Motorola PTP 600 System User Manual page 66

6.1.5 2.5 GHz Product Variant - Receive Sensitivity, Link Loss, Output Power and Threshold Vs
Modulation Mode
The equipment capability is given in
and Output Power for PTP 600 Series Bridge in all modulation modes for channel bandwidth
equal to 30 MHz. 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
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
BPSK 0.63 single -97.95
QPSK 0.63 single
-96.29
QPSK 0.87 single
-93.79
16QAM 0.63 single
-91.49
16QAM 0.63 dual
-88.69
16QAM 0.87 single
-86.83
16QAM 0.87 dual
-84.16
64QAM 0.75 single
-84.69
64QAM 0.75 dual
-81.77
64QAM 0.92 single
-80.36
64 QAM 0.92 dual
-77.33
256QAM 0.81 single
-77.92
256QAM 0.81 dual -75.28
Table 10 - 2.5GHz – Receive Sensitivity, Link Loss, Output Power and Threshold Vs
T able 10. This table gives Receive Sensitivity, Link Loss
1 0 2 0 H
E quation 1 needs to be performed to judge whether a particular link can be
1 0 2 1 H
Threshold
Value (dBm)
5 10 15
MHz MHz MHz
-95.25 -91.36
-93.76 -85.17
-90.38 -81.06
-88.25 -79.20
-84.55 -76.21
-83.59 -73.28
-80.29 -70.08
-81.37 -70.38
-77.83 -67.01
-76.93 -68.62
-73.87 -65.19
-74.50 -65.50
-71.24 -62.24
Modulation Mode
Output
Power (dBm)
Channel Bandwidth (MHz)
30 All
MHz Bandwidths MHz
-88.9 +23 158.0
-85.4 +23 151.2
-82.4 +23 148.0
-80.1 +23 145.6
-77.0 +23 143.0
-75.9 +23 140.5
-71.8 +23 137.2
-73.0 +23 137.5
-68.6 +23 134.3
-67.6 +23 135.1
-63.9 +23 132.4
-65.4 +23 132.3
-61.0 +23 129.4
64
Maximum
Link Loss (dB)
5 10 15
MHz MHz MHz
155.3 151.4 150.1
148.9 145.2 144.5
144.5 141.1 140.6
142.4 139.2 138.5
138.9 136.2 135.6
136.5 133.3 132.6
132.6 130.1 129.1
133.6 130.4 129.7
129.4 127.0 126.1
131.7 128.6 130.6
127.6 125.2 124.3
132.4 125.5 124.6
128.1 122.2 120.5
30