CHAPTER 3Configuring the Gateway138Radio parameterFigure 144. Wireless Modem - Radio parameterThe following radio parameters of the Wireless Modem are to beset here:• Code - enter the code by which your Wireless Modem can beaddressed. By default, the code is identical to the serialnumber of the modem;Note: Using the defined code, the A440 can be addressed bymeans of direct commands.• Radio frequency - enter the frequency which is to be used forcommunication between the Wireless Modem and the RTUs;0 CAUTION The A440 transmits within the ISM band, do not changethe frequency of your device without reason: apart from the fact itmay not communicate in the network anymore, you may alsoviolate the applicable radiocommunications laws in your country.Depending on the destination country, some models may alsoreturn an error message.• Radio channel spacing - to enter the spacing (in Hertz) amongthe respective channels; it is usual to work with a channelspacing of 12,5 kHz;• Radio error rate packets - enter the permissible error rates forthe data transmission (minimum and maximum error rate);Note: If the error rate exceeds the permissible range of values, anerror rate notification is sent;• Radio error rates - displays the actual radio error rates of theWireless Modem;
