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 _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb