UHF Wireless Microphone System User Manual

UHF Wireless Microphone System User Manual
UHF Wireless Microphone System
(UH1, UH2, UN1, UN2, UHN2, UL1)
User Manual
Features:
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UHF wireless system
Auto-mute on signal drop
Wide frequency response
Operates using AA batteries
Introduction:
Thank you for choosing the Chord UHF-series wireless system. This professional wireless set provides a high quality microphone with UHF radio system
for freedom of movement without loss of audio quality. Please read this manual before using this equipment in order 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…
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UHF wireless receiver
Mains power adapter
6.3mm mono jack lead
2 x 1.5V AA battery (4 pieces for UH2, UN2 or UHN2)
Microphone / transmitter(s) – see table below
Model
Stock code
Microphone 1
Microphone 2
UH1
UH2
UN1
UN2
UHN2
UL1
171.822 / 171.823
171.825 / 171.826
171.838 / 171.839
171.827 / 171.828
171.820 / 171.821
171.846 / 171.847
Handheld transmitter
Handheld transmitter
Neckband mic. + bodypack
Neckband mic. + bodypack
Handheld transmitter
Lavalier mic. + bodypack
Handheld transmitter
Neckband mic. + bodypack
Neckband mic. + bodypack
-
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 - refer servicing to qualified service personnel.
Safety
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Ensure that the correct adapter is used with adequate current rating and that the mains voltage is as stated on the adapter.
Avoid ingress of water or particles into the transmitter(s) or receiver
Use alkaline or NiMH batteries in the transmitter(s) and remove if unused for long periods.
Observe the correct polarity when replacing batteries
Placement
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Keep all components out of direct sunlight and away from heat sources.
Do not place heavy objects on top of the receiver or transmitter(s)
If rack-mounting, secure the receiver to a 1U rack tray and do not place heavy equipment above the receiver.
Keep the transmitter(s) and receiver away from damp or dusty environments.
Cleaning
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Use a soft cloth with a neutral detergent to clean the body of the microphone/transmitter and receiver.
Lightly damp sterile wipes may be used on the microphone grille for hygiene purposes
To avoid damage, do not use solvents to clean the components
Handheld Transmitter
1. Windshield
2. Slide switch – OFF/MUTE/ON
3. Battery compartment cover
Beltpack Transmitter
1.
2.
3.
4.
5.
6.
7.
UHF antenna
LED power indicator
Slide switch OFF/MUTE/ON
MIC input, threaded 3.5mm jack
Frequency label
GAIN ADJUST rotary
Battery compartment
Receiver Rear Panel
1.
2.
3.
4.
Antennae
Power adapter input
Balanced XLR output
Unbalanced 6.3mm jack output
1.
2.
3.
4.
5.
6.
7.
8.
Power ON/OFF switch
Channel A volume control
Channel A Audio indicator LED
Channel A Radio signal LED
Power indicator LED
Channel B Radio signal LED
Channel B Audio indicator LED
Channel B volume control
Receiver Front Panel
Operation
For handheld transmitters, insert the supplied 2 x AA batteries by carefully unscrewing the base to reveal the battery compartment inside the
microphone body, connect the batteries (ensure + and - are the correct way round for each cell) and carefully screw the base back on.
For beltpacks, squeeze down the clip in the centre of the front panel of the beltpack to unfasten the lower half, which hinges outwards to reveal
the battery compartment. Position the supplied 2 x AA batteries inside (ensure + and - are the correct way round for each) and then close the
battery compartment flap until clipped back into position.
Position the receiver within the best available line of sight to the transmitter(s) and connect the DC jack of the supplied power adapter to the
receiver and the plug-top to the mains outlet. Extend both antennae fully upwards and outwards slightly and switch the power on. Turn
microphone level(s) down on the receiver.
Note: for dual sets (with 2 transmitters), both microphones’ outputs will be mixed and fed to both balanced and unbalanced outputs.
Connect the jack or XLR (optional) lead to the receiver’s audio output connector, turn down the volume of any equipment (mixer, amplifier etc.)
that the signal will be fed into and then connect the jack or XLR to the equipment.
Warning! - take care not to point microphones towards speakers – this can cause damaging feedback (loud whistle or howling noise) – try to
point microphones away from the speaker cabinets.
Move the switch on the handheld or beltpack transmitter to the first notch (MUTE) – the LED should light momentarily. If the LED stays on, this is
indicating that the battery is low or discharged. Move on another notch (ON) and gradually increase the microphone level(s) on the receiver, then
increase the volume on the mixer or amplifier until the sound from the microphone can be heard through the equipment.
