[RC232] Are the RC1140 and RC1240 compatible No. They are not compatible. Last Update: August 8, 2017 July 7, 2017 1744 RC232 Q&A Related Knowledge Base Posts -[RC232] Do you use a CCA/MA that’s in error or drifts like RSSI? What is your proposed solution for this issue?[RC232] For a packet size of 24 Bytes, could you provide an estimate of the ‘on air’ time at data rates of 50 and 100 Kpbs?[RC232] How can I get world-wide coverage in sub-giga frequencies