ATK AR-500

Wireless Microphone


Only use the power adapter provided by this machine, and confirm whether the connected power
supply voltage is consistent with the requirements of the adapter. If you use a power adapter provided
by other suppliers, the machine may be damaged. This machine uses 220VAC power supply voltage.
Using other voltages may cause fire and malfunction.
1 Do not place the machine in a location with high temperature, humidity, dust, or contact with liquid
substances to avoid malfunction.
Please do not bump, throw or vibrate the machine. to avoid damaging the machine.
Do not open, touch or modify the receiver, transmitter and power adapter. There is nothing inside that
can be modified by the user. If the machine fails, it can only be repaired by an authorized maintenance
2 During use, if you find anything unusual, such as smoke, odor, etc., please unplug the power adapter
immediately and send the product to an authorized maintenance center for repair.
3 When inserting the battery, do not reverse the negative pole of the battery or insert it backwards.
Please remove the battery from the transmitter when the unit is not used for a long time.
It is strictly prohibited to use batteries with damaged shell insulation materials, otherwise it may cause a
short circuit. When disposing of batteries, do not throw them away, please put them into the designated
recycling bin.
This machine is marked with a danger warning sign “This sign is a warning of dangerous live electricity;
external wires connected to ports marked with such signs need to be installed by instructed personnel or
use ready-made bow wires or flexible wires.
5 If you are not leaving the working machine for a short period of time, please turn off the machine.
Unplug the power adapter and never leave the machine on.
For adequate ventilation, the minimum gap around the equipment is 10CM.
6If the power supply is used as the disconnecting device, it should be maintained so that it can be easily
operated to disconnect the adapter from the mains power supply. No exposed flame source, such as a
lighted candle, should be placed on the unit.
The unit should not be exposed to water drops or splashes, and objects filled with liquids such as vases
should not be placed on the unit.
In order to avoid damage to the machine, please do not install it in the following places:
※ Direct sunlight;
※Dusty place;
※High temperature place
※ Places with high oil smoke or fog.
Do not place other machines on top of this machine or cover it with cloth or paper to avoid poor
ventilation and temperature rise.
Too high and damage the machine.
Non-technical personnel are not allowed to open the case and explore its interior, as there is a danger of
When cleaning the machine, do not spray water or detergent directly on the machine. You must use a
soft cloth to clean the machine.
Sticky wipe.
Do not step on or pull on the power cord.
This unit is intended for use in tropical or temperate climates.
Batteries (battery packs or combined batteries) must not be exposed to sunlight, fire or similar
overheating environments

1. Using true diversity receiving technology, the maximum operating distance is 1000-1500 meters.
2. Equipped with advanced digital ID pilot function, it completely eliminates interference and palm-frequency phenomena.
3. It has the function of automatically searching for idle frequency points with one click and lockina the kevs with one click.
4. The receiver is equipped with a transmitter battery consumption display and is suitable for use with hand microphone.
1. The receiver and transmitter have distance SQ adjustment, which can reasonably adjust the use distance.
2. The LCD displays the channel and battery power, and the battery low voltage flashes to 1.8V and automatically shuts down.
3. Equipped with feedback feedback suppression and weakening function, which can effectively reduce feedback feedback.
4. Suitable for large and small stages, conference halls, etc.
*Note on adjustment
It is very important to correctly adjust the audio sensitivity of the transmitter. Too high a sensitivity will cause over-
modulation and produce signal distortion. A too low sensitivity will cause insufficient modulation and will reduce the signal-
to-exposure ratio. When the handheld transmitter (microphone) leaves the factory, the sensitivity has been adjusted to
the appropriate level according to the equipped capsule, and no user adjustment is required. The body-worn transmitter can
be adjusted to the selected lavalier, headset microphone or external audio source.
If the frequency is set appropriately, up to 12 transmitters can be used simultaneously in the same space and frequency band.
The devices will not interfere with each other: if the frequency is set improperly, it will cause intermodulation interference.
If multiple sets of machines are used in the same space, please try to avoid overlapping the receivers;
In places such as multiple KTV rooms in an entertainment city or teaching buildings with multiple classrooms in schools, lower the
sensitivity of the receiver to avoid mutual interference.

Operation method

Gently press the middle button of the battery cover and turn it outwards to open the battery window. Install the battery correctly according to the positive and negative symbols of the battery. Press the power button on the top and the display will light up, indicating that the machine is turned on. If you press this button again for about three seconds, the phone will shut down. If frequency binding is required, the operation is the same as that of a handheld microphone.

How to use the wearable wireless transmitter correctly
(1) The wearable microphone transmitter uses a 1/4-wavelength whip antenna. The antenna should not be in direct contact with the human body, nor should it be entangled with the microphone cable, otherwise it will reduce the use of the microchone.
(2)The sensitivity should be adjusted appropriately according to different sound sources and microphones
(3)When using a lavalier microphone, in order to reduce the sound fluctuation caused by head rotation, the lavalier should be as lose to the middle position as possible, and the microphone connection should also be property fixed to avoid introducing frictional room sounds.
(4)The head-mounted microphone capsule is usually located at the corner of the mouth, Adiustino the distance between it and the mouth can increase or decrease the high and low sounds.
(5) When lavalier microphones are used for live sound reinforcement, directional capsules should be used. The selection and lavout of speakers should be based on the principle of reducing acoustic feedback. in situations where acoustic feedback is particularty prone to boar acoustic foodhock sucores cion should be selected device..

How to use handheld wireless microphone correctly
(1) The hand should be held in the middle of the microphone. If it is too close to the mesh head, it will affect the microphone’s sound pickup.
tect fift is too close to the bottom antenna position, the emission efficiency will be reduced and the usage distance will be reduced and the usage distance will be reduced.
(2) Adjust the distance between the microphone and your mouth to increase or decrease the pitch and bass.

How to use the receiver correctly
(1) Receivers are divided into two categories: diversity receivers and non-diversity receivers. Non-diversity receivers are more economical.
Diversity can have farther and better transmission effects, and should be selected reasonably according to needs.
(2) When the receiver uses an omnidirectional antenna , the distance between the arterna and the
wall (especially the metal body ) should be 0.5m distance.
(3) The receiving range is related to many factors and varies greatly. If there are no large metal parts blocking the transmission direction, better transmission effects can be obtained.
(4) If the receiving conditions are not ideal, you can use an extension cord or an external high-gain antenna, or even to the antenna amplifier, a very obvious distance increasing effect can be
(5) When the receiver panel faces the direction of use, or when the receiver is built into a metal box,
connecting the antenna to the front panel will have better reception.

General fault phenomena and simple solutions
Fault phenomenon – cause of issue
No indication from transmitter or receiver – The transmitter battery is exhausted and the receiver power is not connected properly.
No RF signal from receiver – Transmitting and receiving on different frequencies or beyond the receiving range.
There is RF signal but no audio signal- The transmitter microphone is not connected or the receiver waits too long.
The audio signal has too much background noise- The transmit modulation frequency is too small, the receiving output level is low, and there may be interference signals.
audio signal distortion- The modulation frequency of the transmitter is too large. Receiver output level is too high.
The use distance is short and the signal is unstable- The transmitter is set at low power and the receiver squelch is too deep. The receiver antenna is set improperly and there is strong electromagnetic interference around it.

Use and storage: Do not use or store the unit in environments with high humidity, strong electromagnetic fields, strong direct sunlight, high temperatures, etc. If it is not used for a long time, unplug the receiver and take out the transmitter battery.

Cleaning: The power plug must be unplugged and cleaned with a damp cloth before cleaning. Do not use any detergent or solvent liquid, otherwise it will damage the surface processing layer.

Power supply: Make sure the power supply is within the required range. Too high or too low will affect the work. When installing the battery into the transmitter, do not install the battery upside down, otherwise the machine may be damaged.

Maintenance: If the machine is faulty or has performance degradation, please do not disassemble the casing for repairs to avoid electric shock or serious damage to the machine, and loss of warranty rights. Please contact your local dealer or our factory, we will do our best to do our best for you.

Accessories: Please use accessories provided by the manufacturer or approved accessory products for optimal performance performance.

Warranty: This machine does not contain modifiable parts. Please do not disassemble and modify it by yourself, otherwise the warranty will be lost.

Technical parameters
Frequency range:640-690MHz
Modulation method: wideband FM
Adjustable range: 100MHz
Number of channels: 200
Channel spacing: 200KHz
Audio response: 40Kz – 18KHz (‡3dB)
Comprehensive signal-to-noise ratio: > 66dB
Total harmonic distortion: ≤ 1.1%
Working temperature: -5°C~40°C
Receiver power supply: 12VDC/1000mADC
Receiver mode: double frequency conversion superheterodyne
Power consumption: 12W
Wireless interface: BNC/50 2
Maximum output level: -10 dBV transmitter:
Transmitter operating current: 320mAmin (continuous operation 6~8 hours)
Antenna thread type: Pendant transmitter uses 1/4 wavelength whip antenna; handheld microphone has built-in antenna
Output power: 20mW
Handheld microphone power supply: one 18650 lithium battery.