MIPRO ACT-82a User Manual
User Guide
2 CE 3 9 9 A
ACT-82a
Encrypted Digital Wideband Diversity Receiver
MN 014/01
! 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.
1. FOR OUTDOOR USE:
To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
2. UNDER NORMAL OPERATING CONDITIONS:
Apparatus should not be exposed to dripping or splashing and no objects filled with liquids, such as
vases, should not 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.
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 shall 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 specified by the manufacturer.
18. The power supply cord set is to be the main disconnect device.
& 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
2005-0 8-1 3
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!
Encrypted Digital Wideband Diversity Receiver Encrypted Digital Wideband Diversity Receiver
Contents
1 Product Overview
2 Key Features
3 MIPRO'S Proprietary "ACT" Function and Operation
4 R
eceiver Controls and Indicators
6 Receiver Installation
7
Receiver Operating Tips
8 Receiver VFD Interface
9
Parameter Setting Procedures
20 Computer Network Interface Operation
21 General Tips for Improving System Performance
Product Overview
ACT-82a is MIPRO introduced industry-leading professional digital wireless microphone system. Each
design feature and function is contemporary top technology, and much appreciated by professional
audio experts in recognition of its excellent performance, especially through the latest MU-89 true
condenser microphone capsule makes the sound quality even perfect. Therefore, it is the first choice for
professional wireless microphone systems.
Digital wireless microphone system introduces wireless microphones into a new era of digital sound
quality, and will cause a revolution in audio that the wireless sound quality can almost compare with the
cable transmission, thus digitalizing must be the future trend.
In response to the change of EU and US telecom regulations, we immediately launch the new wideband
ACT-82a digital wireless system, extending the bandwidth from 24MHz to 120MHz, which can completely
accommodate to the new telecom bandwidth of the United States with only one receiver, and two bands
can be used in Europe. The transmitter's bandwidth is also extended from 24MHz to 120MHz to match
the receiver's, and that is very convenient for the multi-channel usage.
Included Accessories:
User Guide x 1
Power cable x 1
Phone cable x 1
Rack-mount kit x 1 set
Antenna x 2
0
1
Encrypted Digital Wideband Diversity Receiver Encrypted Digital Wideband Diversity Receiver
Key Features
!
EIA-standard 19” 1U metal chassis.
!
Expanded 120MHz wide bandwidth.
!
24-bit audio quality and digital RF transmission.
!
Proprietary 128-bit RC4-derived encryption guarantees secure audio transmission, preventing
unauthorised listening.
!
<2.9m latency; T.H.D. is lower than 0.04% at 1KHz.
!
Enhanced RF filter and circuitry improve anti-interference characteristics and increase system
compatibility.
!
DigitnamicPlus™ technology eliminates compander noise assuring original sound quality.
!
Built-in user-defined microphone capsule equalisation (with ten presets) enables audio characteristics
to be modified to suit the performer's individual preference.
!
Digital transmission offers better resistance to interference.
!
Digital transmission quality is constant, therefore signal-noise ratio does not deteriorate as received
signal becomes weaker with distance.
!
Proprietary audio A/D converter provides a true dynamic range of 115dB(A) which eliminates
saturation and distortion at higher frequencies under high SPL input conditions.
!
Digital AES/EBU outputs for direct digital connection to digital consoles.
!
Wordclock in/thru facility (with indicator) ensures correct synchronisation with other digital
equipment.
!
Intuitive and easily accessible user controls, allowing for quick and easy system setup via a single
rotary control.
!
Industry-standard AutoScan and ACT™(Automatic Channel Targeting) sync technology for fast, easy,
transmitter setup.
!
Optional comprehensive PC-controllable MIPRO RCS2.Net software allows real-time network
adjustments and monitoring of multiple, large-scale systems.
MIPRO'S Proprietary "ACT" Function and Operation
What is ACT?
“ACT” stands for “Automatic Channel Targeting”. MIPRO developed and patented this innovative InfraRed
(IR) technology in 2001. MIPRO was the first manufacturer in the industry to automatically synchronise
the frequency selected on the receiver to any ACT handheld or bodypack transmitter in the same
frequency band.
ACT Benefits：
!
No manual frequency adjusting needed, unlike traditional transmitters.
!
Simple, fast and precise frequency setup without mechanical errors.
!
Once the frequency has been set, the data is written to memory in the transmitter.
This ensures that the transmitter frequency now stays with that transmitter. That is, of course, until
a change is required. By performing the “ACT” function again, the frequency can be re-programmed
to another Group/Channel as necessary.
ACT Set-Up
!
Ensure a receiver channel is set up, the transmitter battery is charged, and the transmitter is
powered ON.
!
Press and release the ACT button on the receiver to activate the ACT sync function. Once activated,
the words “ACT” and “Sync” will illuminate.
!
Move the ACT handheld or bodypack transmitter IR window to within 30cm (12”) of the IR port on
the receiver. The IR port on the receiver is located behind the “ACT” button itself and is indicated by
a round, dark red dot. The frequency will sync automatically.
!
When the frequencies have successfully synchronised between the receiver and transmitter the
illuminated “ACT” and “Sync” will disappear. The RF meter will now illuminate and show full RF
strength.
L
BA
GRP
CH
BAND
ADD
Once ACT button is pressed, it
automatically syncs the selected receiver
frequency to any MIPRO ACT handheld or
bodypack transmitter in the same
frequency band quickly and precisely.
SQ
ANT
EQ
RF
AF
ACT
MHz
< 30
GRP
BAND
ADD
cm (1
L
BA
CH
SQ
ANT
EQ
RF
AF
ACT
MHz
2
in.
a
)
or
2
3
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