Avlex ACT-80T User Manual

2 CE 4 6 4 A

MIPRO Electronics Co., Ltd.

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

ACT-80T Wideband Digital

Bodypack Transmitter

User Guide

Design and specifications are subject to change without prior notice

AS121115

IC:

This device complies with Industry Canada licence-exempt
RSS-123 ISSUE 2 standard. Operation is subject to the
following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including
interference that may cause undesired operation of the
device.

Digital Bodypack Transmitter

Contents

1 Key Features

3 Bodypack Controls and Indicators

6 O

perating Instructions

FCC Caution: To assure continued compliance, any
changes or modifications not expressly approved by the
party responsible for compliance could void the user's
authority to operate this equipment. (Example - use only
shielded interface cables when connecting to computer or
peripheral devices).

FCC ID label:

THIS DEVICE COMPLIES WITH PART 74 OF THE FCC
RULES. This equipment complies with FCC RF radiation
exposure limits set forth for an uncontrolled environment.

Disposal

2005 -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!

7 LCD

8

Display Screen

How to Setup Transmitter Parameters

19 Battery Status

22

26 AF

27 B

MUTE Control Set-Up

Input Connections

attery Removal and Installation

0

Digital Bodypack Transmitter Digital Bodypack Transmitter

Key Features

! Industry's smallest and lightest digital bodypack

transmitter with extremely rugged low-profile
metal housing.

! Detachable antenna, XLR input socket, mute

button and remote mute control input.

! Backlit LCD displays working band-code, group

channel, AF gain, limiter, low cut, phase, output
power, mute, battery status, encryption status &
error codes.

! Innovatively designed battery cover allows easy

access to operate buttons and prevents
accidental operation.

! Mute button and remote-control jack is equipped

for easy activation of mute function.

! High efficiency, low power consumption and low

spurious PLL synthesized circuit is applied.

! An interference-free working channel can be

synchronized quickly and precisely by MIPRO's
patented ACT™ function.

! Selectable AF input polarity for various

microphone capsule modules.

! Mini-XLR input connector for quick screw lock

with lavalier / headworn mics and guitar.

! 2 AA batteries for long operation time.

! Adjustable belt clip allows wearing transmitter in

any position.

Furnished Accessories:

! USER GUIDE ×1

1

2

Digital Bodypack Transmitter Digital Bodypack Transmitter

Bodypack Controls and Indicators

1

2

3

4

5

6
7

8

9

10

11

FREQ UENCY

485.000MHz

MODEON

SET

2

MUTE Button: To mute and un-mute the audio
signal temporary.

3

Antenna: Flexible 1/ 4 wave transmitting
antenna.

4

Transmitter Housing: Holds PCB board and
wires.

5

LCD Panel: Display transmitter parameters.

6

SET Button: Parameter selection button.

7

MODE Button:

Allows access to 9 available

functions displaying in LCD panel.

8

Power Button: Press and hold 2 seconds to
power ON or OFF.

9

ACT IR Port: Align and syncs the transmitter
and receiver frequency automatically.

10

Battery Compartment: Holds 2 'AA' batteries.

11

12

13

Battery Cover: Hinged cover opens to provide
access to 2 'AA' batteries.

12

External Mute Connector: When an external
mute switch cable, MJ-70 (optional) is
connected, user can manually mute and un­mute the audio temporary.

13

Belt Clip: Detachable and reversible design
allows the transmitter to be worn on a belt,
waistband, or guitar strap ( .

Figure 1)

1

Audio Input Connector: TA4F mini 4-pin
connector accepts any MIPRO lavalier,
instrument and headset microphones and
cables. (See 5 ways of connection on AF Input
Connections)

43

Digital Bodypack Transmitter Digital Bodypack Transmitter

(Positive Wear) (Opposite Wear)

(Figure 1)

Operating Instructions

! Please make sure sensitivity level is set at

proper level.

! Guitar setting is recommended at LINE level.

!!Insert the lavalier, headset microphone or

instrument cable into the audio input connector
before power ON the transmitter.

Tighten the connector screw clockwise direction
as shown in (Figure 2) for a secured fit.

Capsule Connector

FREQU ENCY

485.000MHz

MODEON

Headset
Lavalier

SET

The ridge on the
connector must align and
match the indentation on
the socket when inserting
for a proper fit.

