[amsat-bb] Doppler Curves ?

hi guys,   in the "olden days" a satellites TCA could be determined by using pencil and graph paper and plotting time v frequency.   Is there a modern and more elegant way of doing it with signal anaysis software like Spectravue, Spectran or similar. Need it for an education outreach project and I just know that graph paper and pencils will not be cool.   73 John G7HIA