Azden CM-20D Omni-Directional Wireless Microphone User Manual

Azden CM-20D Omni-Directional Wireless Microphone

Important Safety Instructions

1. Read these instructions for use.
2. Keep these instructions in a safe place.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as central heating radiators, electric heaters, stoves, or other units that produce heat (e.g. amplifiers).
9. Only use attachments/accessories specified by the manufacturer.
10. use only with the cart, stand, tripod, bracket, or table specified by the manufacturer , or sold with the unit. When a cart is used, use caution when moving the cart/unit combination to avoid injury from tip-over
11. Unplug during lightning storms or when unused for long periods of time.
12. Refer all servicing to qualified service personnel. Servicing is required if the unit has been damaged in any way , such as mains cable or plug damage, liquid has been spilled, objects have fallen inside, the unit has been exposed to rain or moisture, does not operate properly or has been dropped.

Maintenance and Care

Do not attempt to service this unit yourself as opening or removing covers may expose dangerous voltage or otherhazards. Refer all servicing to qualified service personnel. Clean only with a dry cloth. Do not use detergents or other liquids.

Replacement parts

When replacement parts are required, be sure the service technician uses replacement parts specified by the manufacturer or those that have the same characteristics as the original part.
Unauthorized substitutions may result in fire, electric shock, or other hazards.

Safety check

Upon completion of any service or repairs to this unit, ask the service technician to perform safety checks to determine that the product is in proper operating condition.

Handling Care for Ni MH battery

1. To prevent the battery break, carefully read this manual.

2. The operation environment of the battery is 2060. If the operation temperature is out of this range, the battery may be damaged.

3. Don’t leave the battery inside of the car under direct sunshine, don’t face the battery for direct sunshine, and don’t keep the battery beside the heater. Also, don’t use the batter at a very cold place, which is zero degrees or less than zero.
   Such an environment may make short life and damage goods.

4. Don’t put the battery in the slot water and watery.

5. Inside of battery, it includes an alkaline liquid. If the liquid touches to hands, skin, etc., immediately wash them.

Prohibition:

• Don’t throw away the battery in the fire and don’t make warm it.
• Don’t soldering it directly.
• Minus and plus terminal, don’t connect by needle, cable, etc
• Don’t set the battery + – terminal in reverse.
• Don’t disassemble and assemble.
• Don’t throw it away and put high pressure on it.
• Recharging users only our accepted recharge.
• Don’t insert the battery into the car’s external battery socket, or wall socket.
• Don’t use any other equipment without our permission.

Introduction

Thank you for selecting the Azden “RED” infrared system as your wireless solution. We are confident that it will perform beyond your expectations. For over 40 years Azden Corporation has been creating technologically advanced products. By taking advantage of the latest in CAD design and SMT production techniques, Azden’s engineers are able to produce products that exceed the published specifications and perform well beyond the warranty period.
Azden “RED” represents a breakthrough in wireless. Instead of the normal radio waves that other wireless systems use, Azden “RED” uses invisible light beams in the infrared range. Through the use of infrared, you will no longer be plagued by outside interference. “RED’s” enhanced performance assures you of the finest in audio clarity and reliability. The specially selected high- frequencies provide you with trouble-free performance, even in fluorescently lit rooms. Like all infrared, Azden “RED” will not operate correctly outside in the sunlight. In the real world, the ability to use multiple systems in the same location without frequency interference will prove to be a tremendous benefit to you. Using infrared means that the audio generated in your room stays in your room. Your discussions cannot be overheard on other systems in other rooms. Designed by professionals – for professionals, Azden “RED” will provide you with years of worry-free, high-quality performance.

Feature

• Receiver
  New circuit design for minimizing the interference with the Plasma display A new method for eliminating the strident noise. Don’t get interference by another generally used wireless method like UHF and VHF At the same location, even in adjacent rooms, the same package can be used without any interference. Internal sensors can cover an open area of up to 144 square meters under transmitter high power mode and 108 square meters with Lo mode. Up to max. three external sensors can be extended depending on the size of the room. Three types of sensors are available as option items. Aden Newly designed state-of-the-art Crystal Servo technology for frequency-stable transmitting.

• Sensor
  One is IRD-10, which can fly to 10m distance on the line of sight. IRD-30, which can cover up / down and right/left sides 120 degrees up to 15m in a straight direction, and IRD-60 called “Dome sensor” can cover 360-degree area reception up to 15m half-diameter.

