Should be in my original docs. Google for "APRS protocol.txt" and hope it comes up? Should also be in the aprs spec...? Bob >>> "Andrew Rich" <vk4tec at tech-software.net> 02/09/06 2:14 AM >>> Ok here it is VK4TEC>APU25N,TCPIP*,qAC,VK4TEC:;LineObj *090707z2731.12S\15255.03El614/013 What is the format of this ?