About CRO Exam Prep

An independent practice platform for the Certified Radio Operator (CRO) exam - real questions across every exam domain, each with a plain-language explanation.

What's on the CRO exam

The Certified Radio Operator (CRO) exam is organized into 23 knowledge domains. It has 50 questions and is completed in 1 hours. Here is what it covers:

• General Responsibilities of a Radio Operator
• Professional Etiquette
• Station Management Structure
• Station Operations
• FCC Rules
• Technical Layout of a Typical Station
• Various Types of Microphones and Their Use
• Digital Audio Mixing Devices
• Audio Processors
• Equalizers
• Electronic Audio Routing
• Computerized Recording and Playback Systems
• Program-Audio Delay Equipment
• Telephone-Interface Equipment
• Studio to Transmitter (STL) Links
• Transmitter Remote Control and Monitoring Methods
• Satellite Program Delivery Systems
• Station Logs
• Emergency Alert System (EAS)
• Safety Requirements
• Meter Reading Procedures
• Station Identification Requirements and Procedures
• Operational Procedures for Trouble Situations

Every practice question on this site is organized across these 23 domains, so your study tracks the real exam structure instead of guesswork. As you answer, the per-domain analytics surface the areas still costing you points, so your review goes where it moves your score.

What we believe good exam prep looks like

Realistic practice beats passive reading. Every question is written to mirror the style and difficulty of the real exam, with a clear explanation of why the right answer is right and the others aren't.

Your weak spots should find you. Domain analytics, mistake review, and re-drilling are built in, so study time goes where it moves your score.

Pricing should be simple. One payment for a fixed access window matched to your exam date. No subscription, no auto-renewal, and 10 free questions to try before you spend anything.

Get in touch

Questions, feedback, or something not working? Email support@boardmentor.study - candidate messages are read and answered.