• Microphone/Transmitter
  Three types of microphones, handheld, pendant, and tabletop, are available depending on users’ needs.
  Handheld microphone IRH-15c utilizes two emitters at the bottom and top for transmitting audio in an around 360-degree direction. Up to 20m distance in line of sight can fly constantly.
  High and low switches for the selection of emitting power depend on the size of the location and for extending the life of the battery.
  Two-channel settings on IRH-15c, IRB-10c, and IRN-10 can be switched to either channel on the spot by just sliding the switch.
  IRB-10c allows speakers for hands-free action thanks to a pendant or body clip wearing. Use IRN-10 if the speakers are installed on the ceiling by adjusting the mic gain.

System Configuration

Installation case beside Plasma Display Monitor

IRR-30 Receiver Set up

I. Receiver Front Panel:

1. Power Switch – turns the receiver On and Off.

2. Power LED – indicates the power state of the receiver.

3. Receiving Sensors – internal receiving infrared sensors.

4. Channel 1 Volume – adjusts the output volume for Channel 1.

5. Channel 1 Indicator – glows green when connecting Channel 1.

6. Channel 2 Volume – adjusts the output volume for Channel 2.

7. Channel 2 Indicator – glows green when connecting Channel 2
   II. Receiver Rear Panel
   

8. Switched External Sensor Input (F connector) – Plugging an external sensor in here turns the front panel sensor (3) off.

9. 2-External Sensor Inputs (F connector) – Plugging external sensors in her extends the receiver’s potential working distance.

10. Input Selector – selects either Mic (-20dB max @ 1.5K ohms) or Line (+4dB max @ 1k ohms) level for the output jack (10).

11. Output Jack – connects the receiver to a mixer or audio amplifier/speaker combination (1/4 inch connector). In general, choose MIC when attaching to a mixer input and LINE when attaching to an amplifier input.

12. Power Input – plug-in AC-DC adapter (BC-27) to power receiver (12VAC-1.6A)
    Don’t use the other one besides our recommendation.

III. Mounting the Receiver:
As infrared operates “line-of-sight” and can be interrupted by any solid object, it is strongly suggested that the receiver (or external sensors) be mounted or placed in a location that puts the receiving sensors above the audience’s heads or any other obstacles.

IV. Powering the Receiver:
The IRR-30 is powered by an AC-DC power supply(BC-27). Before turning the receiver ON be sure to plug it into an active 110-220VAC wall socket and into the rear of the IRR-30 (12). DO NOT USE any power supply except our standard.

IRR-15 Receiver Set up

i. Receiver Front Panel:

1. Power/Volume control – turn the receiver On and Off, adjust the mic output gain.

2. Power LED – Indicate the power state of the receiver. ( RED: Power on, Green: Receiving signal)

3. Receiving Seonsor – internal receiving infrared sensors.
   II. Receiver Rear Panel:

4. Mic/Line output – output both mic and line input signal. connects to audio amplifier/mixer aux input.

5. Line input – input line level signal in here

6. Mic output – connects the receiver to audio amplifier/mixer mic input.

7. External sensor input – Plugging an external sensor in here.

8. Plug in AC adapter(BC-27) to power receiver. Don’t use other one beside of our recommending.

IRB-10c Transmitter

1. Batteries for the IRB-10c:

The IRB-10c uses two “AA” batteries for power. They are placed in the battery compartment. After sliding the battery case door off, carefully place FRESH batteries in the compartment in the directions shown on the sticker. OBSERVE PROPER POLARITY! The IRB-10c can use either Alkaline or Ni-MH batteries. In the case of rechargeable batteries, be sure that they are FULLY CHARGED before use. Battery life depends on the type of battery used.

2. Frequency Selection:
   The IRB-10c can be set to transmit on either one of two preset frequencies. This is so that two different speakers can talk at the same time in the same room. While it does not matter which frequency is chosen for the body-pack, two transmitters cannot share the same frequency at the same time. To select the desired frequency (channel) slide the switch (8) as shown on the sticker on the back of the battery door.