During use, it may be useful for the reception of the microphone to be muted for a short period of time (e.g. to avoid feedback when walking
across the front of a speaker or avoid handling noise when placing the microphone down momentarily or adjusting a neckband microphone). In
these circumstances, it may be better to move the transmitter switch to the “MUTE” position, which maintains the radio frequency carrier signal
but mutes the microphone input. When this switch is moved back to the “ON” position, the sound will be immediately restored without waiting for
the radio signal to be reinstated.
If the wireless system is not to be used for more than a few seconds, it is preferable to slide the transmitter switch to the “OFF” position, which
mutes and deactivates the radio signal and powers down the transmitter. Be sure to turn down the volume of the mixer or amplifier and then
switch off the receiver.
Unplug signal leads from the receiver and mixer or amplifier when moving or packing away.
If the system is not to be used for long periods of time, remove the batteries from the transmitter and unplug the power adapter from the receiver
and the mains outlet. Retracting the antennae can also help avoid damage when the system is not in use.
SPECIFICATIONS
Carrier type
Frequency stability
Maximum deviation
Audio frequency response
Signal to noise ratio
Audio dynamic range
T.H.D.
Maximum range
Operating temperature
UHF 863 - 865MHz
±0.005%
±25kHz
40Hz – 20kHz
>105dB
>80dB
<0.5% @ 1kHz
50m
-10ºC to +50ºC
RECEIVER
Power supply
Audio outputs
Controls
Indicators
Dimensions
Weight
12 - 18Vdc 500mA (mains adapter supplied)
XLR (balanced), Jack (unbalanced)
Power On/Off, Mic. Volume(s)
Power (main), RF and AF (for each channel)
45 x 210 x 180mm
573g
HANDHELD TRANSMITTER (VH1, VH2, VHN2)
Battery
Switch
RF emission
Capsule type
Dimensions
Weight (without battery)
3Vdc (2 x AA)
Power / Mute / On
>10mW
Dynamic - cardioid response
242 x 45mmØ
238g
BELTPACK TRANSMITTER (VN1, VN2, VHN2, VL1)
Battery
Switch
Connector
Compatible microphones
RF emission
Dimensions (not inc. antenna)
Weight (without battery)
3Vdc (2 x AA)
Power / Mute / On
3.5mm mono jack- threaded
171.855, 171.856, 171.857
>10mW
110 x 68 x 25mm
76g
NECKBAND MICROPHONE (VN1, VN2, VHN2)
Capsule type
Power supply
Connector
Dimensions
Weight
Condenser - cardioid response
3V phantom from beltpack
3.5mm mono jack - threaded
140 x 180 x 60mm
25g
LAVALIER MICROPHONE (VL1)
Capsule type
Power supply
Connector
Dimensions
Weight
Condenser - cardioid response
3V phantom from beltpack
3.5mm mono jack- threaded
40 x 27 x 20mm
20g
FREQUENCY CHART (all regions)
Model
UH1
UH2
UN1
UN2
UHN2
UL1
Stock code
Mic 1
Mic 2
171.822
171.823
171.825
171.826
171.838
171.839
171.827
171.828
171.820
171.821
171.846
171.847
863.1MHz
864.1MHz
863.3MHz
863.8MHz
863.1MHz
864.1MHz
863.3MHz
863.8MHz
863.3MHz
863.8MHz
863.1MHz
864.1MHz
864.3MHz
864.8MHz
864.3MHz
864.8MHz
864.3MHz
864.8MHz
-
Troubleshooting
“POWER” LED does not light on receiver
“POWER” LED is lit but no “RF” or “AF” LEDs
“POWER” and “RF” LEDs are lit but no “AF” and no sound
All LEDs lit but no sound from microphone
Microphone output is very loud or distorted
Microphone output is very low
Ensure power adapter is connected to mains and working properly
Ensure receiver is switched on
Ensure transmitter is switched on
Check that transmitter is not out of reception range
Check that transmitter batteries are good / charged
Check if transmitter switch is in “MUTE” position
Check if neckband or lavalier microphone is connected to beltpack
Ensure transmitter has good / charged batteries
Check if there is another nearby transmitter with the same frequency
Make sure receiver is connected to mixer / amplifier
Make sure that receiver and amplifier / mixer channel volumes are turned up
Turn down GAIN ADJUST on beltpack transmitter
Turn down VOLUME on receiver
Reduce Gain on mixer / amplifier
Ensure that XLR output is not fed to a Line input
Turn up GAIN ADJUST on beltpack transmitter
Turn up VOLUME on receiver
Increase Gain on mixer / amplifier
Ensure that Jack output is not fed to a Mic input
Check transmitter batteries
Note: for further troubleshooting, refer equipment to qualified service personnel for testing
© Chord 2011
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