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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.
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.
Specifications
1/4 λ wire antenna
Antenna
RF squelch level
15 dBµ / OFF (0 dBµ = 1 µV)
Audio output level
–60 dBV (modulating frequency of
Audio input level
–50 dBV (during –60 dBV output,
Headphone output level
5 mW (16 Ω)
Audio input/output connector
3.5 mm diameter mini jack
Reception method
Space diversity system (true diversity
Local oscillator
Crystal-controlled PLL synthesizer
Receive frequencies
Models available in USA:
Models available in Europe:
Model available in China:
Model available in Korea:
Model available in Thailand
Signal-to-noise-ratio
60 dB or more (A-weighted)
Voice delay
0.375 ms
50 μs
Deemphasis
Reference frequency deviation
±5 kHz
Frequency response
40 Hz to 18 kHz
Distortion
0.9% or less (with modulating frequency
Tone signal
In UWP-D compander mode:
In UWP compander mode: 32 kHz
In WL800 compander mode:
Indicators
POWER, RF 1/2
17
(angle-adjustable)
1 kHz and frequency deviation of
±5.0 kHz)
1 kHz input frequency)
system during one-channel
operation)
470 MHz to 542 MHz (UC14 model),
536 MHz to 608 MHz (UC25 model),
566 MHz to 608 MHz and
614 MHz to 638 MHz (UC30 model),
638 MHz to 698 MHz (UC42 model)
470 MHz to 542 MHz (CE21 model),
566 MHz to 630 MHz (CE33 model),
638 MHz to 694 MHz (CE42 model),
710 MHz to 782 MHz (CN38 model)
925 MHz to 937.5 MHz (KR Model)
794 MHz to 806 MHz (E model)
of 1 kHz and frequency deviation of
±5.0 kHz)
32.382 kHz
32.768 kHz
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