3. Power Mode Selection:

The IRB-10c has two Power Modes – Lo and Hi. These modes can be selected via a switch (7) inside the battery compartment, and affect two areas related to performance- battery life and area coverage. If the body pack is switched to the Hi position (7 – to the right) the range is set to maximum (approximately 144 square meters (1600 square feet)) while the battery life is reduced to approximately 10 hours with Alkaline batteries. If, on the other hand, the body-pack is switched to Lo the operating range is reduced to approximately 108 square meters (1200 square feet) and the battery life increases to approximately 15 hours with Alkaline batteries. Experimentation is the only way to know which position is best for your room. We suggest, however, that it is always best to use the Lo position if possible as that provides the most economical use.

4. Adjusting MIC Gain:

The MIC gain (volume) is adjustable to compensate for various microphone element characteristics. The adjustment (9) is located in the battery compartment and can be adjusted using the provided tool. While speaking into your microphone, adjust the gain(more gain-clockwise rotation, less gain- counterclockwise rotation) until the desired volume level is achieved. The best results are normally achieved when the gain control on the IRB-10c body- pack and the volume control on the IRR-30 receiver (4 or 6) are both at their mid-points.

5. Using the IRB-10c:
   After inserting fresh batteries, the IRB-10c can be powered by sliding the ON/OFF Switch (4) to the ON position. The Power LED will glow when the IRB-10c is powered ON as will the red LED on the front panel of the IRR-30 which corresponds to the chosen channel. Be sure to slide the Power Switch to OFF when not in use to preserve battery life. The Power LED on the mic will turn from green to red to indicate “Low Battery”. The emitter (1) must be plugged into the IRB-10c (3) and either attached to the clothing with the clip (2) or worn around the neck with the lanyard as described in section V. The emitter acts as the transmitter and, for best results, should be worn in such a way as to have a clear path to the receiving sensor(s). The IRB-10c can be attached to the belt or other clothing by way of the metal belt clip. It is suggested that the body pack be worn in the front portion of the body to avoid the possibility of damaging it.

6. Attaching and Using the Lanyard with the IRE-10 Emitter:
   As described above, the emitter(1) can be attached to clothing using the built-in clip. To attach, insert the metal clip through the holes (2) on the lanyard’s clear plastic slide.

IRN-10 Transmitter

1. Power switch – turn ON/OFF the transmitter by sliding the switch.
2. Power LED – Glow GREEN when the transmitter is ON.Glow RED when the battery is low.
3. Battery door – When replacing the battery slide it down to open.
4. Extarnal Mic input jack – Plug the ext. mic into the jack, then internal mic will be disabled.
5. Power input – Plug the charger jack into the port.
6. Charge LED – Glow RED when when charging.
7. Channel switch – Slide the switch to select the frequency.
8. Mic gain adjustment point – Use a very tiny Philip-type screwdriver for turning the inside screw.

By turning the screw to the counterclockwise, the gain goes up and down. Find the optimum gain by turning the screw while lessening the speech through a speaker. If howling appears, this phenomenon can be minimized by adjusting the internal microphone level through this feature. The best solution to avoid the howling is to use a uni-directional microphone like our HS-11(headset mic), EX-505U (lavalier type), etc

IRH-15c Handheld Microphone

Infrared handheld mic.: IRH-15c

1. Microphone head

2. Power Indication LED
   The green color is indicated when the power is on. If it is red in color, battery charging is required. Charge the batteries with an AC/DC adapter(BC-29) or replace them with fresh 2-“AA” Alkaline batteries.

3. Power On switch
   The mic. start working by sliding the switch to the ON position with proper frequency. About frequency setting refer to clause 8.

4. Microphone case

5. Infra-red emitting point
   Audio is transmitted from this point. Don’t cover this point by hand or any other materials.

6. Another Infrared emitting point
   Also, don’t cover this part. Hold the battery cover area when you are in operation.

7. Battery cover
   2-The “AA” rechargeable NI-MH battery is packed as a standard item. Only the original NI-MH battery can be recharged with an AC/DC adapter. 2-“AA” alkaline is our recommendation as a dry battery.

8. Frequency Selection (CH1/CH2) and output power Hi/Lo
   The IRH-15c can be set to transmit on either one of two preset frequencies. This is so that two different speakers can talk at the same time in the same room. Select the desired one by using a ballpoint pen. Output power also can be changed Hi/Lo. If the distance between the microphone and the receiver is very near, set it to Lo to save battery life. At Lo position, the battery life is approx. 8 hours. (when using Azden original battery after full charging). At Hi position. the battery life is approx. 6 hours.