(Figure 2)

5

6

Digital Bodypack Transmitter Digital Bodypack Transmitter

LCD Display Screen

Fully Lit LCD Display

14

15

16

14

 LCD Screen

15

 Parameters Screen

16

 AF (audio) MUTE

17

 Transmitter Battery Meter

GRP CH

0 1 0 2

How to Setup Transmitter Parameters

! MODE Button:

Press “MODE” button to access one of the NINE
functions below.

! SET Button:

17

Press “SET” button and LCD wills start flashing.
During flashing, press SET button to change
parameters.

FREQU ENCY

485.000MHz

SET

MODEON

MODE
SET

7

8

A

GRP CH

0 1 0 2

F

ENC RYPTIO N

N O

G

RF P OWER

RF-LO W

Digital Bodypack Transmitter Digital Bodypack Transmitter

B

FRE QUENC Y

485.000MHz

C

AF G AIN

0 dB

GRP CH: Displays Group and Channel Information

a. Press MODE and stop on the GRP CH function;

the display showing the current group and

E

AF L IMIT

Y E S

D

AF L OW-CU T

LOW CUT

channel will be flashing. After 5 seconds, the
display will stop flashing and the current group
and channel selection will be set.

b. The group and channel information is now

H

AF P HASE

INVER T

I

SET LOCK

UNLOC K

shown on the display. Changing the current
group and channel must be done on the
receiver.

A

Group and Channel

B

Frequency

C

Sensitivity Level

D

AF Low Cut

E

AF Limit

F

Encryption

G

RF Output Power

H

AF Phase

I

Parameters Lock & Unlock Status

GRP CHGRP CH

0 1 0 2

**Note:

When programming a special frequency via
monitoring software, the LCD screen cannot
display the number. This is because this special
channel is not in the preset group and channel.
RF, the LCD panel will look like the illustration
below.

GRP CH

9

10

Digital Bodypack Transmitter Digital Bodypack Transmitter

FREQUENCY: Displays Transmitter Frequency

Information

a. Press MODE and stop on the FREQUENCY

function; the display showing the current
frequency will be flashing. After 5 seconds, the
display will stop flashing.

b. The frequency information is now shown on the

display. Changing the current frequency must be
done on the receiver.

**Note:

To modify the transmitter's group, channel and
frequency, all three must be set at the receiver
and the new setting transmitted to the
transmitter via the ACT function.

FR EQ UE NC Y

485.000MHz

AF GAIN: Setup and Change of Input Sensitivity

a. Press MODE and stop on the AF GAIN function;

the display showing the current status will be
flashing and is ready to be modified.

b. Every push of the SET button increases the dB

value by 6dB to a maximum of 18dB.

**Note:

1. The higher the gains are set, the lower the
dynamic range for signal input and the
greater the danger of unwanted noises and
feedback getting into the system.

2. When using electronic guitar, gain should set
at 0dB.

3. Please make sure input signal strength does
not exceed 2 Vrms (gain=6dB) as it is the
maximum input strength allowed for
transmitter without causing distortion.

AF G AIN

-12 dB

AF G AIN

-6 dB

AF G AIN

0 dB

AF G AIN

18 dB

11

12

AF G AIN

12 dB

AF G AIN

6 dB

Digital Bodypack Transmitter Digital Bodypack Transmitter

AF LOW-CUT: Setup and Change of Low Frequency

Cut Off

a. Press MODE and stop on the AF LOW-CUT

function; the display showing the current status
will be flashing and is ready to be modified.

b. Press the SET button while the display is

flashing to change to LOW CUT or FLAT as
desired.

**Note:

When the AF LOW-CUT function is LOW CUT,
the frequency response below 100Hz will
decrease about 3dB with a slope of ­6dB/Octave.

AF LO W-C U T

LOW CUT

AF LO W-C U T

FLAT

AF LIMIT: Setup and Change of Input Limit

a. Press MODE and stop on the AF LIMIT

function; the display showing the current status
will be flashing and is ready to be modified.

b. Press SET while the display is flashing to change

the setting to ON or OFF.

**Note:

When the LIMIT is ON, the maximum output of
the receiver is limited to 1V.

