Ritasc Electronics BR-58UM Professional Wireless UHF Microphone System User Manual

: June 5, 2024
: Ritasc Electronics

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`Ritasc`

Professional Wireless UHF Microphone System
User Manual
UHF MICROPHONE SYSTEM

Thank you for purchasing our wireless microphones. We take pride in providing our custmers with the most advanced and highest quality karaoke products in the market. Please read this USER’S MANUAL before the operation to ensure proper usage, and keep it for future reference. Enjoy!

Parts checklist

Before installing your wireless microphone, Here are a few things you should do/know:
Receiver 1/4″ male to male cable
Handheld microphone AA battery
DC power adapter User manual
*Be sure to keep the original packaging in case of re-shipping is needed.

Matters Need Attention

Check to see if the local voltage accord with the operating receiver voltage (Wrong selection may lead to burnout of the receiver)
Do not dismantle the machine on your own. For internal repairing, please contact the local distributor or accepted service center.
When the machine will not be used for a long time, please disconnect the power plug from the receiver.
Do not recharge your batteries unless the batteries are rechargeable.

Cleaning

Please make sure the power is disconnected before cleaning or repairing the machine. The machine can be cleaned by using a soft cloth with water. Dry the machine with a dry cloth and let it air dry for 15 minutes. Please do not use volatile gasoline, diluents, or other chemicals to clean the machine or the surface will be damaged.

Receiver Front Panel

Power switch: turn on or turn off
Display panel:show all kinds of information (such group, signal,frequency, and RF, AF, etc)
Volume control
IR window
Menu button: From Left to right, IR sync, left button, SET button, right button
Receiver Rear Panel
Antenna
Balance audio output
Mix out
DC input jack: 12-15V
Transmitters
LCD screen
Power switch
IR window
Attenna
Power Switch: Press the button for 2-3 seconds to turn on, the LED lights. Press again for 2-3 seconds to turn off.
Audio Input Interface.
LED Indicator: Light when turn on.Flashes when low power.
LCD Display: Display frequency information.
. Adjustment Button Set: Set button is in the middle. Touch it to enter and adjust the volume menu. Touch the left and right buttons to adjust.
Infrared Data Receive Window: receive data transmitted signal.
Battery Store.
Battery Cover.

Function Descriptions

Select the frequency: Press the SET button when FRE flashing, press the right or left button to adjust it
Choose the Channel: in the Select, the frequency menu, press the SET button, CH flashing, meanwhile, press the right or left button to choose the channel.
IR sync: Press the IR button to send the IR data.

Installation

Contact with 12-15V 1000mA DC adaptor.
Connect one end of a 1/4″ TO 1/4″ CABLE to the receiver’s UNBALANCE AUDIO OUTPUT(MIX) and the other end to a karaoke mixer, karaoke player, or karaoke power amplifier 1/4″ microphone input. If you are using the BALANCE AUDIO OUTPUT, use an XLR to XLR cable or XLR to 1/4″ cable.
Unscrew the microphones handle cover(counter-clockwise) to check to see if there are batteries. If not, put the batteries into the microphones with the negative and positive ends of the battery corresponding to the negative and positive ends of the microphone. Screw the microphone handle back on.

Connected

The power supply is connected to the power input jack of the receiver. The input voltage of the power adapter must be consistent with the local power specifications.
XLR balanced output and 6.3mm unbalanced output jack on the rear panel of the receiver, based on the need to be connected.

Troubleshooting

If you are having operating problems, or suspect something wrong with the unit, please check the troubleshooting list below to see if the issue is a result of incorrect operation rather than equipment malfunction.

Problem	Possible cause	Solution
Receiver No sound; No lights	•Power button is on the OFF position

•DC power adapter is not plugin
•Poor connection of DC power adapter
•How to switch from different channels?| •Turn on the power button
•Plug in the DC power adapter
•Check to see if the DC power adapter is loose.
•See page 3 for details.
Microphone No sound; Lights on| •The transmitter is out of range
•Microphone switch is off or mute
•Microphone volume is turned down
•Batteries in the microphone
are not installed properly
•The antenna is not fully functional.
•Receiver is not connected to amplifier, mixer or karaoke player| •Operate the machine in the effective range
•Turn on the microphone switch (indicated green light)
•Turn on the microphone volume of the receiver
•Reinstall the batteries. Make sure the positive and negative ends are installed correctly
•Try to change the angle of the antenna
•Connect the %to% cable from the receiver to a microphone input (mixer, player, etc.). See Page 4 for detail
Distorted sound; feedback| •The two microphones are too close together
•Batteries running low in microphone
•Microphone volume is too high
•Distortion from another electric wave| •Separate the microphone further away
•Replace the batteries
•Reduce the volume of the microphone
•Move the receiver away from electric equipment
Batteries| •Batteries are bad or off power| •Replace the batteries.

Features and specifications

Features:

Microphone and receiver channels auto-sync via infrared
Two high sensitive microphones with LCD indicators
Noise reduction technology
Uni-Directional rechargeable battery design
Applicable for medium&small stages, karaoke halls, and home entertainment, etc.

**Specifications:

Receiver**

Carrier Wave Frequency Range: UHF 520-580MHz, 615-675MHz
Carrier Wave Stability: 1OPPM
Sensitivity: -105dB @ sinad=12 dB
SIN Ratio: >105dB
H.D.: <0.5% @ 1KHz
Image Rejection: 85 dB typical
Spurious Rejection: 75 dB typical
Frequency Responses: 40Hz-18KHz
Working Distance: >200 feet
AF Output Impedance:2.21 <Q
Output Level: Balance : 0-400mv, Unbalance : 0-200mv
Display: LCD
Power Supply: External DC Power Supply, 1A, 12-15V DC
Output Connector: XLR Balanced Socket, Unbalance TRs06.35mm Socket

Transmitter

Transmitter Power: 30mW
Spurious Emission: <40dB(with carrier)
Display: LCD
Battery Voltage: 5V X 2
Battery Life: 6-8 hours

FCC Statement
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 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:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

The device has been evaluated to meet general RF exposure requirements.
The device can be used in portable exposure conditions without restriction.