Assistive Sound AS201T User manual

Brand: Assistive Sound

Model: AS201T

Type: User manual

AS201T

UHF - PLL 16-Channel switchable Tour

Guide and wireless microphone system.

AS201T Beltpack transmitter

Page - 1 -

Introduction

Thank you for choosing this UHF - PLL 16 Channel

switchable tour guide and wireless microphone system

AS201T. This manual includes the complete functions and

operations of the tour guide and wireless microphone

systems. Please read this manual carefully in order to

operate and use the system to its fullest potential.

Descriptions of functions

AS201T Beltpack transmitter

1. Channel selector

2. Tx LED indicator

3. Power switch & Mic. volume

4. PL LED indicator

5. Build-in microfphone

6. 3.5mm Mic. input jack

7. 3.5mm Aux input jack

8. DC input & recharging jack

9. Belt clip

10. Battery box

11. Recharging bottom contacts

12. Battery cover

AS201T Beltpack transmitter

Page - 2 -

Installation and operation

Inserting the batteries into the transmitter.

Open the battery cover by pushing the open mark and

sliding the cover down. Insert two 1.5V AA type dry cell

batteries or two 1.2V AA size NiMH rechargeable batteries

into the battery box. Match the battery terminals marked

“+” with the “+” on the label in the battery box.

Charging the batteries.

Use either charger AS402C, AS412C, AS436C or AS450C to

recharge. Simply place the transmitter into the charger

slot. The recharging bottom contacts will connect to the

charger for fast charging. Usually full-charged batteries

can be used for approximately 10 hours.

Warning:

Do not place the transmitter with Alkaline (type dry cell)

batteries into the charger.

AS201T Beltpack transmitter

Page - 3 -

AS201T Transmitter operation.

1. The transmitter has one switch only for power and

volume adjustment. Turn the switch clockwise to

active the transmitter and adjust volume. Turn

counter-clockwise to deactivate the transmitter and

minimize volume. When turning on the transmitter,

the TX light will light up green, this indicates that the

transmitter is transmitting normally.

2. The TX light turns red if the batteries are low and

need to be recharged or replaced soon. The

transmission still can function for approximately 30

minutes. If the batteries run out the TX light turns off

and the PL light turns red, this indicates that the

transmitter stops functioning and the batteries need

to be recharged or replaced.

3. Use the channel selector with 16 pre-programmed

frequencies (0 to 9 and A to F) to select the channel

to transmit.

4. Use a condenser microphone with 3.5mm input jack.

Aux input is available for connecting MP3-, CD player

or other audio sources and is prior to condenser

microphone input and build-in microphone. When Aux

input and microphone input are not connected, the

build-in microphone is activated and it will receive

voice and sound.

5. All input levels are controlled by the power switch.

AS201T Beltpack transmitter

Page - 4 -

Maintenance

Avoid excessive heat

Don’t leave the transmitter in the hot sun, on a radiator or

near other sources of high temperature.

Avoid rough handling

The transmitter may be damaged if dropped.

Fully charged batteries

Before storing, fully recharge the batteries.

If possible recharge batteries once a month during storage

and again before first use.

Remove batteries

Remove the batteries when storing the unit for 3 months

or longer.

Battery terminals

Keep the contacts clean and inspect them often to ensure

that they are not corroded. If they become corroded,

polish them with a pencil eraser.

AS201T Beltpack transmitter

Page - 5 -

Trouble shooting

Problem

Solution

No power

Check if the power switch is

turned on.

Turn off the unit and check if the

batteries run out or are not

installed properly

No sound

Check if the transmitter and the

receiver use the same channel.

Check if the volume of the

transmitter or receiver is too low.

Check if the distance between

transmitter and receiver is too far.

Check if the transmitter and the

receiver are too close to metal

objects.

Sound interference

If there are two or more

transmitters in use, select

different channels for each

transmitter.

Check if there are other

transmitters near by and change

to a different channel.

Aux distortion

Check if the volume level of the

transmitter is too high or too low.

AS201T Beltpack transmitter

Page - 6 -

Feature

1. AS201T transmitter, with build-in microphone. Can

also work with condenser microphones or headset

microphones.

2. AS201T transmitter can use a DC+5V switching

adapter to provide power and can use chargers

(AS402C, AS412C, AS436C or AS450C) for recharging

internal batteries.

3. applicable occasion;

 Tour guide

 Museum and factory visit

 Oral multi-languages translating system

 Journalist V8 voice recording

 Audio - visual language teaching

 Assist wireless amplification system

 Assistive listening systems

 Personal induction loop systems

AS201T Beltpack transmitter

Page - 7 -

Specifications

AS201T Beltpack transmitter

 Oscillation mode

PLL synthesized

 Carrier frequency

range

863~865 MHz

 Frequency

16 Pre-programmed switchable

frequencies

 Max deviation

+/- 30 kHz, with level limiting

 Dynamic range

>80 dB

 T.H.D.

<1%

 Pre/De-Emphasis

<50 s

 DC in

5V (with 2.5mm jack)

 Mike

Condenser microphone

 Antenna

In side loop antenna

 RF output

10 mW (according to regulation)

 C/N Ratio

>110 dB

 Spurious

<-60 dBc

 Operating range

up 45 ~ 65 meters (open field)

 Operating temp.

-10°C ~ +60°C

 Battery

1.2V (NiMH 1300mA)*2AA

rechargeable battery

1.5V*2AA Alkaline disposable

 Dimensions

(L*W*H)

98 * 66 * 27mm

 Weight

80gram (without batteries)

RoHS

conform

Assistive Sound AS201T User manual

Brand: Assistive Sound

Model: AS201T

Type: User manual

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Assistive Sound AS201T User manual

Assistive Sound AS201T User manual

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