Motorola MotoWI4 PTP 600 Series - Manual (Page 51)

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6.1.4 Aggregate Ethernet throughput rate v maximum link loss
The equipment capability is given in Table 7 and Table 8. These tables give the Ethernet
throughput rate versus link loss for PTP 600 Series Bridge in all modes. Adaptive modulation
will ensure that the highest throughput that can be achieved instantaneously will be obtained
taking account of propagation and interference. The calculation of Equation 1 needs to be
performed to judge whether a particular link can be installed. When the link has been
installed, web pages provide information about the link loss currently measured by the
equipment both instantaneously and averaged. The averaged value will require maximum
seasonal fading to be added, and then the radio reliability of the link can be computed.
Modulation Mode /
Payload Type
Maximum
Aggregate
Data Rate
8 9
(Mbit/s)
Threshold
Value
(dBm)
Output
Power
(dBm)
Maximum Link
Loss
(dB)
256QAM 0.81 dual 300.2 -61.0 +18 126.0
64QAM 0.92 dual 252.9 -63.9 +18 128.8
64QAM 0.75 dual 206.7 -68.6 +18 133.6
16QAM 0.87 dual 160.8 -71.8 +20 138.8
16QAM 0.63 dual 115.6 -77.0 +22 146.0
16QAM 0.63 single 57.8 -80.1 +22 149.1
QPSK 0.87 single 40.2 -82.4 +23 152.4
QPSK 0.63 single 28.9 -85.9 +24 156.9
BPSK 0.63 single 14.4 -88.9 +25 160.9
256QAM 0.81 single 150.1 -65.4 +18 130.4
64QAM 0.92 single 126.4 -67.6 +18 132.6
64QAM 0.75 single 103.3 -73.0 +18 138.0
16QAM 0.87 single 80.4 -75.9 +20 142.9
Table 7 - 5.4GHz Aggregate Ethernet throughput rate versus maximum link loss
8
Aggregate data rate in 40:40 mode for a 1km link length
9
Data rates for PTP 600 Series Bridge Lite product are 50% of the figures shown