Launch Monitor Placement Guide · Doppler radar

Blue Tees Rainmaker: Room Requirements & Exact Placement

Blue Tees · Doppler radar · typical price $749 · Updated June 2026

The Blue Tees Rainmaker is a Doppler-radar unit that sits on the floor 6–8 ft behind the ball, looking down the line of flight. Add the recommended 8–10 ft of ball-to-screen distance and you arrive at the manufacturer's 15–18 ft room-depth recommendation (19 ft is a realistic working minimum with a buffer behind the unit). Keep metal pipes, frames, and rotating fans out of the radar's view — they add noise to spin readings.

Placement at a glance

Mounting
Floor · behind the ball (Doppler radar)
Ball → monitor
6–8 ft
Ball → screen
8–10 ft
Recommended room depth
15–18 ft
RCT balls
Not supported

Frequently asked questions

How far behind the ball does the Blue Tees Rainmaker sit?

6 to 8 feet behind the ball, aligned with the target line, with the ball 8–10 feet from the impact screen.

What room size do I need for the Blue Tees Rainmaker?

Plan on 15–18 feet of room depth: ball-to-screen plus the radar's space behind the ball. Ceiling and width depend on your height and swing — check the free room calculator.

Does the Blue Tees Rainmaker work indoors?

Yes — it's designed for sim use at these distances, though indoor spin on short flights is calculated rather than fully measured on some shots.

Other radar (behind-ball) monitors