Anaren A2500R24 Series, Руководство пользователя

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Page 18 of 26 A2500R24x – Users Manual
Release Date 01/10/11
antenna gain may not exceed 1W. The following table shows configurations that are compliant
with this use and the expected performance.
Expected
Data Rate Deviation F0min F0max Max Power Channel Rx Filter Link Budget
kb/s kHz MHz MHz dBm kHz KHz dB
1.2 140 2401.3 2480.4 1.0 310.242 650.000
2.4 140 2401.3 2480.4 1.0 310.242 650.000
4.8 140 2401.3 2480.4 1.0 310.242 650.000
10 140 2401.3 2480.4 1.0 310.242 650.000
20 140 2401.3 2480.4 1.0 310.242 650.000
40 140 2401.3 2480.4 1.0 310.242 650.000
75 140 2401.3 2480.4 1.0 310.242 650.000
125 140 2401.3 2480.4 1.0 310.242 650.000
250 140 2401.3 2480.4 1.0 310.242 650.000
Suggested Requirement
In a frequency-agile implementation or an implementation with multiple systems sharing the
same location, using 2FSK or GFSK, the user is encouraged to only use even channel numbers
to avoid overlapping channels (127 channels would thus be available).
Expected
Data Rate Phase F0min F0max Max Power Channel Rx Filter Link Budget
kb/s MHz MHz dBm kHz KHz dB
420 0 2401.8 2480.3 1.0 307.861 812.500
500 0 2401.8 2480.3 1.0 307.861 812.500
MSK Modulation
Requirement Suggested
In a frequency agile implementation or an implementation with multiple systems sharing the
same location, using MSK, it is recommended to only use every 3
rd
or 4
th
channel to avoid
overlapping channels, 85 or 64 channels would thus be available.
It is encouraged to use a medium access technique which should include addressing of
individual transceiver nodes; and should include a combination of a clear channel assessment,
transmit and detect, or a frequency hopping method. This ensures that the un-licensed band
can be shared with other systems/applications.
2.5.2. Europe
For Europe, the maximum power is 100mW, with a maximum spectral density of 10mW per
MHz; but there is no minimum occupied bandwidth requirement. However, a product that will
ship to both US/Canada and Europe must use the settings for US/Canada.
For Europe a medium access protocol is required. The transceiver module provides the
following medium access services:
•
Clear channel assessment
•
8 bit address
•
Receive packet qualification (Address, CRC)
•
Packetized/Frame handling