16
Important Notes on Use
Usage and Storage
• Operating the UWP-D series devices near electrical
equipment (motors, transformers, or dimmers) may
cause interference due to electromagnetic induction.
Keep the devices as far from such equipment as
possible.
• The presence of lighting equipment may produce
electrical interference over a wide frequency range. In
this case, interference may fluctuate with the position of
the receiver antenna and position of the transmitter.
Position the devices so that interference is minimized.
• To avoid degradation of the signal to noise ratio, do not
use UWP-D devices in noisy places or in locations
subject to vibration, such as the following:
– Near electrical equipment, such as motors,
transformers, or dimmers
– Near air conditioning equipment or places subject to
direct air flow from an air conditioner
– Near PA (public address) loudspeakers
– Near equipment that might knock against the receiver
Keep devices as far from such equipment as possible or
use buffering material.
Cleaning
Clean the surface and the connectors of devices with a
dry, soft cloth. Never use thinners, benzene, alcohol, or
any other chemicals, since these may mar the finish.
Specifications
Antenna
1/4
λ
wavelength wire antenna
Audio input connector
SMC9-4S (female)
Reference audio input level
–60 dBV (MIC input, 0 dB attenuation)
Frequency response
40 Hz to 18 kHz
Attenuation
0 dB to 27 dB (3 dB steps)
Indicators
AUDIO, POWER/MUTING
Oscillator type Crystal-controlled PLL synthesizer
Carrier frequencies
Models available in USA:
470 MHz to 542 MHz (UC14 model),
566 MHz to 608 MHz and
614 MHz to 638 MHz (UC30 model),
638 MHz to 698 MHz (UC42 model)
Models available in Europe:
470 MHz to 542 MHz (CE21 model),
566 MHz to 630 MHz (CE33 model),
638 MHz to 694 MHz (CE42 model)
Model available in China:
710 MHz to 782 MHz (CN38 model)
Model available in Korea:
925 MHz to 937.5 MHz (KR Model)
Model available in Thailand:
794 MHz to 806 MHz (E model)
RF output level 30 mW/5 mW selectable (for model
available in USA, Europe, and
China)
10 mW/2 mW selectable (for model
available in Thailand and Korea)
Preemphasis
50
μ
s
Reference deviation
±5 kHz (–60 dBV, 1 kHz input)
Distortion
0.9% or less (–60 dBV, 1 kHz input)
Signal-to-noise-ratio
60 dB or more
Voice delay
0.35 ms
Tone signal frequency
In UWP-D compander mode:
32.382 kHz
In UWP compander mode: 32 kHz
In WL800 compander mode:
32.768 kHz
Supply voltage 3.0 V DC (two LR6/AA size alkaline
batteries)
5.0 V DC (supplied from USB
connector)
Battery life (measured with two Sony LR6/AA size
alkaline batteries at 25 °C (77 °F))
Approx. 8 hours with output power of
30 mW (for model available in USA,
Europe, and China)
Approx. 10 hours with output power of
10 mW (for model available in
Thailand and Korea)
To prevent electromagnetic interference
Some channels may be unable to be used due to noise
generated due to the effects of external noise and/or
radio interference. In this case, it is recommended to
stop transmitting (turn the power off) or change to
another frequency (change channel).
To prevent electromagnetic interference from
portable communication devices
The use of portable telephones and other
communication devices near the devices may result in
malfunction and interference with audio signals. It is
recommended that portable communication equipment
near the devices be turned off.
