Radius 200L - Microphone ALTO - Free user manual and instructions

USER MANUAL Radius 200L ALTO

• All-in-one, easy-to-use wireless microphone system for the most demanding professional applications

• Dual-antenna/dual-receiver True Diversity design for mission-critical, dropout-free operation

• UHF band operation (520–937.5 MHz), regionally selected

• Receiver includes a high-visibility back-lit LCD display: Displays RF frequency and channel, AF and RF signal levels and other critical functions
• Radius 200: Hand-held condenser vocal microphone transmitter with integrated LCD display

• Radius 200H: High-quality headset microphone and wireless belt-pack transmitter

• Radius 200L: High-quality lavalier/lapel microphone with included clip and wireless belt-pack transmitter

• Radius 200M: Wireless belt-pack transmitter and 1/4” (6.35mm) instrument cable

• Single-button scan feature for quickly identifying the optimal operating frequency

• Sync function automatically synchronizes transmitter and receiver frequency
• Squelch control for maximum clarity and dynamic range • Front-panel rotary volume control
• Balanced XLR and unbalanced 1/4” (6.35 mm) mic- or line-level outputs Box Contents Radius 200 Radius 200 Receiver Radius HHT Condenser Microphone Transmitter Rackmount and Coupling Brackets (screws included) 1/4” (6.35mm) Unbalanced Audio Cable (3 feet / 1 meter)

2 BNC antennas Power Adapter 2 AA Batteries User Guide Safety & Warranty Manual Radius 200H Radius 200 Receiver Radius HSM Headset Microphone Transmitter Radius BPT Wireless Belt-Pack Transmitter Rackmount and Coupling Brackets (screws included) 1/4” (6.35mm) Unbalanced Audio Cable (3 feet / 1 meter)

2 BNC antennas Power Adapter 2 AA Batteries User Guide Safety & Warranty Manual Radius 200L Radius 200 Receiver Radius LVM Lavalier Microphone Transmitter Radius BPT Wireless Belt-Pack Transmitter Rackmount and Coupling Brackets (screws included) 1/4” (6.35mm) Unbalanced Audio Cable (3 feet / 1 meter)

2 BNC antennas Power Adapter 2 AA Batteries User Guide Safety & Warranty Manual Radius 200M Radius 200 Receiver Radius BPT Wireless Belt-Pack Transmitter Rackmount and Coupling Brackets (screws included) 1/4” (6.35mm) Instrument Adapter Cable 1/4” (6.35mm) Unbalanced Audio Cable (3 feet / 1 meter)

2 BNC antennas Power Adapter 2 AA Batteries User Guide Safety & Warranty Manual Support For the latest information about this product (system requirements, compatibility information, etc.) and product registration, visit altoprofessional.com.4

Important Safety Precautions Please note: Alto Professional and inMusic are not responsible for the use of its products or the misuse of this information for any purpose. Alto Professional and inMusic are not responsible for the misuse of its products caused by avoiding compliance with inspection and maintenance procedures. Please also refer to the included safety and warranty manual for more information.

Cables Make sure your cables are out of the way of performers, production crew, and audience so they will not trip over them.

Sound Level Permanent hearing loss may be caused by exposure to extremely high noise levels. The U.S. Occupational Safety and Health Administration (OSHA) has specified permissible exposures to certain noise levels. According to OSHA, exposure to high sound pressure levels (SPL) in excess of these limits may result in hearing loss. When using equipment capable of generating high SPL, use hearing protection while such equipment is under operation. Hours per day SPL (dB) Example 8 90 Small gig 6 92 Train 4 95 Subway train 3 97 High level desktop monitors 2 100 Classical music concert

Features Transmitter Your Radius 200 includes one of the following transmitter systems:

• Radius 200: a hand-held condenser vocal microphone transmitter

• Radius 200H: a headset microphone and wireless belt-pack transmitter

• Radius 200L: a lavalier microphone and wireless belt-pack transmitter

• Radius 200M: a 1/4” (6.35mm) instrument adapter cable and wireless belt-pack transmitter

1. Power/Mute Button: Press this button for 4 seconds to power the

transmitter on or off. When the transmitter is on, press this button briefly to mute or unmute the microphone.