The IRD-10/30/60 External Sensor

To increase the working range of the system, up to three external sensors can be added. External sensors are powered by the receiver and can be plugged into the “EXT.SENSOR INPUTS” (9) on the rear panel. Plugging into inputs 1 and/or 2 (9) adds to the built-in front sensor (3) and extends the working range by 15m with IRD-10, 15m in a straight direction with IRD-30, and 15m half-diameter range in 360 degrees. Plugging into input 3 (9) automatically disconnects the front panel sensor. This way, if the front panel sensor is blocked (perhaps in a secured cabinet or closet) it can be replaced.

Guide for sensor installation IRD-10

Fix the installing bracket by screws firmly

1. The black color side should face the near side when fixing the bracket.

Vend the bracket 90 degree to front.

2. Fix screws

Screw pitch: 30mm and 24mm Black color side

3. Slide the sensor unit for hooking up to the bracket.

Adjusting the angle of the bracket for sliding the sensor much easily.

The microphone emitter and sensor top surface face vertically is best position. Adjust the angle for suitable angle.

Charger

About the AC/DC adapter
Use Azden’s recommended AC/DC adapter for recharging the battery on the transmitter unit.

• BC-27 for IRR-15 / IRR-30
• BC-29 for IRB-10c / IRN-10 / IRH-15c

Troubleshooting

The single most important thing to ALWAYS check when trouble arises is the battery.
Make sure they are fresh and the POWER LED is glowing brightly.

SYMPTOM CAUSE N O POWER LED

• Receiver switch Is set to “OFF’- change to “ON”
• The external 12V DC power source is not connected or is malfunctioning
• Dead or very weak battery in body-pack or handheld

No audio from body-pack

• Make sure the volume on the receiver is turned up for the appropriate channel and the body-pack is powered ON
• If two body-packs are being used, make sure they are set to different frequency channels
• If using an external mic, make sure it is plugged in to the body pack properly and the internal gain control has been adjusted.

No audio from handheld mic

• Make sure the volume on the receiver is turned up for the appropriate channel and the handheld mic is powered ON
• If two handheld mics are being used, make sure they are set to different frequency channels

Intermittent audio

• Make sure there is a clear path between the emitter and the receiving sensor. Best results are obtained when the receiving sensors are mounted high – above everyone’s head Limited working range a. Install extra external sensors

• If using a body-pack, set the Power Mode to Hi.

• Make sure all emitting points on the transmitters are covered by hands, towel etc.
  Move them and face the emitting point to the receiver direction.

• Make sure all emitting points on the transmitters are wet. Make clean with dry towel.

• Make sure direct sunlight or any strong light is coming into the sensor.
  Be careful the mounting position of external sensor or the facing direction of internal sensor.

Microphone Suggestions

In addition to the attached uni-directional microphone, any one of many fine external microphones can be used. In the case of head or collar-worn mics, it would be possible to increase the gain (volume) without adding feedback noise. This is due to the proximity of the mic element to the speaker’s mouth. Any of the following Azden microphones will produce excellent results.
EX-503 Omni-directional Lavalier EX-505U Uni-directional Lavalier HS-12 Behind head version of HS-1 1 HS-11 Uni-directional Headset HS-9 Omni-directional Headset CM-20D Uni-directional Collar-worn Regulation

CE Declaration of Conformity

This equipment is in compliance with the essential requirements and other relevant provisions of Directives 89/336/EC or 73/23/EC. Before putting the equipment into operation, please observe the respective country-specific regulations!

FCC Rules

This equipment has been tested and found to comply with the limits of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and the receiver.
3. Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician for help. The user’s manual or instruction manual for an intentional or unintentional radiator shall caution the user that changes or modifications are not expressly.

Specification

IRR-15/IRR-30 Receiver

• Sub-carrier Frequency: 2.06MHz&2.56MHz IRR-15: 1CH IRR-30:2CH
• Type: Super Heterodyne-Crystal Controlled
• Modulation: FM
• S/N Ratio: More than 90dB
• Reception Sensitivity: More than 25dBμV
• Audio Output Adjustment: Mic:-20dB maxLine: 0dB max
• Audio Output Impedance: Mic: Less than 1.5kΩLine: Less than 1kΩ
• Power Requirement: 12V DC 350mA
• Size: 100(W) x 161(D) x 44(H)mm (IRR-15) 215(W) x 210(D) x 44(H)mm (IRR-30)
• Weight: 530g (IRR-15) 1.15kg(IRR-30)

