Audio2000'S® AWM6074U

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AWM6074U - UHF Dual-Channel Wireless Microphone Systems

The Audio2000'S® AWM6074U wireless system is a dual-channel UHF wireless microphone system.   Similar to the other Audio2000'S® wireless systems, various transmitter options are provided to the AWM6074U system users as follows:

AWM6074U Dual Channel UHF Wireless Microphone System with Two Handhelds
(
SKU# AWM-6074U     UPC: 844565005175)

  

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1.     AWM6074UF Dual Channel UHF Wireless Microphone System with 2 Headband Headsets & 2 Lapel Lavalier Microphones (SKU# AWM-6074UF   UPC: 844565005205)

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AWM6074HS Dual Channel UHF Wireless Microphone System with 2 Headset Microphones
(SKU# AWM-6074HS    UPC: 844565016164)

 

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AWM6074UL Dual Channel UHF Wireless Microphone System with Handheld and Lavalier Lapel
(
SKU# AWM-6074UL   UPC: 844565015860)

 

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AWM6074UM Dual Channel UHF Wireless Microphone System with 2 Lapel Lavalier Microphone
(SKU# AWM6074M  UPC: 844565015853)

       

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AWM6074UZ Dual Channel UHF Wireless Microphone System with 2 headsets & Lapel Lavalier Microphones
(SKU# AWM-6074UZ   UPC: 844565005199)   

 

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With the exceptional RF transmission and reception, the AWM6074U system, with a transmission range of more than 100 feet, fully delivers all the reception and audio quality features that allow you to really enjoy the freedom of wireless without any of the problems.

Engineered For Dependable UHF Systems

As all the other Audio2000'S® wireless products, the AWM6074U system has been engineered to be dependable UHF system with a wide audio frequency range, high S/N ratio, and outstanding performance equal to that of any professional wireless systems costing much more.  This is achieved through strict component selection and high quality circuit design.  A delicately designed silence circuit eliminates static noise when the transmitters are either turned off or out of transmission range.  An auto mute circuit is incorporated in these systems to effectively eliminate the popping noise when the switch is turned on or off.

System Designed For Accessibility

The AWM6074U system has been designed and manufactured to be dependable, problem free, versatile and easy to use.  The AWM6074U system is intended to be readily accessible to everyone with exceptional performance at a preferred and affordable price.

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APPLICATIONS

Musician; disc jockey (DJ); karaoke jockey (KJ); church; school; conference room; karaoke; home entertainment

AWR6074U RECEIVER

FEATURES

* UHF Band Frequency (571 - 598 MHz)
* Two Independent XLR Balanced Outputs
* One 1/4"
Unbalanced Audio Output
* RF Input with Built-in RF Preamplifier to Improve S/N Ratio, Sensitivity and Dynamic Range
* Low Noise Mixer Circuitry for Reducing interference
* 12V-18V DC Power Supply

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SPECIFICATIONS

Carrier Frequency Range

 571 - 598 MHz

Frequency Stability

 ± 0.005%

Receiving Sensitivity

 -105 dBm

S/N Ratio

 80dB

T.H.D.

 < 1%

Audio Output

 ¼” and XLR (0 – 300mV @ 600 Ohms)

Dimensions (W X H X D)

 8.5” X 1.6” X 5.4” (215 X 40 X 138 mm)

         AWX6070, AWX6070M & AWX6070H TRANSMITTERS

FEATURES

* UHF Band Frequency
* High Sensitivity Cardioid Microphone Capsule
* Audio Level Adjustment Knob for the AWX6070M and AWX6070H
* Noise Reduction Mechanism for Eliminating Handling Noise and Switch Shock Noise

* Low Battery LED Indicator

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SPECIFICATIONS

TRANSMITTER

Carrier Frequency Range

 571 - 598 MHz

Frequency Stability

 ± 0.005%

Modulation

 Frequency Modulation (FM)

Modulation Depth

 40KHz

Output Power

 30mW, Max

Spurious Emission

 > 55 dB

Battery

 9V Battery

Current Consumption

 < 40 mA

Dimensions (W X H X D)

Handheld: 9.3” X 2.0” X 2.0” (235 X 50 X 50 mm)
Belt-Pack: 2.6” X 4.1” X 1.0” (65 X 105 X 25 mm)

SYSTEM

Carrier Frequency Range

 571 - 598 MHz

Frequency Stability

 ± 0.005%

Audio Frequency Response

 80 – 15,000 Hz

Image and Spurious Rejection

 50 dB Minimum

S/N Ratio

 > 80 dB

Max. SPL

110 dB

T.H.D.

