MIPRO MR-823 User Manual

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MR-823 / MH-80 /MT-801a

UHF Dual-Channel Diversity Wireless Microphone System

User Guide

MIPRO Electronics Co., Ltd.

Headquarters: 814 Pei-Kang Road, Chiayi, 60096, Taiwan.
Web: www.mipro.com.tw
E-mail: [e-mail]

Design and specifications are subject to change without prior notice

AS121201

! IMPORTANT SAFETY INSTRUCTIONS !

WARNING

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus 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 radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarised or ground plug: A
polarised plug has two blades with one wider than the other. The wide blade
is provided for your safety. When the provided plug does not fit into your
outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plug,
convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with a cart, stand, tripod, bracket, or table specified
by the manufacturer, or sold with the apparatus. When a cart
is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused
for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as power-supply
cord or plug is damaged, liquid has been spilled or objects have fallen into
the apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.

15. To reduce the risk of fire or electric shock, do not expose this apparatus to
rain or moisture.

16. Apparatus should not be exposed to dripping or splashing and no objects
filled with liquids, should be placed on the apparatus.

17. Use only with the battery which specified by manufacturer.

18. The power supply cord set is to be the main disconnected device.

1. FOR OUTDOOR USE:
To reduce the risk of fire or electric shock, do not expose this apparatus to
rain or moisture.

2. UNDER WET LOCATION:
Apparatus should not be exposed to dripping or splashing and no objects
filled with liquids, such as vases should be placed on the apparatus.

3. SERVICE INSTRUCTIONS:
CAUTION - These servicing instructions are for use by qualified service
personnel only. To reduce the risk of electric shock, do not perform any
servicing other than that contained in the operating instructions unless you
are qualified to do so.

This symbol indicates that dangerous voltage constituting a risk of
electric shock is present within this unit.

This symbol indicates that there are important operating and
maintenance instructions in the literature accompanying this unit.

& IC - ID

THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES AND RSS-123 ISSUE2 OF
CANADA. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS:

(1) This device may not cause interference.

(2) This device must accept any interference, including interference that may cause
undesired operation of the device. This equipment complies with FCC RF radiation
exposure limits set forth for an uncontrolled environment.

Disposal

200 5-08- 13200 5-08- 13

Dispose of any unusable devices or batteries responsibly and in accordance
with any applicable regulations.

Disposing of used batteries with domestic waste is to be avoided!

Batteries / NiCad cells often contain heavy metals such as cadmium(Cd),
mercury(Hg) and lead(Pb) that makes them unsuitable for disposal with
domestic waste. You may return spent batteries/ accumulators free of
charge to recycling centres or anywhere else batteries/accumulators are
sold.

By doing so, you contribute to the conservation of our environment!

Contents

UHF Dual-Channel Diversity Receiver

UHF DUAL-CHANNEL DIVERSITY RECEIVER PRODUCT OVERVIEW

PRODUCT OVERVIEW

KEY FEATURES AND BENEFITS

PART NAMES AND FUNCTIONS

RECEIVER INSTALLATION

TIPS FOR ACHIEVING OPTIMUM PERFORMANCE

CAUTION

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Thank you for choosing MIPRO wireless microphone system. Please read this user guide

thoroughly to ensure the system is operated correctly to maintain optimal performance.

It features diversity technology for reliable reception, warning indicator for presence of
interference and dual "Pilotone & NoiseLock" controlled squelch to deter unwanted signals
and random noise interference sources such as computers, karaoke machines and DVD
players.

Our professional wireless microphone systems deliver transparent sound quality, reliable
RF performance and unrivaled innovative features. This system offers the finest
components, engineering technology and styling, just what you would expect from MIPRO.

HANDHELD WIRELESS MICROPHONE

PART NAMES AND FUNCTIONS

TRANSMITTER BATTERY INSERTION

OPERATING INSTRUCTIONS

BODYPACK TRANSMITTER

PART NAMES AND FUNCTIONS

OPERATING INSTRUCTIONS

AF 4-PIN INPUT CONNECTION METHODS

TRANSMITTER BATTERY INSTALLATION

OPTIONAL ACCESSORIES

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KEY FEATURES AND BENEFITS

EIA standard 19”1-rack unit design.

