Rate Profiles

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Rate profiles define the relationship between stick position and aircraft rotation speed.

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Rate Profile Types

Fidelity X supports multiple rate profiles:

Type	Characteristics
Betaflight Rate	Compatible with Betaflight, easy migration
Actual Rate	More intuitive, directly set max angular rate

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Betaflight Rate

Parameters

Parameter	Description	Range
RC Rate	Base rate	0.1 - 3.0
Super Rate	Stick endpoint gain	0.0 - 1.0
Expo	Center zone curve	0.0 - 1.0

Parameter Effects

• RC Rate: Affects overall response, especially center zone
• Super Rate: Affects max speed at stick endpoints
• Expo: Reduces center zone sensitivity

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Actual Rate

Parameters

Parameter	Description	Range
Center Sensitivity	Center sensitivity (°/s)	50 - 500
Max Rate	Max angular rate (°/s)	200 - 2000
Expo	Curve exponent	0.0 - 1.0

Advantages

• More intuitive
• Directly set max angular rate
• Independently adjust center sensitivity

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Recommended Settings

Betaflight Rate

Beginner

Parameter	Roll	Pitch	Yaw
RC Rate	0.7	0.7	0.7
Super Rate	0.5	0.5	0.5
Expo	0.3	0.3	0.0

Intermediate

Parameter	Roll	Pitch	Yaw
RC Rate	1.0	1.0	1.0
Super Rate	0.7	0.7	0.7
Expo	0.2	0.2	0.0

Advanced

Parameter	Roll	Pitch	Yaw
RC Rate	1.2	1.2	1.0
Super Rate	0.8	0.8	0.7
Expo	0.1	0.1	0.0

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Tuning Tips

Center Too Sensitive

Increase Expo:

param set ROLL_RC_EXPO 0.3
param set PITCH_RC_EXPO 0.3
param save

Not Enough Roll Speed

Increase Super Rate:

param set ROLL_SUPER_RATE 0.8
param save

Yaw Twitching

Reduce Yaw rate:

param set YAW_RC_RATE 0.8
param save

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Migrating from Betaflight

If you’re migrating from Betaflight, you can use the same rate settings directly:

1. Select Betaflight Rate type
2. Enter your RC Rate, Super Rate, Expo values from Betaflight
3. Save settings