[RC232] Are the RC1140 and RC1240 compatible No. They are not compatible. Last Update: August 8, 2017 July 7, 2017 2162 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] Is there an acknowledge message/signal on successful message transmit?[RC232] “We need to cover a LOS of up to 1Km While having the antenna approx only up to 1m above ground level. Can this be achieved with RC2500-RC232 with 1dBm output? “