2. Power/Mute LED: This light indicates the power or mute status:

• Red light: The transmitter is on.

• Flashing red light: The transmitter is low on battery power.

• Blue light: The transmitter is muted.

• Flashing blue light: The transmitter is muted and low on battery power.

3. Sync Button: Press this button to synchronize the transmitter with the

receiver. See Operation to learn more.

4. Display: This display shows the current channel and battery power level.

5. Battery Compartment (not pictured): Insert 2 AA batteries into the

compartment. Make sure the polarities of the batteries (+ and –) are correct.

6. Grille: This mesh protects the microphone capsule and reduces noise

from air and breath.

1. Power/Mute Button: Press this button for 2 seconds to power

the transmitter on or off. Press this button briefly to mute or unmute the transmitter.

2. Power/Mute LED: This light indicates the power or mute status:

• Red light: The transmitter is on.

• Flashing red light: The transmitter is low on battery power.
• Blue light: The transmitter is muted.

• Flashing blue light: The transmitter is muted and low on battery power.

3. Sync Button: Press this button to synchronize the transmitter

with the receiver. See Operation to learn more.

4. Display: This display shows the current channel and battery

5. Battery Compartment (not pictured): Insert 2 AA batteries into

this compartment. Make sure the polarities of the batteries (+ and –) are correct.

6. Microphone/Instrument Input (mini-XLR): Connect the included

microphone or instrument cable to this input.

7. Gain Selector: Use this switch to set the gain of the audio input

to 10 dB, 0 dB, or -10 dB. For instruments with passive pickups, we recommend setting this to -10 dB. For instruments with active pickups, you may want to set this to 0 dB or -10 dB.

Receiver Front Panel POWER

1. Power Button: Press this button to power the receiver on or off.

2. Display: This display shows the current channel, frequency, and other settings. See Display for

3. Up/Down (): Press one of these buttons to select the different modes (Manual, Autoscan,

Preset). When searching for channels, press one of these buttons to move to the next-highest or next-lowest channel, respectively.

4. Sync: Press this button to synchronize the receiver with the transmitter. See Operation to learn

5. Set: Press this button to confirm your mode selection (Manual, Autoscan, Preset) or to set the

current channel. See Operation to learn more.

6. Volume Knob: Turn this knob to adjust the receiver’s output level.

1: Ground 2: Line In 3: Mic In 4: +10V 1: Ground 2: Line In 3: Mic In 4: +10V Mic Level Line Level

1. Manual: This indicator appears when the receiver is in Manual Mode, where you can select

the channel manually. Use the Up/Down buttons to cycle between the different modes.

2. Scan: This indicator appears when the receiver is in Autoscan Mode, where the receiver

automatically selects the channel with the clearest and strongest reception.

3. Preset: This indicator appears when the receiver is in Preset Mode, where you can select

a Preset group of channels rather than having to scan the entire frequency band.

4. Sync: This indicator appears when the transmitter and receiver are synchronized.

5. GP (P1, P2, P3, P4): This is the current Preset group.

6. CH (1–8): This is the current Preset Channel.

7. CH (region-specific): This is the current channel number. The number of available

channels depends on your region.

8. Freq: This is the current frequency in MHz.

9. Mute: This indicator appears when the audio signal is muted.

10. RF: This meter shows the current level of reception between the transmitter and receiver.

11. AF: This meter shows the current audio signal level sent from the receiver’s audio outputs.

1. Antenna Terminal: Connect the included antennae to these terminals.

2. Audio Output (XLR): Use a standard XLR cable to connect this balanced output to your

guitar amplifier, mixer, PA system, etc.

3. Audio Output (1/4” / 6.35 mm): Use a standard 1/4” (6.35 mm) cable to connect this

unbalanced output to your mixer, PA system, etc.

