NDR-3110 Wireless Receiver

Product Information: NDR-3110 UHF 1/2 19 Single-Channel Auto
Sync Diversity Receiver

The NDR-3110 is a wireless microphone system that includes a
single-channel auto sync diversity receiver. It has 99 channels and
is manufactured by CHIAYO ELECTRONICS CO., LTD. The package
includes the NDR-3110 receiver, one handheld/beltpack transmitter
(optional), audio cable, switching adaptor (plug varies from
country to country), and operation manual.

Parts and Functions:

• Antennas (fixed)
• Power/volume control
• Channel indicator
• Channel scan buttons
• IR sensor LED
• RF signal indicator
• Audio signal indicator
• Channel synchronization button
• Balanced audio output
• Unbalanced audio output
• MIC/LINE output impedance switch (only for unbalanced audio
  output)
• Squelch control
• DC input

Important Instructions:

1. Please make sure that the output DC voltage range of the
   switching power covers that specified by the receiver before
   turning it on.
2. The RF indicator will glow to denote RF signal received after
   turning on the transmitter.
3. The receiver and transmitter must be the same frequency.
4. While using the transmitter, the audio signal indicator will
   glow to denote audio signal received.

Usage Instructions:

Adjusting Volume Level:

Volume level can be adjusted by rotating the Power/volume
knob.

Scanning & Changing Channel:

First turn on the main power switch, and the two 7-segment
display LED will show last stored frequency. Select a channel that
corresponds to the transmitter. When the transmitter is turned on,
either A or B diversity indicator will light up to indicate that it
is connected. For an interference-free operation, a cleaner channel
might be necessary if the current one receives too much
interference. Before scanning, the transmitter must be switched
off. Press “or” and the receiver will scan and stop at the next
clean channel.

Channel Synchronizing:

Align infrared areas of the receiver and transmitter within
10~30cm. Press the sync button on the receiver. The receiver will
transmit the frequency to the transmitter and synchronize the
channel. If it doesn’t work, check that you have the IR sensor
panels aligned, that they are facing each other, devices are within
30cm of each other, and try again.

Adjusting Squelch Level:

When interference is encountered, try reducing the sensitivity
of the receiver by turning the SQ control clockwise, making it less
susceptible to interference. If this still does not solve the
problem, it means this frequency is not suitable. Adjust the
squelch back to where it was and use the scan function to locate a
clear channel.

Operation manual

NDR-3110
UHF 1/2 19″ Single-Channel Auto Sync Diversity Receiver

NDR-3110 WIRELESS RECEIVER

99

CHANNEL

IR RF AF SYNC MIN PWR MAX

CHIAYO ELECTRONICS CO., LTD.

NDR-3110 UHF 1/2 19″ Single-Channel Auto Sync Diversity Receiver
Thank you for choosing this wireless microphone system! For more details, please take a few moments to read this operating manual to have a thorough understanding of the function and operation of both transmitter and receiver.
In the box

NDR-3110 WIRELESS RECEIVER

99

CHANNEL

IR RF AF SYNC MIN PWR MAX

NDR-3110 receiver

one handheld / beltpack transmitter (optional)

audio cable

switching adaptor
(plug varies from country to country)

operation manual

Important

** Remark: The above specifications are subject to change without prior notice.

1. Please make sure that the output DC voltage range of the switching power covers that specified by the receiver before turning it on.
2. The RF indicator will glow to denote RF signal received after turning on the transmitter. 3. The receiver and transmitter must be the same frequency. 4. While using the transmitter, the audio signal indicator will glow to denote audio signal
received.

1

Parts and functions

Antennas (fixed) Power / volume control Channel indicator

Instructions

NDR-3110 WIRELESS RECEIVER

99

CHANNEL

IR RF AF SYNC MIN PWR MAX

Channel scan buttons IR sensor LED
RF signal indicator Audio signal indicator Channel synchronization button

BALANCED

DC 12V

AF OUT LEVEL

PO W ER A N T.B

SQ MIC LINE AF OUT

MIC OUT

AN T.A

Balanced audio output Unbalanced audio output MIC/LINE output impedance switch, only for unbalanced audio output. Squelch control DC input

2

NDR-3110 UHF 1/2 19″ Single-Channel Auto Sync Diversity Receiver Adjusting volume level Volume level can be adjusted by rotating the Power/volume knob.
9
IR RF AF SYNC MIN PWR MAX

Scanning & changing channel
First turn on main power switch, the two 7-segment display LED will show last stored frequency.
For example, if channel 88 is 630.325MHz, the LED will first display 63, 03 and 25 in order and return to 88. Select a channel that corresponds to the transmitter. When transmitter is turned on,
either A or B diversity indicator will light up to indicate that it is connected.
For an interference- free operation, a cleaner channel might be necessary if the current one receives too much interference. Before scanning, the transmitter must be switched off. Press orand the receiver will scan and stop at the next clean channel.

