Honeywell XYR301E, Руководство пользователя

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User Manual XYR301E Wireless Ethernet
34-XY-25-41 Page 79
4.4 Custom Survey
Custom Survey is essentially the same as the Channel Survey (explained in the previous section) except the three
channel utilisations can be turned on or off thus showing the different amount of traffic related data. Percent Radio TX
– Any transmitted messages from the radio to other devices.
Percent Radio RX – Any DSSS messages received by the radio (basically any radio data from either HONEYWELL or
competitor radios).
Percent Busy (CCA or Noise) – Clear Channel Assessment is the detection of any ongoing transmissions or noise, i.e.
Wireless I/O , 900MHz FHSS, Cordless Phones, RC devices, etc.
By configuring the different chart options we can get a clear idea of the amount of data being transmitted, received and
the amount of other noise that can be heard at the radio.
Configure what is to be logged on each chart, select a time interval and save changes and the charts will then be
displayed below the settings. Click the button again to manually redraw the graphs.
Each graph will display a Percent Channel Utilisation using the selected criteria and time interval (Seconds, Minutes or
Hours).
Example One. Chart one shows the amount of data that is being transmitted over a radio link and chart two shows the
amount of data being received from all sources (Interference and other noise). We can see from this that there is very
little outgoing data but you can see a constant stream of data being received.