Adastra H25B User Manual

H25B

Handheld PA with VHF Neckband Mic, USB & Bluetooth

Item ref: 952.412UK

User Manual

Version 1.0

Caution: Please read this manual carefully before operating

Damage caused by misuse is not covered by the warranty

952.412UK User Manual

Introduction

Thank you for choosing the Adastra H25B portable PA system. This all-in-one unit is designed to offer convenient and reliable portable
amplification for a wide range of small public address applications. Please read this manual before using this equipment to avoid
damage through incorrect operation and to get the best performance from your purchase.

Contents

Please take care when unpacking this product. Inspect for any damage and ensure you have the following components…

• H25B Handheld PA speaker unit

• VHF bodypack transmitter

• Neckband microphone

• Shoulder strap

Warning

To prevent the risk of fire or electric shock, do not expose any of the components to rain or moisture.
If liquids are spilled on any component, stop using immediately, allow unit to dry out and have checked by qualified personnel before
further use.
Avoid impact or heavy vibration to any of the components, dropping the microphone can cause capsule failure.
No user serviceable parts inside transmitter or receiver except for battery/charging access - refer servicing to qualified service
personnel.

Safety

• Ensure that mains supply voltage is correct for charging via the integral lead

• Avoid ingress of water or particles into the unit or bodypack transmitter

• Use alkaline or NiMH batteries in the transmitter and remove if unused for long periods.

• Observe the correct polarity when replacing batteries

• Do not attempt to charge USB devices from the type ‘A’ connector

Placement

• Keep all components out of direct sunlight and away from heat sources.

• Avoid impact or crushing of components

• Keep all components away from damp or dusty environments.

Cleaning

• Use a soft cloth with a neutral detergent to clean the outside of each component

• Lightly damp sterile wipes may be used on the microphone head for hygiene purposes

• To avoid damage, do not use solvents to clean the components

Specifications

Power supply: main unit

Mains or internal rechargeable battery

Power supply: VHF bodypack

3Vdc (2 x AA battery)

Output power: max

25W

RF carrier frequency

174.1MHz

RF power

10mW

Frequency response

100Hz - 12kHz

S/N ratio

>75dB

VHF operating distance

35.0m

VHF tuning stability

0.005% quartz crystal locked

FM radio tuning range

88 - 108MHz

Dimensions: VHF bodypack

100 x 65 x 35mm

Weight: VHF bodypack

68.2g (no battery)

Dimensions: main unit

155 x 183 x 285mm

Weight: main unit

2.74kg