4. Line/Mic Selector: Use this switch to select whether the signal from the receiver’s output

is line-level or microphone-level. Set this switch to Line if you are connecting it to a balanced line-level input (e.g., a mixer’s XLR or 1/4” TRS input) or an instrument amplifier’s low-impedance active instrument input. Set this switch to Mic if you are connecting it to an instrument amplifier’s high-impedance instrument-level input.

5. Squelch: Turn this knob to adjust the noise floor level.

6. Power Input: Use the included power adapter (12 V, 1 A, center positive) to connect this

input to your power source.8

Operation To set up and use your Radius 200, follow the steps in this chapter in order. If you are setting up a system using multiple receiver-transmitter pairs, set up each pair one at a time, and keep each pair powered on as you set up others.

1. Set Up the Receiver

Optional: Connect Rackmount Pieces and/or Antennas To use two receivers in a standard 19” rack, use the included rackmount brackets, coupling brackets, and screws.

To use one receiver in a standard 19” rack, use two long rackmount brackets (sold separately) and screws.

We highly recommend using the included antennas to improve and strengthen reception. You can also use an antenna booster (sold separately) to further enhance the signal. Rackmount bracket Rackmount bracket Coupling bracket Coupling bracket Receiver Receiver Receiver Long rackmount bracket Long rackmount bracket Receiver Antenna Antenna Antenna booster Antenna booster9

Set Up the Receiver’s Connections, Mode, and Channel

1. Use the included power adapter to connect the receiver's power input to your power source.

The receiver will power on automatically.

2. Use a standard XLR cable or 1/4” (6.35mm) to connect one of the receiver’s audio outputs to

your mixer or amplifier system. Do not use both audio outputs at the same time; this can result in signal loss or increased noise.

3. Set the Line/Mic Selector to the appropriate setting:

• Set this switch to Line if you are connecting it to a balanced line-level input (e.g., a mixer’s XLR or 1/4” (6.35mm) TRS input) or an instrument amplifier’s low-impedance active instrument input.

• Set this switch to Mic if you are connecting it to an instrument amplifier’s high-impedance instrument-level input.

4. Set the receiver’s channel using one of the following methods:

• Manual Mode Important: Do not place two or more transmitters within range of the receiver when selecting a channel. Also, keep the transmitter at least 3 feet (1 meter) away from the receiver.

i. Use the receiver’s Up or Down buttons to select Manual Mode. (You must press

and hold each button for approximately 1 second to switch to the next mode.)

ii. Press and hold the Set button for approximately 1 second. The display’s numbers

iii. Use the Up/Down buttons to select a channel.

iv. Press the Set button to lock the reception to that channel.

• Autoscan Mode Important: If you are setting up a system using multiple receiver-transmitter pairs, keep each pair powered on as you set up others. This will prevent each pair from automatically selecting the same channel.

i. Use the receiver’s Up or Down buttons to select Autoscan Mode (Auto). (You

must press and hold each button for approximately 1 second to switch to the next mode.)

ii. Press and hold the Set button for approximately 1 second. The display’s numbers

iii. Press the Up or Down button once. The receiver will automatically scan

frequencies and select the first channel with strong, clear reception.

iv. Press the Set button to lock the reception to that channel.

i. Use the receiver’s Up or Down buttons to select Preset Mode. (You must press

and hold each button for approximately 1 second to switch to the next mode.)

ii. Press and hold the Set button for approximately 1 second. The display’s numbers

iv. Press the Set button to lock the reception to that Preset group.

v. Use the Up/Down buttons to select a channel in that Preset group.

vi. Press the Set button to lock the reception to a channel in that Preset group.

Important: If there is any interference on the current Preset group’s channels, repeat Steps iii–vi.10

1. Remove the transmitter’s battery compartment cover and insert 2 AA batteries into the

compartment. Make sure the polarities of the batteries (+ and –) are correct.

