Sony 300GB Write-Once Optical Disc Cartridge - Manual (Page 14)

14
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 connector
BNC-R, 50
Ω
(2)
RF squelch level
15 dBµ / OFF (0 dBµ = 1 µV)
Audio output level
–40 dBu (0 dBu = 0.775 Vrms with
modulating frequency of 1 kHz and
frequency deviation of ±5.0 kHz)
Accessory connector
D-sub connector (15-pin) (1)
Reception method
True diversity method
Local oscillator
Crystal-controlled PLL synthesizer
Receive frequencies
Models available in USA:
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)
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)
Signal-to-noise-ratio
60 dB or more (A-weighted)
Voice delay 0.375 ms
Deemphasis 50
μ
s
Reference frequency deviation
±5 kHz
Frequency response
40 Hz to 18 kHz
Distortion 0.9% or less (with modulating frequency
of 1 kHz and frequency deviation of
±5.0 kHz)
Tone signal In UWP-D compander mode:
32.382 kHz
In UWP compander mode: 32 kHz
In WL800 compander mode:
32.768 kHz
Indicators POWER 1/2, RF 1/2
Operating temperature
0
°
C to 50
°
C (32
°
F to 122
°
F)
Storage temperature
–20
°
C to +55
°
C (–4
°
F to +131
°
F)
Supply voltage 7.0 V DC (supplied from camcorder or
wireless adapter)
Current consumption
200 mA or less (during 7 V DC)
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.