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Radio Frequency Data Collection (RFDC) is used
to communicate information from a mobile location to
a host computer in real-time. RF terminals provide
a wireless data entry and/or display with an RF base
station which is connected to a host computer. RFDC
provides an accurate, real-time system by allowing
the host computer to interactively verify and update
data. In addition, it eliminates paperwork, increases
customer service, and reduces space requirements. RFDC
can substantially improve an operationŐs efficiency.
RF terminals can be hand-held or secured to forklifts
or other material handling equipment. In warehouses,
RFDC allows shipping, receiving, order picking, stocking,
etc. information to be transmitted directly to/from
terminal operators and the host computer. In other
applications, such as retail, RF terminals are used
for price verification, order entry, and direct store
delivery.
An essential step in establishing an RFDC system
is to perform a site survey to determine placement
of the base station to reduce or eliminate RF interference.
This site survey is generally performed by the manufacturer
or contracted out. Some RF equipment manufacturers
build-in the capability of performing site surveys
with the hand held RF terminals by providing an audible
feedback to the base station when the RF signal can
be recognized between the receiver and transmitter.
This can be used to determine if repeaters are required.
Radio frequency products in the past have been
out of the price range for most small to medium size
businesses. Recent advances in RFDC technology have
sprouted innovative products reducing prices so that
smaller companies can afford these type of products.
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