Xetawave Xeta9-E, Руководство пользователя

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3.4 RF Settings
The upper portion of the RF Transmission page defines the frequencies and
modulation used by the radio and the lower portion defines the networking
parameters and how the radio works inside a network.
3.4.1 RF Parameters
The “ RF Band ” allows the radio to operate in the ISM (902-928MHz) band or the MAS
(928-960MHz) band. MAS is a licensed band and one is not permitted to use this band
without an appropriate license. The power levels of the ISM and the MAS (if permitted)
bands are set in units of milli-Watts, from 10mW to 1000mW for ISM and from 10mW to
4000mW for MAS (depending upon specific frequency).
Once the band is set, the specific frequencies used must be defined. For ISM, a range of
frequencies is used and the radio may hop between frequencies within the range. For
MAS, specific frequencies are used for transmit and for receive and the radio maintains
those frequencies at all times.
The ISM input requires a “ Band Start ” and a “ Stop ” frequency which must be no wider
than 902MHz and 928MHz. Additionally, a range of frequencies within the band may be
excluded. Care must be taken so that enough frequencies are available for the radio to