pack Transmitter:Consumption:2.4 VDC (1.2V via 2 AA batteries)3 VDC (1.5V via 2 AA batteries)120 mA ±10 mA

Dimensions:

Hand-Held Microphone: 2.0” x 2.0” x 10.2” / 5.2 cm x 5.2 cm x 26.0 cmHeadset Microphone: 1.5” x 0.5” x 0.5” / 3.8 cm x 1.3 cm x 1.3 cmLavalier Microphone: 1.0” x 0.25” x 0.25” / 2.5 cm x 0.6 cm x 0.6 cmBelt-Pack Transmitter: 2.6” x 3.8” x 0.9” / 6.5 cm x 9.7 cm x 2.4 cm

Weights:

Hand-Held Microphone: 0.5 lbs. / 0.2 kg Headset Microphone: 0.2 lbs. / 0.1 kg Lavalier Microphone: 0.1 lbs. / 0.05 kg Belt-Pack Transmitter: 0.2 lbs. / 0.1 kg



Manufacturers