>Does your radio link has any minimum requirements for >bit rate or can you send long ones and zero's ? Well in this case because the data is coming from an RS232 source then there will be a 1 to 0 transition in the data for every 10 bits, you are guaranteed that there will be at least one 1 bit and one 0 bit every 10. This should remove most synchronizing problems. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu