Takstar DA-251 User Manual

: www.takstar.com

:

: 516100

: : : [e-mail]

: : : [e-mail]

GUANGDONG TAKSTAR ELECTRONIC CO., LTD.

Website: www.takstar.com

Address: Longqiao Road, Longxi, Boluo, Huizhou Guangdong, 516100, China

International Sales Department

Tel: [phone] Fax: [phone] E-mail: [e-mail]

Domestic Sales Department

Tel: [phone] Fax: [phone] E-mail: [e-mail][phone] [phone]

Wireless Voice Amplifier

DA-251

User’s Manual

GUANGDONG TAKSTAR ELECTRONIC CO., LTD.

12 1

Wireless Amplifier

Frequency Range: 220-270MHz (enjoying more than 40 kinds of

frequency spot)

Sensitivity: -80dBM (S/N 30dB)

Mute Mode: Noise Locking

Resonance Interfere Rate: >50dB

False Image Interfere Rate: >50dB

Total Harmonic Distortion: < 1% (1kHz)

Output Power: about10W

S/N Ratio: >80dB

Frequency Response: 100Hz-12kHz

Input Signal: wired MICX1, wireless MICX1

Speaker: 4 /10W

Power: DC 12V or 10.8V (2Ah Ni-MH battery)

Effective Using Distance: 20m of radius overrun, 40m in the open

area;

Weight: 1.1kg

Transmitter:

Frequency Steadiness: ±0.005%

Harmonic Rejection: 40dBm

Current Consumption: about 25mA

Operating Voltage: DC 9V

Specification

2 11

VOICE AMPLIFIER

DA-251

POWER

VOLUME

ON/OFF

RF

TONE

CHARGE

VOL

OFF ON

POWER

MIC

SimpleI Method In Case Of Trouble

If there are any other troubles or problems observed, please do not open and repair it by

yourselves. Please, first contact our distributor or directly come back to us. We will try our

best to provide you with professional and efficient service.

Phenomena

The receiver is turned on, but the indicator

does not light

The “RF” indicator lights while speaking,

but no output signal is available

When the using distance gets shorter, the

signal becomes unsteady

Sound quality gets worse

Elements

The battery power is running off, please

recharge the inside battery in time.

1.Please turn on the power switch of

transmitter.

2.Please adjust the volume control of both

transmitter and amplifier to the proper

position.

1. Pull out the antenna and check if the

batteries are running off, replace them

with fresh ones or recharge them.

2.If the receiver is put in an inappropriate

position, ie. on the ground or at the

corner of the wall or in a strong

electromagnetic filed, please change its

position.

1.The battery of both amplifier and

transmitter is running off.

2.If there is same frequency signal

problem: do not use two machines with

same frequency at the same time in the
same area. (The distance must be at
least 80m between two machines with

same frequency)

MIC IN AUX IN OUTPUT DC 12V