Launch Monitor Basics and Types

The launch monitor is the brain of your golf simulator. It tracks what happens when club meets ball and translates that into data your software can use. Choosing the right launch monitor involves understanding two fundamental technology types (radar and photometric), accuracy tiers (entry, mid, professional), and how your room constraints affect compatibility.

This decision typically consumes 40–60% of your total simulator budget for good reason: better data leads to better feedback, which leads to faster improvement. But accuracy alone doesn’t determine the right choice: room depth, budget, and whether you need club data all play major roles.

If You Only Remember 3 Things

1. Radar needs depth; photometric works in tight spaces
   Radar systems sit behind the golfer and require ball flight. Camera-based systems sit beside or above the ball and work well in shallow rooms.

2. Club data requires cameras (or hybrids)
   Radar-only systems primarily track ball data. Swing path, face angle, and impact metrics come from cameras.

3. Accuracy tiers should match your goals
   Entry-level is fine for casual play. Serious practice and improvement require mid-tier or better accuracy.

Radar Systems

Track ball flight using Doppler radar by following the ball over distance. These systems are typically positioned behind the golfer and require more room depth to perform accurately.

How they work:
Radar systems emit radio waves and analyze the Doppler shift as the ball travels away from the unit. By tracking the ball over a longer portion of its flight, the system calculates ball speed, launch angle, spin, and shot shape.

Best for:

• Larger rooms with sufficient depth (often 15–20'+ total)
• Outdoor use or commercial bays
• Players focused primarily on ball flight data
• Situations where behind-the-ball placement is preferred

Limitations:

• Require significant room depth behind the ball
• Limited or estimated club data on many models
• Accuracy can suffer in short or enclosed spaces
• Some models require marked balls for reliable spin measurement

Photometric (Camera-Based) Systems

Use high-speed cameras to capture the ball and club at impact. These systems are positioned next to the ball or overhead, making them ideal for short or shallow rooms.

How they work:
High-speed cameras capture thousands of images per second at and immediately after impact. Software analyzes these images to calculate ball speed, launch angle, spin, club speed, club path, face angle, and impact location.

Best for:

• Tight or shallow rooms where depth is limited
• Instruction and coaching (club data is critical)
• Serious practice focused on swing mechanics
• Home simulators with ceiling- or side-mounted setups

Limitations:

• Require consistent, adequate lighting
• Smaller hitting area sweet spot on some models
• Generally higher cost than entry-level radar systems

Hybrid Systems

Some modern launch monitors combine radar and camera technology, aiming to deliver accurate ball flight data along with detailed club metrics.

These systems typically use radar to assist with ball tracking and cameras for club and impact data. They can work in shorter spaces than pure radar systems while offering more complete data than radar alone.

Hybrid systems are often positioned as premium or upper mid-tier options.

Accuracy Tiers

Entry-level:
Good for casual play and entertainment. Reliable basic ball data, limited or no club metrics. Typical accuracy is ±2–3% on distance.

Mid-tier:
Suitable for serious practice and improvement. Ball and club data on most systems. Typical accuracy is ±1–2% on distance.

Professional:
Tour-level precision with comprehensive club and impact data. Used for fitting, coaching, and elite training. Accuracy is typically within ±1% across all metrics.

Decision Checklist

Before choosing a launch monitor:

• [ ] Measure total room depth (critical for radar systems)
• [ ] Measure ceiling height (important for overhead systems and full swings)
• [ ] Decide if you need club data (instruction vs ball flight only)
• [ ] Set your launch monitor budget (typically 40–60% of total)
• [ ] Check software compatibility with your preferred platform
• [ ] Verify lighting requirements for camera-based systems
• [ ] Research return policies (test before committing if possible)

Common Mistakes

Mistake: Choosing radar for a short room
Why it matters: Radar systems need ball flight distance to measure accurately
How to avoid: If your room is under ~15' deep, prioritize photometric or hybrid systems

Mistake: Expecting radar to provide detailed club data
Why it matters: Swing path, face angle, and impact metrics require cameras
How to avoid: If swing improvement is your goal, choose photometric or hybrid

Mistake: Ignoring lighting requirements
Why it matters: Camera systems rely on consistent lighting to track accurately
How to avoid: Budget for proper LED lighting when choosing a camera-based system

How This Affects Your Build

Your launch monitor choice directly impacts room depth, ceiling height, and total budget. Radar systems demand more space but excel at tracking full ball flight. Photometric systems thrive in tight rooms and provide the club data needed for real swing improvement.

Use the Builder tool to match launch monitor options to your exact space and goals.