VH45B

Handheld Compact VHF Wireless System

171.801UK

Description

Handheld VHF wireless microphone with desktop receiver, supplied with power supply, batteries and signal lead.

Safety

Connect the D.C. adapter to the wireless receiver and ensure the correct mains voltage and that the D.C. adapter and lead is intact before plugging into the mains outlet.

Ensure that the handheld transmitter has a 9V battery (PP3) installed which is in good condition with adequate charge (alkaline type is recommended)

Avoid contact with moisture for any of the system components and keep all parts clear of dust and foreign objects.

Keep all components away from heat sources (amplifiers, heaters, radiators etc.) and out of direct sunlight.

Remove battery from the handheld unit and power adapter from receiver when not being used for long periods of time.

Position the receiver on a stable surface and take care when placing the transmitter down so that it doesn’t roll and fall off the surface.

Clean transmitter and receiver periodically with a dry or slightly damp cloth.

Do not use solvents or abrasives on the plastic and metal parts.

Avoid impact or pressure on casing of all components

Features

Stable quartz tuned VHF carrier frequency.
Multi-level high and mid frequency narrowband filtering to eliminate interference.
Individual Mute switch on handheld transmitter to allow muting prior to switching on or off, avoiding clicks and pops.
LED indicators for Power, RF, Audio Peak, Low battery.
Audio companding circuitry for accurate dynamics without audible distortion.
Auto-muting circuitry to eliminate noise when transmitter is not detected.
Neat and compact design.

Product Layout

Receiver

POWER LED – illuminated when power to receiver is on
RF LED – illuminated when receiver detects RF carrier signal
AUDIO PEAK LED – illuminates to indicate audio reaching peak level
VOLUME – rotate clockwise to increase output level
ANTENNA – fold-away VHF telescopic aerial
OUTPUT – 6.3mm jack unbalanced audio output
CASE – sturdy plastic receiver housing
DC INPUT – 2.1mm power connector for 9-15Vdc input

Transmitter

GRILLE – windshield with integral pop filter.
LOW BATT LED – illuminates when battery charge is low.
POWER LED – illuminates to show battery power is on.
POWER & MUTE – switches to activate battery and mute output.
GAIN – screw adjustment inside battery compartment to adjust mic gain.
COVER – screw-on cover for battery compartment.

Operation

With levels turned down, connect a 6.3mm jack lead from the receiver to the P.A. system or mixer and extend the antenna vertical to the receiver unit.

On the handheld transmitter, with the POWER switch off, unscrew the battery cover and connect a good 9V (PP3) battery to the contacts, taking note that the “+” and “-” connections are correct.

With the VOLUME control turned fully down (anticlockwise), connect the DC adapter to the receiver unit and then into the mains outlet, making sure that the adapter and lead are in good condition.

Switch on the POWER on the handheld transmitter and check that the RF LED is illuminated on the receiver. Switch off the MUTE and speak loudly into the microphone, checking that the AUDIO PEAK LED on the receiver flashes with the loudest sounds.

Turn up the level on the P.A. system or mixer and then turn up the VOLUME control (clockwise) on the receiver. The microphone should now be heard through the P.A. system or mixer.

After use, turn down the level on the P.A. system or mixer and then turn down the VOLUME on the receiver, MUTE the transmitter and switch off POWER

Disconnect the receiver from the P.A. system and then unplug from the mains

If not used for a long period of time, remove the battery from the transmitter.

Specification

Specification	Value
Power supply : receiver	9 - 15Vdc 200mA (supplied)
Battery : transmitter	9V PP3 (supplied)
Operating frequency	174.5MHz
Maximum range	50.0m
Output connection	6.3mm jack
S/N ratio	>85dB
THD	<0.2%
Dimensions : transmitter	250 x 50mmØ
Dimensions : receiver	150 x 110 x 35mm
Weight : transmitter	280g
Weight : receiver	190g

Precautions

	CAUTION
	RISK OF ELECTRIC SHOCK DO NOT OPEN
CAUTION : TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

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

Safety Notice

Prior to use, read through this safety guide.
Pay attention to safety warnings.
Observe all operating requirements.
For any items designed for indoor use only, do not operate near water or in humid environments.
For cleaning, only use a lint-free, dry cloth.
Install according to the specifications.
Place away from heat sources or heating appliances.
During placement, ensure adequate support for the product and access to controls and connectors.
Do not obstruct any cooling vents or openings and allow adequate space for air flow.
Use only power connections supplied with the product or suitable equivalents.
Do not modify the equipment in any way.
For any mains powered appliances, ensure that the mains voltage is as described in the specifications.
Keep powered products and batteries away from the reach of children.
In case of malfunction, water ingress or other damage, consult qualified service personnel.
Avoid pressure or impact to the housing that may result in damage when transporting or installing this product.
For any Earthed mains product, ensure that the power supply has a protective Earth connection.
Keep all packaging materials out of reach of children.

Disposal : The "Crossed Wheelie Bin" symbol on the product means that the product is classed as Electrical or Electronic equipment and should not be disposed with other household or commercial waste at the end of its useful life. The goods must be disposed of according to your local council guidelines.