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Wireless Systems
|
AWM6528U
- UHF Four-Channel Wireless Microphone
System
The Audio2000'S®
AWM6528U wireless system is a UHF
four-channel wireless microphone system. Similar to
the other Audio2000'S®
wireless systems, various transmitter options are
provided to the AWM6528U system users as follows:
Handheld Wireless Microphone System -
AWM6528U (AWR6528U + 4 X AWX6528's)
(SKU# AWM6528U UPC: 844565016478)
Handheld & Lavaliere
Wireless Mic. System -
AWM6528UE
(AWR6528U + 2 X AWX6528's + 2 X AWX6528M's)
(SKU# AWM6528UE UPC: 844565016485)
 
Handheld & Headset
Wireless Microphone System -
AWM6528UM (AWR6528U + 4 X AWX6528M's)
(SKU# AWM6528UM UPC: 844565016508)
With the exceptional RF transmission and reception, the
AWM6528U 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. A rack-mount kit is
included so that the AWM6528U system can be
rack-mounted.
Engineered For Dependable UHF Systems
As all the other Audio2000'S®
wireless products, the AWM6528U 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.
Design with Versatility in Mind
The versatile
AWM6528U system includes four Independent XLR balanced
audio outputs, one mixed XLR balanced audio
output, and one mixed 1/4" (TS) unbalanced audio output.
The users can use the four Independent outputs to individually adjust the sound
effect of each wireless microphone channel, or they can use the mixed output to
use only one input channel on a mixing device.
System Designed For Accessibility
The AWM6528U system has been
designed and manufactured to be dependable, problem free, versatile and easy to
use. The AWM6528U 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
AWR6528U
RECEIVER
FEATURES
* UHF Band Frequency
(571
- 598 MHz)
* Four Independent XLR Balanced
Audio Outputs
* One 1/4" (TS) Unbalanced Mixed 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
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 |
XLR (0 – 300mV @ 600
Ohms) |
AWX6528,
AWX6528M, and AWX6528H TRANSMITTERS
FEATURES
* UHF Band Frequency
(571
- 598 MHz)
* High Sensitivity Cardioid Microphone Capsule
* Audio Level Adjustment Knob for the AWX6528M and
AWX6528H
* Noise Reduction Mechanism for Eliminating Handling Noise and Switch
Shock Noise
* Low Battery LED Indicator
SPECIFICATIONS
|
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 |
AA
Batteries X 2 |
|
Current Consumption |
< 40 mA |
|
Carrier Frequency Range |
571
- 598 MHz |
|
Frequency Stability |
±
0.005% |
|
Audio Frequency Response |
80 – 15,000Hz |
|
Image and Spurious
Rejection |
50dB Minimum |
|
S/N Ratio |
> 80dB |
|
Max. SPL |
110dB |
|
T.H.D. |
< 1% |
|
Service Area |
100
ft (30 M) |
|
Operation Temperature |
14 °F
– 122 °F (-10 °C
– +50 °C) |
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OPERATIONS
SYSTEM OPERATION
(I) HANDHELD
MICROPHONE SYSTEM
-
-
-
-
Place two AA
batteries into the battery housing of the AWX6528
microphone with the battery polarity oriented as indicated.
-
Turn on the power of the AWR6528U
receiver. The Power On LED light will be turned on.
-
On the AWX6528,
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 AA batteries
need to be replaced. When the On/Off switch is set to the “MUTE” or “ON”
position, the RF LED light of the corresponding
channel on the AWR6528U receiver will be turned
on. The
the AF LED light of
the corresponding channel
will be on whenever the AWR6528U receives any
sound while the On/Off switch is set at the “ON” position.
-
Adjust the volume control knob on the
AWR6528U receiver to have an optimal sound
quality.
-
-
-
-
Place one 9V battery into the battery
housing of the AWX6528M transmitter with the
battery polarity oriented as indicated. Connect the supplied lapel
(lavaliere) microphone to the AWX6528M
transmitter.
-
Turn on the power of the AWR6528U
receiver. The Power On LED light will be turned on.
-
On the AWX6528M,
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
RF LED light of the corresponding channel on the
AWR6528U receiver will be turned on. The
AF
LED light of the corresponding channel
will be
on whenever the AWR6528U 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.
-
Adjust the volume control knob on the
AWR6528U receiver to have an optimal sound
quality.
OPERATION NOTES
-
The AWX6528 or AWX6528M needs to be turned off before
changing the batteries.
-
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 AWR6528U
receiver.
-
Avoid placing the receiver in a corner
to prevent any RF reception deterioration.
-
Avoid placing the receiver antennas
close to an obstruction or close to any metal surface.
-
Try to place the receiver as far away
from any digital equipment, including computers and some CD players, as
possible.
-
If more than one AWM6528U
wireless microphone systems are stacked together or placed in a rack, do
not let the antennas touch each other or cross each other.
-
Before the AWM6528U
is to be used in a new location, place the AWR6528U
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.
-
Do not drop the transmitter on the floor
or strike the transmitter with any object.
-
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 |
|
|
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. |
|
|
Receiver volume
control set too low. |
|
|
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.
|
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|
