Proxim HRFCF1 Manuale Utente

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OpenAir radios use a radio technology called frequency hopping
spread spectrum.  This means that the radio signal is constantly
moving from one frequency to another while sending packets of
data. This hopping technique allows for multiple hopping
patterns to be used in the same area while minimizing interfer-
ence.

OpenAir networks require that one device coordinates the
frequency hops for all devices within a particular wireless cell.
This device is called the Master.  It might help you to think of
the Master as the conductor of a frequency hopping orchestra.
The Master keeps time so all units know when to hop and to
what frequency.  There must be at least one OpenAir product on
a network designated as the Master.

In Windows CE environments, the Master will frequently be an
Access Point or a desktop computer with an OpenAir USB
Adapter or PC Card installed.  In a roaming environment with
OpenAir Access Points, all Access Points are Masters.

OpenAir units that synchronize to the Master and follow its
signal to learn what frequency in the pattern the Master is
currently using are known as Stations.

A Windows CE device with the OpenAir CompactFlash Card
installed is always a Station and cannot be configured to act as a
Master.