01

CHANNEL

IR R

01

CHANNEL

IR R

06

CHANNEL

IR R

Channel synchronizing of the receiver and transmitter Align infrared areas of the receiver and transmitter within 10~30cm. (Fig.1)

Fig.1
3

Instructions
Changing the receiver’s channel Press the sync button on the receiver. The receiver will transmit the frequency to the transmitter and synchronize the channel.

IR RF AF SYNC MIN PWR MAX

If it doesn’t work check that you have the IR sensor panels aligned, that they are facing each other, devices are within 30cm of each other, and try again.
Adjusting squelch level When interference is encountered, try reducing the sensitivity of the receiver by turning the SQ control clockwise, making it less susceptible to interference. If this still does not solve the problem, it means this frequency is not suitable. Adjust the squelch back to where it was and use the scan function to locate a clear channel.

AF OUT LEVEL

A N T.B

SQ MIC LIN

Audio output connection
Balanced output: XLR connector provides balanced audio output signal from this jack to the mixer/amplifier. Use an audio output cable with “XLR” or “Cannon” connector, connect one end to the balanced output jack of the receiver, and the other end to the “MIC IN” jack of the mixer/ amplifier (Fig.2).

BALANCED

DC 12V

AF OUT LEVEL

P O W E R A N T.B

SQ MIC LINE AF OUT

MIC OUT

A N T.A

Level AF OUT LEVEL
MIC LINE Fig.2
4

NDR-3110 UHF 1/2 19″ Single-Channel Auto Sync Diversity Receiver
Unbalanced output: ¼” PHONE PLUG connector provides unbalanced audio output signal from this jack to the mixer/amplifier. Use an audio output cable with ¼” PHONE PLUG connectors. Connect one end from the unbalanced output jack of the receiver, and the other end to the “LINE IN” or “MIC IN” jack of the mixer/ amplifier. Level switch setting When connecting to the LINE /AUX IN of a mixer/amplifier, switch to “LINE” position (Fig.3). DO NOT use the “MIC” position as they may not deliver a sufficient high output level When connecting to the “MIC IN” jack of a mixer/amplifier, switch to “MIC” position (Fig.4). Overload distortion may occur at the wrong level position.

BALANCED

DC 12V

AF OUT LEVEL

PO W ER A N T.B

SQ MIC LINE AF OUT

MIC OUT

A N T.A

BALANCED

DC 12V

AF OUT LEVEL

PO W ER A N T.B

SQ MIC LINE AF OUT

MIC OUT

A N T.A

LINE/AUX IN Level AF OUT LEVEL
MIC LINE
Fig.3

MIC IN

Level
AF OUT LEVEL

MIC LINE
Fig.4

Receiver installation 1. The receiver should be at least 1m above the ground and

1m

1m

1m away from a wall or metal surface to minimize

reflections.

2. The transmitter should also be at least 1m away from a

wall or metal surface to minimize reflections.

1m

3. The transmitter should also be at least 1m away from the

receiver. Keep antennas away from noise source such as

motors, automobiles, neon light as well as large metal

objects.

4. Power voltage should not below 12V DC or above 15V DC. Deficient current causes unstable

operating voltage or malfunction and over current shortens the product life and possibly

damages circuits.

5

Instructions Rack mounting The slide rail structure on both sides of the receiver is designed to facilitate the user to connect the two receivers in parallel and quickly install onto the cabinet.
Rack mount of two receivers
Rack mount of single receiver
6

CHIAYO ELECTRONICS CO., LTD.
Http://www.chiayo.com.twEmail: [email protected] Office: 30, Lane 27, Section 4, Jen-Ai Road, Taipei 10685, Taiwan Tel: 886-2-27415741Fax: 886-2-27525242 Factory: 88, Chung-Hsiao Street 2, Chiayi 60080, Taiwan Tel: 886-5-2711000Fax: 886-5-5767611

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