About Digital Wireless Technology - Uniden BW2101 Owner's Manual

About Digital Wireless Technology

This section offers some helpful information to overcome most problems you
may encounter.
Problem Diagnosis
About 2.4GHz Digital Wireless Signal
This innovative digital wirelss solution integrates advance Frequency Hopping
Spread Spectrum (FHSS) technolgy. This technology greatly reduces the
interference that comes from other devices using the same radio frequency
(2.4GHz), e.g. WIFI, Bluetooth, cordless phone...etc. You now can experience
improved wireless surveillance quality without flicker and noisy images.
However, weaker signals (lag or still image) may be observed from time to
time, depending on the environment where the system is installed.
Complies with FCC part 15.247, ETSI (EN) 300 328; audio / video signals
transmitted out up to about 500 foot (150 metres) line of sight can be
supported. Line of sight installation though, is usually not a common practice.
Factors affecting transmission include microwave ovens or other high
frequency electromagnetic waves. Reinforced concrete walls, large scale metal
products and metal furniture should not be located near the camera or the
monitor unit. Do not place near water. Human bodies such as a person passing
through may cause unstable signal quality.
How to improve the wireless signal quality
If possible, remove obstacles in betwen the camera or the monitor that might
reflect the signal. These could include furniture, cabinets, and walls. If you feel
the wireless signal is not good enough, place the moniotr at a new angle or
re-adjust its position to make an improvement. Or simply relocate the camera
closer to the monitor.
Why Image Compression?
In order to provide a private and interference free wireless service, this digital
wireless solution works on a 2Mb narrow hopping band. Different from
traditional 2.4GHz analog signal, this digital wireless signal is compressed and
presented as Motion JPEG (MJPEG) format. By digitizing and compressing the
raw analog data, the bandwidth is used more efficiently and securely.
Consequentially, you might observe an indent image line if the signal is viewed
on a larger display monitor or plasma TV.
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