 < 1%

Service Area

 300 ft (Outdoors)-Line of Sight
 15
0 ft (Indoors)-Line of Sight

Operation Temperature

 14 °F – 122 °F (-10 °C – +50 °C)

 

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OPERATIONS


SYSTEM OPERATION

(I)     HANDHELD MICROPHONE SYSTEM
 

  1. Set the antennas at an angle 45  from the floor and 90  away from each other to achieve the best RF reception.

  2. Connect the AWR6074U receiver DC input to an AC power source via the supplied AC/DC adaptor.

  3. Connect the AWR6074U receiver audio output to the microphone input of a mixer via the supplied audio cable or any other appropriate cable.  (Note: There are two outputs: one unbalanced output and one balanced output.)

  4. Place one 9V battery into the battery housing of the AWX6070 microphone with the battery polarity oriented as indicated.

  5. Turn on the power of the AWR6074U receiver. The Power On LED light will be turned on.

  6. On the AWX6070, the On/Off switch has three positions: “ON”, “MUTE” and “OFF”. When the On/Off switch is turned to the “MUTE” or directly to the “ON” position, the low battery LED indicator will blink once and then stay off. If the low battery LED indicator stays on, the 9V battery needs to be replaced. When the On/Off switch is set to the “MUTE” or “ON” position, the corresponding channel 1 RF LED light or channel 2 RF LED light on the AWR6074U receiver will be turned on. The corresponding channel 1 AF LED light or channel 2 AF LED light will be on whenever the AWX6070 receives any sound while the On/Off switch is set at the “ON” position.

  7. Adjust the volume control knob on the AWR6074U receiver to have an optimal sound quality.

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(II)   LAPEL (LAVALIERE)  MICROPHONE SYSTEM 

  1. Set the antennas at an angle 45  from the floor and 90  away from each other to achieve the best RF reception.

  2. Connect the AWR6074U receiver DC input to an AC power source via the supplied AC/DC adaptor.

  3. Connect the AWR6074U receiver audio output to the microphone input of a mixer via the supplied audio cable or any other appropriate cable.  (Note: There are two outputs: one unbalanced output and one balanced output.)

  4. Place one 9V battery into the battery housing of the AWX6070M transmitter with the battery polarity oriented as indicated. Connect the supplied lapel (lavaliere) microphone to the AWX6070M transmitter.

  5. Turn on the power of the AWR6074U receiver. The Power On LED light will be turned on.

  6. On the AWX6070M, the On/Off switch has three positions: “ON”, “STDBY” and “OFF”. When the On/Off switch is turned to the “STDBY” or directly to the “ON” position, the low battery LED indicator will blink once and then stay off. If the low battery LED indicator stays on, the 9V battery needs to be replaced. When the On/Off switch is set to the “STDBY” or “ON” position, the corresponding channel 1 RF LED light or channel 2 RF LED light on the AWR6074U receiver will be turned on. The corresponding channel 1 AF LED light or channel 2 AF LED light will be on whenever the AWX6070M transmitter receives any sound while the On/Off switch is set at the “ON” position.  The audio level adjustment knob is preset at midpoint. If you need to increase the audio level, use a screwdriver to turn the audio level adjustment knob clockwise. Turn the audio level adjustment knob counter-clockwise to reduce the audio level.

  7. Adjust the volume control knob on the AWR6074U receiver to have an optimal sound quality.

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(III)  HEADSET MICROPHONE SYSTEM 

  1. Set the antennas at an angle 45  from the floor and 90  away from each other to achieve the best RF reception.

  2. Connect the AWR6074U receiver DC input to an AC power source via the supplied AC/DC adaptor.

  3. Connect the AWR6074U receiver audio output to the microphone input of a mixer via the supplied audio cable or any other appropriate cable.  (Note: There are two outputs: one unbalanced output and one balanced output.)

  4. Place one 9V battery into the battery housing of the AWX6070H transmitter with the battery polarity oriented as indicated. Connect the supplied headset microphone to the AWX6070H transmitter.

