Weidmuller WI-MOD-945-E: 900Mhz Wireless Ethernet & Device Server v2.16 - Manual (Page 23)

Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-945-E User Manual
Page 23 www.weidmuller.com Rev 2.136
Selecting a 20 MHz channel will give the maximum TCP/IP throughput of around 22 Mbps however if the band width is
reduced (10MHz, 5MHz, etc) the maximum data throughput will also be reduced
For an indication of the data throughput levels used with different channel bandwidths see “WI-MOD-945-E Radio Data
Throughput” table below.
Radio Throughput
Below is a table showing the maximum TCP/IP throughput based on channel selection and receiver signal level.
There are five channel bandwidths (20, 10, 5, 2.5, & 1.25MHz). These throughput estimations are based on perfect radio
conditions, i.e. little to no outside radio interference present while data is being passed and they are calculated using real
life conditions and communication constraints.
Higher data rates are achievable by using an external Iperf arrangement. For more details on this see section 4.4 -
“Throughput Test”.
WI-MOD-945-E Radio Data Throughput
900Mhz Data Rate in Mbps
Signal Strength 20MHz 10MHz 5MHz 2.5MHz 1.25MHz
-72dBm 22.0 11.0 5.5 2.8 1.4
-75dBm 20.0 10.0 5.0 2.5 1.3
-81dBm 17.0 8.5 4.3 2.1 1.1
-84dBm 11.0 5.5 2.8 1.4 0.7
-88dBm 9.0 4.5 2.3 1.1 0.6
-91dBm 6.0 3.0 1.5 0.75 0.38
-90dBm 5.5 2.8 1.4 0.69 0.34
-91dBm 4.5 2.3 1.1 0.56 0.28
-92dBm 3.0 1.5 0.75 0.38 0.19
-91dBm 2.0 1.0 0.5 0.25 0.13
-93dBm 1.0 0.50 0.25 0.13 0.06
-95dBm 0.5 0.25 0.13 0.06 0.03