User's Guide

12 Data Rate Calculations
199
Table 24 – Data Throughput for PTP 500, Link Symmetry = 1:1, Link Optimization = TDM
PTP 500 Full:
15 MHz 10 MHz 5 MHz
Modulation Mode
Tx Rx Both Tx Rx Both Tx Rx Both
64QAM 0.83 Dual 49.56 49.56 99.12 32.78 32.78 65.56 16.79 16.79 33.58
64QAM 0.67 Dual 39.25 39.25 78.50 26.34 26.34 52.68 13.45 13.45 26.90
16QAM 0.75 Dual 29.61 29.61 59.22 19.28 19.28 38.56 10.06 10.06 20.12
16QAM 0.50 Dual 19.31 19.31 38.62 12.85 12.85 25.70 6.72 6.72 13.44
QPSK 0.75 Dual 14.78 14.78 29.56 9.62 9.62 19.24 4.67 4.67 9.34
64QAM 0.83 Single 24.46 24.46 48.92 16.05 16.05 32.10 8.06 8.06 16.12
64QAM 0.67 Single 19.31 19.31 38.62 12.85 12.85 25.70 6.72 6.72 13.44
16QAM 0.75 Single 14.78 14.78 29.56 9.62 9.62 19.24 4.67 4.67 9.34
16QAM 0.50 Single 9.63 9.63 19.26 6.42 6.42 12.84 3.33 3.33 6.66
QPSK 0.75 Single 7.05 7.05 14.10 4.47 4.47 8.94 1.99 1.99 3.98
QPSK 0.50 Single 4.47 4.47 8.94 3.19 3.19 6.38 1.34 1.34 2.68
BPSK 0.50 Single 1.90 1.90 3.80 1.28 1.28 2.56 0.64 0.64 1.28
12.4 Range Adjustment Curves
Use these graphs to look up the link Range and find the Throughput Factor that must be
applied to adjust the 0 km data throughput rates for the required combination of Link Mode
Optimization (IP or TDM) and Link Range (km).
Curve A (Figure 120) is used when one of the following conditions applies:
•
Link Symmetry = 3:1
• Link Symmetry = 1:1 and Link Optimization = IP
• Link Symmetry = 1:3
Curve B (Figure 121) is used only when Link Symmetry = 1:1 and Link Optimization = TDM.