Modulation
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Differential Binary Phase Shift Keying (DBPSK)
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CSS / CSS / Gaussian Frequency Shift Keying (GFSK)
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2-GFSK
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Max. total message size (bytes)
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26
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256
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256
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Max. payload size (bytes)
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12
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59 to 250
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251
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Data rate (kbps)
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0.1
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0.3 to 50
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9.6 (lo-rate), 55.555 (normal), 166.667 (hi-rate)
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Max. transmission power (mW)
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25
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100 (limited by the relevant regulatory limit, default 25 for end devices)
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Limited by the relevant regulatory limit
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Bandwidth (kHz)
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0.1
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125
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25 (lo-rate), 200 (normal, hi-rate)
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Freq. range (MHz)
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868.034 to 868.226 (192 kHz)
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863 to 869.95 (with default center frequencies at 868.1, 868.3, and 868.5 for uplink communication and 869.525 for downlink communication)
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863 to 870 (lo-rate), 863 to 870 with the exception of 868.6 to 868.725, 868.925 to 868.975, 869.175 to 869.425, and 869.625 to 869.75 (normal, hi-rate)
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