>I would really appreciate a basic definition of telemetry.
tele - transport across some space or distance
metry - quantifiable measurements
So telemetry is the ability to broadcast and monitor some form of measurement
across some distance. For example, being able to monitor from the pits the
RPMs on a race car anywhere on the course, or sitting in Houston monitoring
the status (speed, altitude, etc.) of a spacecraft in orbit.
This typically takes two parts. First, the object being monitored has some
device capable of broadcasting the desired information, either continuously or
on demand. Second, a receiver must be used to receive the signal and make
sense of it.