[RC232] Are the RC1140 and RC1240 compatible No. They are not compatible. Last Update: August 8, 2017 July 7, 2017 1885 RC232 Q&A Related Knowledge Base Posts -[RC232] Do your radios have any kind of Listen Before Talk feature ?[RC232] “Non-volatile memory contains the module name and version (e.g. “”RC1240,2.60,2.34″”) starting at offset 0x3C. The manuals don’t mention it, is this string present in all modules at the same address, and can we use it to identify the module? “[RC232] The RF module RC1180-RC232. Is there a MSL-level on this product?