I have 2 xbee s3b 900mhz modules I use these modules with their adapters. I want to use someone as a receiver and a transmitter.but I cannot make these settings. I cannot set the modules as transceivers.When I look at the s3b bought last year from xctu, I see that a few parameters are missing from the settings section. but everything is complete with the new xbee I bought this year. Can you help me define one of these modules as a receiver and a transmitter?