  5. Turn on the power of the AWR6074U receiver. The Power On LED light will be turned on.

  6. On the AWX6070H, the On/Off switch has three positions: “ON”, “STDBY” and “OFF”. When the On/Off switch is turned to the “STDBY” or directly to the “ON” position, the low battery LED indicator will blink once and then stay off. If the low battery LED indicator stays on, the 9V battery needs to be replaced. When the On/Off switch is set to the “STDBY” or “ON” position, the corresponding channel 1 RF LED light or channel 2 RF LED light on the AWR6074U receiver will be turned on. The corresponding channel 1 AF LED light or channel 2 AF LED light will be on whenever the AWX6070H transmitter receives any sound while the On/Off switch is set at the “ON” position. The audio level adjustment knob is preset at midpoint. If you need to increase the audio level, use a screwdriver to turn the audio level adjustment knob clockwise. Turn the audio level adjustment knob counter-clockwise to reduce the audio level.

  7. Adjust the volume control knob on the AWR6074U receiver to have an optimal sound quality.

 

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OPERATION NOTES 

  1. The AWX6070, AWX6070M, or AWX6070H needs to be turned off before changing the 9V battery.

  2. Signal dropout or unexpected noise may be caused by a low battery or by an excessive distance between the transmitter and the receiver.  If you encounter signal dropout or unexpected noise, please check the battery first.  If battery is still fresh, try to readjust the antennas on the AWR6074U receiver.

  3. Avoid placing the receiver in a corner to prevent any RF reception deterioration.

  4. Avoid placing the receiver antennas close to an obstruction or close to any metal surface.

  5. Try to place the receiver as far away from any digital equipment, including computers and some CD players, as possible.

  6. If more than one AWM6074U wireless microphone systems are stacked together or placed in a rack, do not let the antennas touch each other or cross each other.

  7. Before the AWM6074U is to be used in a new location, place the AWR6074U receiver at the intended location and walk-through the area with the transmitter to locate any radio frequency blind spot, where a momentary loss of sound or short period of noise may occur whenever the transmitter is moved to this spot.

  8. Do not drop the transmitter on the floor or strike the transmitter with any object.

  9. Always turn off the transmitter and remove the battery if the transmitter is not to be used for a period of time to prevent the transmitter from being damaged by a leaking battery.

 

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TROUBLESHOOTING

 

PROBLEM

POSSIBLE CAUSES

SOLUTIONS

No sound.

Receiver is off.

Turn on receiver.

Transmitter power switch is off.

Turn on transmitter power switch.

No battery or bad battery in transmitter.

Insert or replace battery.

Wrong polarity or faulty battery contact

Correct polarity or battery contact.

Receiver audio cable is missing or defective.

Connect, repair or replace cable.

Short range or signal dropouts.

Low transmitter battery level.

Replace transmitter batteries.

Poor antenna reception.

Reposition antenna or receiver.

Faulty transmitter antenna.

Return transmitter to factory or authorized service station for service.

Too many obstacles between the receiver and transmitter.

Move the obstacles or move the receiver away from nearby metal objects.

Signal Interference.

Another wireless microphone operating on the same frequency

Use a wireless microphone with different operating frequency.

Placement too close to a digital signal processor or similar device (CD player, stage lighting, etc.).

1.       Select another operating frequency

2.       Move receiver to another location

External electromagnetic field source

1.       Select another operating frequency.

2.       Remove source of interference

Distortion.

Low transmitter battery level

Replace transmitter batteries.

AF Level control on the transmitter set too high, overloading the receiver circuit.

Turn down the AF Level control on the transmitter.

Volume control on the receiver set too high, overloading the subsequent sound device input.

Turn down the volume control on the receiver.

Momentary loss of sound when transmitter is moved around the performing area.

Radio frequency (RF) blind spots.

Reposition the receiver.  If the momentary loss of sound problem cannot be removed, walk through the performing area and mark “Blind” spots.  Avoid these “Blind” spots during performance.

Low sound level.

Faulty cable connection.

Check cable connection between the receiver and the subsequent sound device.

Receiver volume control set too low.

Turn up receiver volume control.

Sound levels between two microphones are different.

The receiver volume control and/or  the microphone AF Level control need to be adjusted.

1.       Adjust the transmitter gain control as necessary.

2.       Adjust the receiver volume control as necessary.

 

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