AF LI MI T AF LI MI T

Y E S N O

13

14

Digital Bodypack Transmitter Digital Bodypack Transmitter

ENCRYPTION: Displays Information of Encryption

a. Press MODE and stop on the ENCRYPTION

function; the display showing the current status
will be flashing.

**Note:

1. The ENCRYPTION function displays status
information only. Changing of the current
status must be done from the receiver via
the ACT function.

2. The ENCRYPTION function must be set at
receiver first then using ACT to program the
transmitter.

EN CRY PT IO N

N O

RF POWER: RF Power Selection

a. Press MODE button for selection of RF POWER.

Selection of RF-HI or RF-LOW can be selected
once the RF POWER LCD starts blinking.

b. Press SET button to select and set RF-HI or

RF-LOW.

**Note:

RF-HI has 50mW transmitting power. RF-LOW
has 10mW transmitting power. Set appropriate
power to meet region/country regulations.

RF PO WE R

RF - HI

RF PO WE R

RF - LO W

15

16

Digital Bodypack Transmitter Digital Bodypack Transmitter

AF PHASE: Phase Selection of AF inputs

a. Press MODE button for selection of AF PHASE.

Selection of NORMAL or INVERT can be
selected once the AF PHASE LCD starts
blinking.

b. Press SET button to select and set NORMAL or

INVERT.

**Note:

AF PHASE function provides users a phase
selection for different condenser microphones.
The normal setting is NORMAL, and INVERT
might be selected if two-wire condenser
microphone is used.

AF PH AS E

NO R MA L

AF PH AS E

IN V ER T

SET LOCK: Setup and Change of Parameter Lock

a. Press MODE button once for SET LOCK display.

Once SET LOCK display starts blinking it is
ready for selection.

b. Press SET button for UNLOCK or LOCK

selection.

**NOTE:

1. When locked (LOCK), receiver settings
cannot be changed including the powering on
& powering off. To power off it needs to be
in unlock mode (UNLOCK).

2. A sudden lose of power will deactivate the
LOCK Function.

3. MUTE function can be operated normally
during LOCK mode.

SE T L OC K

UN L OC K

SE T L OC K

LO C K

17

18

Digital Bodypack Transmitter Digital Bodypack Transmitter

Battery Status

Indicates the power remaining in the transmitter
battery. When the battery has less than 10% power
remaining it must be replaced or recharged. If an
under voltage condition continues, the LCD will
show “OFF...” and the system will shut down to
prevent being overly discharged.

10 0% 80 % 60 % 40 % 20 % 10 %

“OFF...” : Power Off

1. Press and hold power button for 2 seconds to
power on & off.

2. When the power switch is turned off, the LCD
will show “OFF…” (for Power Off) first and then
the system will shut down and no further
messages will be displayed.

OF F. . .

19

20

Digital Bodypack Transmitter Digital Bodypack Transmitter

ERR: Error Code

If the LCD displays “ERR” after turning on the
power, it indicates the operation is not correct. The
error codes are as follows:

ROM-ER → Transmitter does not have the initial

data so the microphone is completely
dead and cannot be programmed.

ERROR1 → Failure on RF circuitry, frequency

cannot be programmed.

NO----OR3 → Frequency to be programmed into

the transmitter exceeds the highest
frequency of the designated
frequency band of the transmitter.

NO----OR4 → Frequency to be programmed into

the transmitter exceeds the lowest
frequency of the designated
frequency band of the transmitter.

**Note:

NO----OR3 and NO----OR4 will not change the

transmitter's original frequency and the

transmitter will still operate normally with the

error message on display. To remove the error

message from the display panel, please switch

off the transmitter and switch it on again.

MUTE Control Set-Up

MUTE control enables audio to be muted or un-

muted temporarily.

Press MUTE button to mute audio temporarily.

!

Parameter values can be changed and ACT sync
activate during this MUTE mode.

Press MUTE button to un-mute.

!