2. Reattach battery compartment cover to the transmitter.

3. Press the transmitter’s Power Button for 4 seconds to power the transmitter on or off.

Wireless Belt-Pack Transmitter:

1. Remove the transmitter’s battery compartment door and insert 2 AA batteries into the

compartment. Make sure the polarities of the batteries (+ and –) are correct.

2. Press the transmitter’s Power Button for 2 seconds to power the transmitter on or off.

3. Synchronize the Receiver and Transmitter

1. Make sure the receiver and transmitter are within 3 feet (1 meter) from each other and

2. Press and hold the Sync button on the transmitter until Sync flashes in the receiver’s

3. Press the Sync button on the receiver.

4. Adjust Your Levels and Settings

Gain Level: If you are using a wireless belt-pack transmitter, set its Gain Selector to 10 dB, 0 dB, or -10 dB to set the gain of the audio input. Volume Level: Use the receiver’s Volume Knob to set the audio signal level sent from the receiver’s audio output to your mixer or amplifier system. Squelch Level: Use the Squelch Knob to adjust the noise floor level, minimizing background or ambient noise during silent moments. Higher settings allow for greater noise reduction and dynamic range, but a setting that’s too high can cause intentionally quieter sounds to be silenced along with the noise. Be sure to experiment with different settings to find an optimal balance.11

Troubleshooting Problem Solution The receiver does not produce any sound. Make sure the receiver’s power adapter is properly connected to the power input and a power source. Make sure the transmitter’s batteries are properly inserted and that their polarities (+ and –) are correct. Make sure the transmitter and receiver are set to the same frequency. Make sure the receiver’s audio output is properly connected to your mixer, amplifier system, etc. Make sure the receiver and transmitter are within 328 feet (100 meters) and have a clear line of sight. Also, make sure the receiver is not immediately near any metal objects or devices that could cause RF interference (other wireless systems, TVs, radio, etc.). Lower the setting of the receiver’s Squelch knob. There is audible interference in the transmission. Make sure the receiver and transmitter are within 328 feet (100 meters) and have a clear line of sight. Also, make sure the receiver is not immediately near any metal objects or devices that could cause RF interference (other wireless systems, TVs, radio, etc.). Make sure the receiver’s antennae are properly attached to its antenna terminals. If you are using multiple transmitter-receiver pairs, make sure the pairs are not using the same or adjacent frequencies. The signal is distorted. Make sure the receiver is not immediately near any metal objects or devices that could cause RF interference (other wireless systems, TVs, radio, etc.). Lower the setting of the receiver’s Volume knob.12

Appendix (English) Technical Specifications Hand-held condenser vocal microphone transmitter included with Radius 200. Headset microphone and wireless belt-pack transmitter included with Radius 200H. Lavalier/lapel microphone and wireless belt-pack transmitter included with Radius 200L. 1/4” (6.35mm) instrument adapter cable and wireless belt-pack transmitter included with Radius 200M. Specifications are subject to change without notice. Receiver UHF Band Operation

Oscillator PLL Synthesized Frequency Stability ±0.005% Modulation

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 2 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

Audio Output 1 balanced XLR 1 unbalanced 1/4” (6.35mm) Display High-visibility bac

-lit LCD with RF and AF meters Power Supply: 12 V, 1 A, center positive (adapter included) Consumption: 520 mA ±10 mA Case Half 19” EIA-rack metal case Dimensions (width x depth x height) 7.9” x 7.2” x 1.7”

Transmitters UHF Band Operation 520–937.5 MHz (region-specific) Channel Selection Synchronization with receive

RF Power Output 10 mW (maximum) Oscillator PLL Synthesized Frequency Stability ±0.005% Deviation ±20 KHz with limiting compresso

Spurious Emission > 60 dB below carrier frequency THD < 1% (at 1 KHz) Tone Signal

2.4 VDC (1.2V via 2 AA batteries)

Trademarks and Licenses Alto Professional is a trademark of inMusic Brands, Inc., registered in the U.S. and other countries. All other product or company names are trademarks or registered trademarks of their respective owners.altoprofessional.com