ARRL Technician Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the ARRL Technician Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

How does the FCC Part 97 define telemetry?

A two-way communication of device status
A one-way transmission of measurements
A continuous feedback loop of information
A display of received data

The correct answer is: A one-way transmission of measurements

The definition of telemetry according to FCC Part 97 refers specifically to a one-way transmission of measurements that are collected from a remote location or an unattended system. In this context, telemetry is often used in amateur radio to send data related to the status or condition of a device, such as environmental data, equipment performance metrics, or other specific measurements. This one-way nature of telemetry distinguishes it from two-way communication modes like voice or digital modes that involve active interaction between two parties. The focus is on transmitting collected data for monitoring or analysis purposes without necessitating an immediate response from the receiver. Telemetry is valuable in various applications, including remote weather stations and satellite communications, where real-time feedback isn't possible, and it suffices to send data at periodic intervals. Understanding this definition aligns with the practical use of telemetry in amateur radio and reinforces the importance of distinguishing between different modes of communication as outlined in FCC regulations.