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Dual fixed-frequency design receiver.

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Operates on the less-crowded UHF bandwidth.

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Diversity technology ensures reliable transmission quality.PLL-synthesized design

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provides excellent frequency stability and simultaneous multi-channel operation.

5-segment RF and Audio level meters.

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Dual "Pilotone & NoiseLock" squelch prevent random noise interference sources like

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computers, karaoke machines and DVD players.

Antennas can be mounted on either the front or rear panel to provide flexibility.

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Balanced XLR and unbalanced 1/4" audio outputs.

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First wireless receiver equipped with a "receiving sensitivity adjustor" and "NOISE" LED

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indicator. Allows users to identify the presence of interference and able to adjust for the

ideal sensitivity level to overcome the interference.

First receiver equipped with a balanced volume control to enable users to adjust the

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mixed output volume of two wireless microphones.

The system's default output level is accurately pre-adjusted to match the microphone

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capsule sensitivity. Therefore, users don't need to adjust the volume of the receiver.

The user can operate the system easily, as if it were a wired microphone.

Ideal for small to medium sized stages, PA and karaoke venues.

!

The System Includes the Following Accessories:

Receiver ×1
Audio Output Cable ×2
Antenna ×2
AC/DC Adapter ×1
User Guide ×1

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UHF Dual-Channel Diversity ReceiverUHF Dual-Channel Diversity Receiver

PART NAMES AND FUNCTIONS

Front Panel: Rear Panel:

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SENSITIVITY

NOISE

NOISE

MR-823

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1

Power On/Off Switch & Indicator: Turns the receiver on and off. Red light glows

A B

RF AF RF AF

A

BALANCE VOLUME

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B

when the switch is pressed. It denotes the receiver is on.

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RF Level Indicators: Indicates received RF (Radio Frequency) signal strength.

3

8

Audio Level Indicators: Indicates transmitted audio signal strength from the

transmitters.

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Noise Warning Indicator: Red light glows denoting the presence of interference.

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9

Sensitivity Control: This control affects the operating range and signal quality. It

is factory pre-set at “+” position and no further adjustment is normally required.

+: (Default) High sensitivity and longest operating range.

-: Adjust counterclockwise accordingly when Noise Warning Indicator glows to

minimize interferences. However, such action decreases operating range.

6

Microphone Balance Volume Control: Allow users to adjust the mixed volume

level of two transmitters to a balanced or different level.

11

Rackmount Brackets (Optional): Allows the installation of the receiver into an

EIA-standard 19" rack.

UHF

4 10

811

(Figure 1)

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12 19 13 14 15 16 20 17

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Antenna B Input Connector: To install TNC-type Antenna.

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Unbalanced Audio Output Connector B (High Z / AF out): This 1/4”(6.35mm)

phone jack provides an unbalanced high impedance line level output. An unbalanced
audio cable phone plug can be used between this connector and amplifier input.

14

Unbalanced Level Switch:
0dB selection is for microphone-level output.
+10dB selection is for auxiliary level output.

-6dB selection is for half of cable microphone volume.

15

Unbalanced Mixed Switch:
MIXED - Audio signal from both Channel A & B will be mixed into Output B and no

audio output from Output A.
SEPARATE - Audio signal will be transmitted separately from Output A and Output
B.

16

Power Input Connector: Connect a 12 volt AC/DC power adapter to this jack and

then plug into an AC outlet.

17

Unbalanced Audio Output Connector A (High Z / AF out): This 1/4”(6.35mm)

phone jack provides an unbalanced high impedance line level output. An unbalanced
audio cable phone plug can be used between this connector and amplifier input.

18

Antenna A Input Connector: To install TNC-type Antenna.

19

Balanced Audio Output Connector B (Low Z / AF out): XLR connector provides

a balanced low impedance microphone-level output. Plug an XLR audio cable from
this connector to the input of a mixer. (Optional)

20

Balanced Audio Output Connector A (Low Z / AF out): XLR connector provides

a balanced low impedance microphone-level output. Plug an XLR audio cable from
this connector to the input of a mixer. (Optional)

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(Figure 2)