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Alto Radius 100 Handheld UHF Microphone

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Available. Usually delivered within 2-3 days

RRP: £149.99


In Stock

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Alto - Radius 100 Handheld - front

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Alto Radius 100 UHF Handheld Radio Microphone is a mid range Wireless MIcrophone but do not let that put you off as the Alto Radius 100 has been built with the singer/performer in mind.

The Radius 100 series has a built in LCD screen that enables you to select your channel and frequency with ease, It also has an independant gain control situated on the front of the receiver to ensure you get that crisp sound.


Some more info

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!

Additional Information

Brand Alto
Type Dynamic
Outputs XLR
Built-in Compressor No
Warranty 1 Year

Technical Spec


- 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 dBμV 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


- 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
- 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
- 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

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