KAM KWM1900 User manual
UHF 863.00 - 865.00MHz frequency band
SMT technology
Preset 16 channel PLL system
Frequency stabilisation: < ±30ppm
Dynamic range: > 100dB
Total harmonic distortion: < 0.5%
Frequency response: 40Hz-15KHz ±3dB
Power consumption: 100mA
Signal to noise ratio: > 100dB
Image & spurious rejection: > 80dB
Border upon channel rejection: > 80dB
Receiving sensitivity: 5dBuV (SINAD=30dB)
De-emphasis: 50us
4 different Kam KWM1900 kits available:
Hand held mic system | Wireless headset system | Bodypack system | Instrument/guitar bug system
MANUAL VERSION 4.0
20-02-13
For the latest instruction manual updates and information on the entire Kam range visit:
www.kam.co.uk
Kam products are manufactured by: Lamba plc, Unit 1, Southfields Road, Dunstable, Bedfordshire, United Kingdom LU6 3EJ
Telephone: (+44) (0)1582 690600 • Fax: (+44) (0)1582 690400 • Email: [email protected] • Web: www.lambaplc.com
If this product is ever no longer functional please take it to a recycling plant for environmentally friendly disposal.
Due to continuous product development, specifications and appearance are subject to change. © Copyright Lamba plc 2012. E&OE.
KWM1900
Wireless microphone system
Thank you for purchasing this Kam product, we are sure that it will serve you for many years to come.
To optimise the performance of this product, please read these operating instructions carefully to familiarise
yourself with the basic operations of this unit. Please retain them for future reference.This unit has been tested at
the factory before being shipped to you.
To prevent or reduce the risk of electrical shock or fire, do not expose the unit to rain or moisture. To prevent a fire
hazard, do not expose the unit to any naked flame sources. Unplug this apparatus during lightning storms or if it is
unlikely to be used for long periods of time.
When installing the unit, please ensure you leave enough space around the unit for ventilation. Slots and openings
in the unit are provided for ventilation to ensure reliable operation of the product and to protect it from overheating.
To prevent fire hazard, the openings should never be blocked or covered.
If the unit is powered by the mains, always handle the power cable by the plug. Never pull out the plug by pulling
on the cable. Never touch the power cable when your hands are wet as this could cause an electric shock. Do not
tie a knot in the cable. The power cable should be placed such that it is not likely to be stepped on. A damaged
power cable can cause a fire or give you an electrical shock. Checkthe power cord periodicaly, if you ever find that
it is damaged, replace it before using the unit again. Contact your retailer for a replacement.
The voltage of the available power supply differs according to country or region. Be sure that the power supply
voltage of the area where this unit is to be used meets the required written on the unit.
The lightning flash symbol inside a triangle is to alert the user to the presence high voltage within the
unit’s enclosure that may be of sufficient power to constitute a risk of electrical shock to persons.
Caution: to prevent the risk of electric shock, do not attempt to open the unit. No user-serviceable parts
inside. Refer all servicing to qualified service personnel.
The exclamation mark inside a triangle is intended to alert the user to the presence of important operating
and maintenance instructions in the literature accompanying the appliance.
Select the installation location of your unit carefully. Avoid placing it in direct sunlight or locations subject to
vibration and excessive dust. Do not use the unit where there are extremes in temperature (below 41ºF / 5ºC or
exceeding 95ºF / 35ºC).
Unpacking and safety Please unpack your new product carefully. Your new product should reach you in perfect
condition. Please check that no damage has occurred during transit. If any damage is found, do not operate your
unit. Please contact the retailer you purchased it from immediately. If there is any damage to the mains cable do
not use the device. Always disconnect the unit from the mains supply when carrying out any cleaning of the unit.
Manufacturer declarations
In compliance with the following requirements: RoHS Directive (2002/95/EU) and WEEE Directive (2002/96/EU),
and Battery Directive (2006/66/EU). If this product is ever no longer functional please take it to a recycling plant
for environmentally friendly disposal. Any supplied batteries can also be recycled.
CE declaration of conformity
R&TTE Directive (1999/5/EU), EMC Directive (2004/108/EU), Low Voltage Directive (2006/95/EU).
Before putting the devices into operation, please observe the respective country-specific regulations.
