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900 MHz VS 2.4 GHz
Confusion
The popularity
of wireless color video monitors is growing exponentially
as a necessary device for parents to help protect both
infants, older children, and handicapped adults. Unfortunately, many
families are extremely disappointed when they learn from
experience that the monitors can be rendered useless by
radio interference that may be generated both inside
their home as well as from the external environment.
Other common household devices such as microwave ovens,
portable telephones, and wireless computer networks can
wreak havoc on a wireless monitor. This is largely
because many of these devices operate at 2.4 GHz as does
most of the wireless monitors on the market today.
The resulting conflict can be unpredictable but at |
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its worst
none of the devices work properly. Below,
we have listed some of the strengths and weaknesses
of each technology in the hope that customers can
make the right choice for their needs. |
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2.4 GHz |
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Strengths |
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Weaknesses |
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Cameras typically can
send the signal over a greater distance than
900 MHz devices.
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The 2.4 GHz signal can
more easily penetrate walls.
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A larger variety of
cameras are available that operate at 2.4 GHz
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2.4 GHz monitors tend to
be able to handle a larger number of cameras.
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Many competitive devices
operate at 2.4 GHz and may cause conflicts.
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The nature of any
interference can be unpredictable. Other
household devices may cause interference with
the monitor but at other times the monitor may
render a computer network inoperable.
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900 MHz |
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Strengths |
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Weaknesses |
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As more household devices
are designed to operate at 2.4 GHz there are
fewer devices that create conflicts so they
tend to experience less interference.
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The technology has been
perfected and has proven to be very reliable.
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A transmission range of
300 feet is generally standard.
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Units are less expensive
than 2.4 GHz devices.
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The transmission range
tends to be shorter than 2.4 GHz devices.
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Monitors seem to be
limited to handling 2 cameras simultaneously.
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Fewer choices are
available since most manufacturers are moving
to 2.4 GHz.
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