Studiomaster BR 28 SERIES User manual

BR 28 SERIES
Index:
1. ...................................................................................Introduction
2....................................................................................Features at a Glance
3....................................................................................Product Components
4....................................................................................Operating Instructions
5....................................................................................Basic Troubleshooting
6. ...................................................................................Technical Specifications
7.....................................................................................Product Care Instructions
1. Introduction
Thank you for buying Studiomaster Professional BR-28 UHF Wireless Microphone System.
To ensure maximum performance and safety, please follow this instruction manual carefully.
Please retain this manual for future reference.
For any complaint, feedback or testimonials please contact our dealer / distributor.
BL-28
CHANNEL
BL-28
BELT-PACK
TRANSMITTER
BR-28

2. Features at a Glance.
• UHF Band frequency by PLL-Synthesis Technology. • 8 Selectable UHF Channels
• UHF Operating Frequency Range: 460-970MHz to avoid frequency interruption.
• Antenna Diversity Receiver • Double noise squelching circuit to ensure excellent sound quality.
• LED for Channel information Display • Highly efficient & Low Energy consumption design.
• Output: Balanced XLR / Unbalanced 1/4” phone jack.
• Audio Frequency Response : 50Hz - 15kHz
• Developed especially for Live & Sound Reinforcement usage.
3. Product Components.
• Receiver (BR-28) x 1 • Wireless Handheld or Lapel Microphone x 1 • Audio Cable x 1
• AC Power Adapter for Receiver x 1 • Battery (1.5 Volt) x 2 • Instruction Manual x 1
4. Operating Instructions
Receiver Features
For switching ON the DC supply to the receiver.1. Power Switch:
This red light glows when the receiver is plugged into an electrical outlet 2. Power ON Indicator:
and switched on. It indicates that the receiver is on.
3. LED Channel Display: Displays the Selected Channel.
The BR-28 system has 8 Preset UHF Channels. This switch can be used to Toggle 4. SET Function Switch:
between the Channels & set the required Channel.
Indicate the audio signal level.5. "AF" Audio Level Indicator:
This LED lights up when the antenna receives signals from the transmitter.6. "RF" Signal Indicator:
The antenna receives signals from the transmitter.7. Antenna:
This knob is used to adjust the volume output of receiver. Rotate this Knob to 8. Volume Knob:
increase or decrease the volume as required.
Plug a balanced XLR cable from the receiver in to the input of a mixer 9. Balanced Output XLR Male Socket:
or an amplifier.
Plug an unbalanced ¼’’ Jack cable from the receiver in to the input 10. Unbalanced Output ¼ JACK Socket:
of a mixer or an amplifier.
For connecting the DC Plug of a 12V adaptor. 11. DC Input Socket:
2
9 10 11
186
7
32
5
4
BR-28

Handheld Transmitter Features
1. Grille: It protects the Diaphragm from damages. Also
acts as an effective wind & pop filter.
Displays the Selected Channel.2. Channel Display:
These switches can be used to 3. UP & Down Function Button:
toggle between the 8 present channels. Using this switch match
the channel number with the one displaying on the receiver.
This three way slide 4. Power ON/OFF & Mute SWITCH:
knob is used to Power the transmitter ON/OFF & also to mute
the transmitter when required.
Slide the battery cover for access to the 1.5V battery slot. 5. Battery Cover:
Body Pack Transmitter Features.
1. Power ON/OFF & Mute SWITCH: This three way slide knob
is used to Power the transmitter ON/OFF & also to mute the
transmitter when required.
Transmits the RF signal of transmitter.2. Antenna:
Allows you to connect to the Lavalier 3. Input connector:
microphone.
Displays the Selected Channel.4. Channel Display:
Provides audio level adjustment to 5. Audio Gain Control:
accommodate various input signal strengths.
Used to select between Lavalier system 6. Usage Mode Switch:
(L) and Headset system (H).
Used to select channel data.7. Up & Down Function Button:
Solution
Make sure power adapter is plugged into electrical outlet and into power
connector on rear panel of transmitter.Make sure electrical outlet works and
is supplying proper voltage.
Please check gain levels.
Please check cable connections.
Remove nearby sources of RF interference (CD Players, Computers, Cell
Phones, Digital Effects Processors, Etc.) Reduce transmitter gain. Replace
receiver battery.If using multiple systems, change the channel of one of the
active systems. Avoid using two systems with the same frequency at the same
place; please separate them at least by 200 meters.
Issue
Transmitter Indicator
not lighting.
Audio light glows but
no Sound.
Distortion or unwanted
noise bursts
5. Basic Troubleshooting.
13 2
567 7
AA SIZE
AA SIZE
3
1
ON
23
3
5
6
BM-28
CHANNEL
BL-28
BELT-PACK
TRANSMITTER
MIC
OFF MUTE ON ANT
4

* Design and specification are subject to change without notice
is a registered trademark of Audioplus in India. © Copyright Audioplus, 2008. All rights reserved. Any
A1/A2, Giriraj Industrial Estate, Mahakali Caves Road, Andheri (East), Mumbai - 400 093. India Tel.: 022 - 30880743
776 / 66916232 / 33 Fax: [phone] E [email protected] W www.audioplus-india.com
Rev00/SMSBM/Mar2011
unauthorised reproduction or use of logos, images or design elements is strictly prohibited by law. No part of the
compilation may be reproduced in any manner or translated without written permission.
6. Technical Specifications
Overall Specifications:
460-970MHz, UHF band
FM
± 70KHz
50Hz – 15 KHz
>85dB
>100dB
<1%
Carrier Frequency Range
Modulation Mode
Maximum Deviation Range
Frequency Response
S/N Ratio
Audio Dynamic Range
T .H.D (Total Harmonic Distortion)
Receiver Specifications:
Transmitter Specifications:
13-15V DC , 300mA
>85dB
> 70dB
> 70dB
0 - ±300mV
-105dBm
175 x 135 x 43
Power Requirements
S/N Ratio
Channel Rejection
Image & Spurious Rejection
Audio Output level
Receiving Sensitivity
Dimensions (W x D x H) mm
1.5V AA Size Battery x 2
< 100mA
> 10dBm
BM 28 - Unidirectional Dynamic Microphone
BL 28 - Unidirectional Condenser Microphone
± 70KHz
> 55dB
Power Requirements
Nominal Current Drain
RF Output
Microphone Element
Max Deviation
Spurious Emission
7. Product Care Instructions.
• Keep the wireless receiver in a good location to ensure good signal strength.
• Do not drop the Microphone, Transmitter or receiver; this could severely damage the product
• Please keep the product away from direct sunrays & rain.
• Please keep the product away from heavy magnetic or electromagnetic fields, it could affect product
performance.
• Please switch off when removing the batteries.
• Please remove the batteries/ power supply when the product is not being used for a long time.
• Do not open any of the components yourself, for repairs please contact our retailer.
• Do not use systems with the same frequency at the same place, please separate them at least by 200m .