Kam KWM1900 features
Uses the UHF 863.00 - 865.00MHz band to avert frequency interference
Automatic frequency scan searches for available frequencies
PLL system, preset 16 non-interference channels
SMT technology
The receiver uses one 1.5V AA battery
The hand held microphone uses a single 1.5V AA battery
Ideal working distance is up to 30 metres
Easy to use and portable - the receiver connects directly to an audio mixer or amp
Ideally suited for:
Aerobics instructors
Vocalists & singers
Public speakers
Fitness instructors
Dance instructors
Musicals & theatre
Schools & colleges
DJs & musicians
Auctioneers
Video & film makers
Features of the KWM1900 receiver
1. Power switch
2. Volume control
3. Antenna
4. Power supply LED indicator
5. Signal and audio indicator
6. Battery cover
7. ACT button
8. Channel select switch
9. ACT IR
10. Receiver output plug
Battery compartment cover removal
Pairing the receiver with your transmitter (handheld mic, headset or guitar bug but not bodypack)
1. Open the receiver’s battery cover and insert a single 1.5AA battery.
2. Insert the correct battery in the transmitter (handheld mic, headset or guitar bug but not bodypack).
3. Switch the receiver ON using the power switch.
4. Choose the channel frequency you wish to use with the dipswitches on the receiver (see below chart).
5. Switch the transmitter ON using its power switch and remove any battery compartment covers that may
obscure the ACT IR (handheld mic, headset or guitar bug but not bodypack).
6. Press the ACT button on the receiver while simultaneously pointing the receiver’s ACT IR closely towards the
transmitter’s ACT IR. Keep pressing the button until the light on the receiver goes green.
7. The receiver light will only turn green when it matches the same frequency as the transmitter.
8. Replace all battery compartment covers that you have removed to pair the devices.
9.The receiver and transmitter are now paired and will work together.
Channel frequency chart with dipswitch positions
When you have paired the receiver with your system’s transmitter you need to plug the receiver into a mic input
via the ¼inch jack plug and set your audio level.
Handheld microphone (if supplied with your system)
Ensure that the ON switch is engaged whilst you are pairing the devices. Once paired, the mic is ready to use.
Headset microphone (if supplied with your system)
Ensure that the ON switch is engaged whilst you are pairing the devices. Once paired, the mic is ready to use.
Place the headset over your ears and adjust the microphone so that is in front of your mouth.
Guitar (instrument) bug (if supplied with your system)
Ensure that the ON switch is engaged whilst you are pairing the devices. Once paired, the bug is ready to use.
Insert the jack plug into the output jack socket of your guitar/instrument and adjust the volume to suit.
Pairing the KWM1900 bodypack with the receiver (if supplied with your system)
Ensure that the dipswitches on both the receiver and the bodypack match each other. Once both are set to the
same channel (see above table), the bodypack is ready to use. Insert your chosen microphone or instrument lead
into the audio socket of the bodypack and adjust the volume to suit.
Features of the KWM1900 microphone (if supplied with your system)
1. Grille
2. Power supply LED indicator
3. Power switch
4. Battery compartment cover
5. ACTIR
6. Battery compartment
Features of the KWM1900 headset microphone (if supplied with your system)
1. Power switch
2. Antenna
3. ACT IR (shown with battery cover removed)
4. Battery compartment
5. Power supply LED indicator
6. Microphone
Features of the KWM1900 guitar bug (if supplied with your system)
1. Battery compartment
2. Antenna
3. Power switch
4. 15dB pad switch
5. ¼inch jack instrument insert
6. Power supply LED indicator
7. ACT IR (not shown)
Features of the KWM1900 bodypack (if supplied with your system)
1. Antenna
2. Battery compartment (dipswitches inside)
3. Audio/microphone input
4. Power supply LED indicator
5. Power switch
6. Volume control knob
7. Lavalier microphone (not shown)
8. Headset microphone (not shown)
9. Instrument lead (not shown)
Specifications
Comprehensive performance
Carrier frequency UHF 863.00 - 865.00MHz
Frequency stabilisation Less than ±30ppm
Dynamic range More than 100dB
Total harmonic distortion Less than 0.5%
Frequency response 40Hz-15KHz ±3dB
Audio output level Mix type: 0-±400mV
Fixed receiver
Consume power 100mA
Signal/noise ratio More than 100dB
Image &spurious rejection More than 80dB
Border upon channel rejection More than 80dB
Receiving sensitivity 5dBuV (SINAD=30Db)
De-emphasis 50us
Handing microphone
Transmitter power 30mA
Modulation type FM
Max deviation ±40KHz
Spurious emission More than 60dB (with carrier)
Battery voltage 1.5 x 1
Continuous usage Approx.5 hours
Bodypack microphone
Transmitter power 30mA
Modulation type FM
Max deviation 25KHz
Spurious emission More than 40dB (with carrier)
Battery voltage 1.5 x 2
Continuous usage Approx.6 hours
Always use high quality branded batteries.
Due to continuous product development, specifications and appearance are subject to change.
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