IRH-15c

• Sub-carrier Frequency: 2.06MHz&2.56MHz
• Modulation: FM
• Microphone Element Type: Uni-Directional Dynamic
• Battery Type:
  • 2-“AA” Alkaline (1.5V x 2)
  • 2-“AA” rechargable Ni-MH or Ni-Cd(1.2 x 2)
• Battery Life:

  • 8 hours w/alkaline batteries -low power mode

  • 5 hours w/alkaline batteries -high power mode

• Size: 240 x 58mm
• Weight: 300g w/alkaline batteries

IRB-10c

• Sub-carrier Frequency: 2.06MHz&2.56MHz Switchable
• Modulation: FM
• Microphone Element Type: Electret Condenser
• Frequency Response: 50-10kHz 3dB
• Battery Type:
  • 2-“AA” Alkaline (1.5V × 2)
  • 2-“AA” rechargable Ni-MH or Ni-Cd(1.2 x 2)
• Battery Life: >10hours w/alkaline batteries -low power mode >Shours w/alkaline batteries -high power mode
• Size: 100(H) × 64(W) × 27 (D)mm
• Weight: 140g w/alkalaine batteries

IRN-10

• Sub-carrier frequencies: 2.06MHz or 2.56MHZ
• Modulation: FM
• Microphone element type: Uni-directional electret × 2
• Frequency response: 3dB
• Ext Mic Input Jack: 3.5mm
• Battery type: 2-“AA” Alkaline (1.5V × 2) 2-“AA” rechargeable Ni-MH or Ni-Cd(1.2 × 2)
• Battery life: >10hours w/alkaline batteries- low power mode > 8 hours w/alkaline batteries- high power mode
• Size: 80(H)x70(W)x27(D)mm
• Weight: 120g- Transmitter w/alkaline batteries 62g Transmitter w/o alkaline batteries

IRD-10/30/IRD-60

• Output: F-Connector(IRD-30/60) / RCA-Connector(IRD-10)
• Power: Powered by receiver (24V 10mA)
• Size:
  • 52(W)x27(H)x73(D)mm (IRD-10)
  • 72.5(W)27(H)50(D)mm (IRD-30)
  • 10030mm (IRD-60)
• Weight:
  • 210g Included 10m cable and bracket(IRD-10)
  • 90g Included mounting bracket (IRD-30)
  • 170g Include mounting bracket (IRD-60)

FAQs

Is the Azden CM-20D easy to set up?

Yes, the Azden CM-20D is designed for easy setup, and it comes with clear instructions to help you get started quickly.

What is the operating range of the wireless microphone?

The Azden CM-20D has an impressive operating range of up to 100 feet, providing flexibility in your audio recording setup.

Can I use the Azden CM-20D with multiple devices simultaneously?

No, the Azden CM-20D operates on a single-channel frequency, so it's not designed for simultaneous use with multiple devices.

How long does the battery last on a single charge?

The Azden CM-20D offers a battery life of approximately 8 hours on a full charge, ensuring extended recording sessions.

What type of microphone element does it use?

The Azden CM-20D features a high-quality condenser microphone element for clear and professional audio capture.

Is it compatible with DSLR cameras and smartphones?

Yes, the Azden CM-20D is versatile and can be used with DSLR cameras and smartphones equipped with a compatible audio input.

Does it come with a windscreen for outdoor recording?

Yes, the microphone includes a foam windscreen to reduce wind noise during outdoor recording sessions.

What is the frequency response of the Azden CM-20D?

The microphone has a frequency response of 50Hz to 18kHz, capturing a wide range of audio frequencies.

Is there a warranty included with the Azden CM-20D?

Yes, Azden provides a 1-year warranty for the CM-20D Omni-Directional Wireless Microphone.

Can I use it for live performances and interviews?

Absolutely, the Azden CM-20D is suitable for live performances, interviews, and various audio recording applications.

How do I charge the microphone's battery?

You can charge the microphone's battery via the included USB cable and a compatible USB power source, such as a computer or USB charger.

Is there a mobile app for adjusting microphone settings?

Yes, Azden offers a mobile app that allows you to adjust microphone settings and monitor audio levels conveniently.

What should I do if I encounter interference during recording?

If you encounter interference, try changing the microphone's frequency channel to find a clear signal, and ensure there are no nearby electronic devices causing interference.

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