KAM KWD220 HH User manual

M A D E I N C H I N A
Due to continuous product development, please ensure that you have downloaded
the latest instruction manual for this product from the Kam website at www.kam.co.uk
M A N U A L V E R S I O N 1 . 0
0 1 / 0 6 / 1 2
For the latest 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: [e-mail] • Web: www.lambaplc.com
Due to continuous product development, specifications and appearance are subject to change. © Copyright Lamba plc 2012. E&OE.
KWD220 HH
2.4GHz dual hand held wireless 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).
If this product is ever no longer functional please take it to a recycling plant for environmentally friendly disposal.
CE declaration of conformity
R&TTE Directive (1999/5/EU), EMC Directive (2004/108/EU), Low Voltage Directive (2006/95/EU).
The declarations are available on application from [e-mail]
Before putting the devices into operation, please observe the respective country-specific regulations.

Before use
The handheld microphones requires 2 x AA batteries in each microphone. Please use quality branded batteries for
the best results. Ensure the batteries are fitted correctly and that the polarity is correct. The battery LED will flash
when the battery power level is low.
Place the reciever on a suitable flat surface. Plug in the DC mains adaptor into the reciever. Connect the 6.35mm
mono jack from the reciever into a suitable mic/mixer input.
Important note
Before you plug the DC adaptor into a suitable mains voltage supply, 240v or 110v AC. Please check the voltage
input of the power supply is correct, as different countries use different voltages.
Top panel
1. Channel 1 volume control
2. Channel 1 pairing LED
3. Channel 1 RF LED
4. Power on LED
5. Channel 2 RF LED
6. Channel 2 pairing LED
7. Channel 2 volume control
Rear panel
1. Channel 2 dipswitch
2. 6.35mm audio output to mixer / mic input socket
3. DC mains adaptor input
4. Power on/off switch
5. Channel 1 dipswitch
6. Channel 1 aerial
7. Channel 2 aerial
5
1
2
4
6
7
3
5
1
2
4
6
7
3

Dipswitches
2406MHz/ 2408MHz/ 2410MHz/ 2450MHz/ 2414MHz/ 2416MHz/ 2418MHz/ 2420MHz/
2446MHz/ 2448MHz/ 2450MHz/ 2452MHz/ 2454MHz/ 2456MHz/ 2458MHz/ 2460MHz/
2422MHz/ 2424MHz/ 2426MHz/ 2428MHz/ 2430MHz/ 2432MHz/ 2434MHz/ 2404MHz/
2462MHz/ 2464MHz/ 2466MHz/ 2468MHz/ 2470MHz/ 2472MHz/ 2474MHz/ 2444MHz/
This wireless receiver has 16 available channels, each channel has 2 sub frequencies which are automatically
selected by the receiver, the receiver works in the same way as a diversity radio mic system and will automatically
switch between the 2 sub frequencies to obtain the best possible signal available on that channel.
You cannot manually select a sub frequency.
(A maximum of 4 transmitters should be used at any one time)
Hand held microphone
1. Mic mesh
2. Power LED
3. On/off switch
4. Battery cover
5. Battery
2 x AA batteries per microphone
5
1
2
4
3

Pairing microphones to your reciever
IMPORTANT - Please read the instructions fully before you start pairing
There is a time limit to pair the microphone, if the pairing LED does not illuminate (either flashing or static) turn the
handheld microphone off, then press and hold the pairing button to start the sequence again.
1. Using the dipswitches on the rear of the reciever select the desired channel to be paired with the microphone
(see chart above for frequencies ond switch settings).
2. Turn the power on to the reciever and the red power LED will illuminate.
3. Remove the battery cover from the handheld microphone.
4. Press and hold Channel 1 pairing button until the green RF LED flashes, then release the pairing button.
(while the LED is flashing) continue to step 5.
5. Hold the microphone approx 6 inches above the reciever, with the open battery compartment towards the
reciever.
6. Turn on the power to the microphone and the red battery LED will illuminate.
7. Then press and hold the microphone on/off button (make sure green RF LED is still flashing).
8. When pairing is complete the green RF LED will stop flashing and will stay illuminated.
9. The green LED may go off due to the microphone being switched off. Turn microphone back on using the
on/off switch. If the geen RF light is illuminated and remains on then the mic is paired.
10. Repeat these steps to pair Channel 2 microphone.
11. There is no need to repeat this everytime you use the system as the frequencies will be locked in and stored
for the next use.
12. If in future you need to re-tune the microphone due to interference etc, please follow the above steps again
for one or both microphones as required.
IMPORTANT NOTES
Do not set both microphones to the same frequency as this will cause interference and may damage your
equipment. If the interference is occuring make sure that your channel selections are far enough apart from each
other. See channel frequency list for help.
Trouble shooting
Problem
Check
No output from
microphone
Check power to reciever is on and the red power led is illuminated, check batteries in
handheld microphone
Check the microphone volume level is turned up sufficiently ( one for left and one for
right hand microphone)
Check that the 6.35mm audio lead from the reciever to your mixer is connected correctly
Check the microphone input on your mixer has the correct volume and level settings
The hand held
microphone
will not
connect to the
reciever
Check batteries and fully charged (always use good quality branded batteries)
Check that the microphone is paired correctly to the reciever . the green RF light should
illiminate. If not ,Follow steps for pairing and try again
Ensure that the microphone frequency is not set the same as the other microphone. Use
the dipswitches on rear of the reciever to select a a different frequency

Specifications
Receiver
Frequency: 2404-2476MHz
Built-in ACT system
16 preset channels
Dynamic range: 85dB
Total harmonic distortion: 0.1%
Frequency response: 40Hz-15kHz±3dB
Audio output level: 0±450mV
Range: 30m optimal line of sight
Twin aerials
Signal to noise ratio: more than 90dB
Receiving sensitivity: -80dBm
Mixed outputs
Power supply output range: DC 12-17V
Power consumption: 2w
Power supply MA: 110mA
Dimensions (WxHxD): 190 x 155 x 41mm
Weight: 0.25Kgs
Handheld microphones
Mic power on & off
Transmitter power: 10mW
Modulation type: GFSK
Spurious emission: -20dBm
Battery voltage & type: 1.5V AA x 2
Continuous usage (battery time): 5 hours approx
Dimensions (WxHxD): 53 x 53 x 236mm
Weight: 0.22Kgs