GRP CH

M U T E

AF MU TE

(GROUP/CHANNEL)

GRP CH

0 1 0 2

AF M UTE

(ENCRYPTION)

ENC RYPTIO N

N O

AF M UTE

(FREQUENCY)

FRE QUENC Y

485.000MHz

AF M UTE

(AF LIMIT)

AF L IMIT

Y E S

AF M UTE

FR EQ UE NC Y

485.000MHz

AF MU TE

(AF GAIN)

AF G AIN

0 dB

AF M UTE

(AF LOW-CUT)

AF L OW-CU T

LOW CUT

AF M UTE

(RF POWER)

RF P OWER

RF-LO W

AF M UTE

21

22

(AF PHASE)

AF P HASE

INVER T

AF M UTE

(SET LOCK)

SET LOCK

UNLOC K

AF M UTE

Digital Bodypack Transmitter Digital Bodypack Transmitter

External Mute Connector

! External mute connector is a 3.5mm jack. When

an external mute switch cable, MJ-70 (optional)

is connected, user can manually mute and un-

mute the audio temporary.

External mute connector

MJ-70 External Mute Switch (optional)

18

3.5mm jack.

19

External mute switch on/off button.

Note: Plug in the device before power on the
bodypack transmitter.

High Frequency Bypass

a. When other microphones are in use, some

changes may be needed to another microphone
before adding it to the system in order to avoid
high frequency interference, as illustrated in
diagram (1).

b. When a high frequency radio wave causes

interference, it normally affects the system by
generating a persistent noise or by deteriorating
the frequency response. In an effort to
ameliorate these problems, a 330PF bypass
condenser can be added on the cartridge as
shown in diagrams (1) and (2). If this method is
not possible, another option is to add a bypass
condenser on the 4-pin XLR connector as shown
in diagrams (3) and (4).

**The Best Method

(1) Connect to two-wire condenser capsule

Add 330pF bypass capacitor

18

19

(2) Connect to three-wire condenser capsule

Add 330pF bypass capacitor

23

24

Digital Bodypack Transmitter Digital Bodypack Transmitter

**Alternate Method

(3) Connect to two-wire condenser capsule

Add 330pF bypass capacitor

PIN

1

2

3

4

2

3

1

4

AF Input Connections

(1) 2-Wire Electret condenser
microphone Capsule

PIN

SHIELD

1

AUDIO

2

3

4

2

3

1

4

(4) Connect to three-wire condenser capsule

PIN

1

2

3

2

3

1

4

4

Add 330pF bypass capacitor

(2) 3-Wire Electret condenser microphone Capsule

PIN

SHIELD

AUDIO

BIAS

1

2

3

4

2

3

1

4

(3) Dynamic Microphone

2

1

3

SHIELD

AUDIO

PIN

1

2

3

4

2

3

1

4

(4) Electric Guitar

PIN

SHIELD

AUDIO

1

2

3

4

2

3

1

4

(5) Line-in (Impedance 8KΩ ATT. 10dB)

PIN

SHIELD

1

AUDIO

2

3

4

2625

2

3

1

4

Digital Bodypack Transmitter Digital Bodypack Transmitter

Battery Removal and Installation

! Pushing down both snap locks on the sides to

open battery compartment cover. Take out the

two batteries. (Figure 3)

! Insert two fresh AA batteries (alkaline type is

recommended) into the battery compartment

according to the correct polarity (- and +) as

shown in (Figure 4). Then close the battery

compartment cover tightly.

(Figure 4)(Figure 3)

Caution:

Remove the batteries if unused for a long period
of time to prevent battery leakage, corrosion and
causes possible damage to electronics.

Disassemble the Belt Clip

! Turn the bodypack transmitter

to the back side like the right
diagram.

! Pull open one side of the belt

clip and make it depart from
the slot of the bodypack
transmitter like the right
diagram.

! Then the other side of the belt

clip can be departed from the
other slot easily. The whole
belt clip is departed from the
bodypack transmitter
completely like the right
diagram.

27

28

Digital Bodypack Transmitter Digital Bodypack Transmitter

Assemble the Belt Clip

! Turn the bodypack transmitter

to the back side. Put the belt

clip to the right direction and

aim the one side of the belt

clip to the slot of

the bodypack

transmitter like

the right diagram.

! For opposite wear of bodypack

transmitter, just rotate the belt

clip by 180℃ like the right

diagram.

! Put one side of the belt clip to

the slot of bodypack

transmitter and fix it like the

right diagram.

! Pull open the other side of the

belt clip and put it to the

other slot of bodypack

transmitter and fix it like the

right diagram.

29

30