Data Rate Calculations; Bpsk 0.50 Single Payload - Motorola PTP 300 series User Manual

14 Data Rate Calculations

To aid the calculation of data rate throughput (end to end ethernet throughput assuming 1500
octet ethernet frames), the following plots of throughput verses link range have been produced
for all the PTP 300 Series modulation modes, assuming the units are connected using 100 Mbps
Ethernet. Please note that only 15 MHz channel bandwidth has been considered and the plots are
the same for IP or TDM modes (High priority traffic), although there is a small difference between
the two modes' rates because there is fragmentation in TDM (for low priority traffic) which causes
the throughput to be reduced buy approximately 1% compared to the IP mode.
Aggregate data rate capacity can be calculated using four key system parameters:
Receive modulation mode
Transmit modulation mode
Range Between the two wireless units
Wireless link mode (IP or TDM)
Using these parameters the aggregate data rates can be looked up using the plots
Figure
through
Data Rate Calculations
122.
Figure 110 BPSK 0.50 Single Payload
156
Figure 110