diff --git a/where_fi/config/models.py b/where_fi/config/models.py
index eaa937c..f3f11d2 100644
--- a/where_fi/config/models.py
+++ b/where_fi/config/models.py
@@ -17,6 +17,7 @@ class Preprocessing(BaseModel):
             return (self.lowcut, self.highcut)
 
     bandpass: Bandpass
+    subcarrier_step: int
 
 
 class MUSIC(BaseModel):
@@ -67,8 +68,8 @@ class Config(BaseModel):
     @property
     def delta_f(self) -> int:
         if self.frame_format == "HESU":
-            return 78_125
-        return 312_500
+            return 78_125 * self.preprocessing.subcarrier_step
+        return 312_500 * self.preprocessing.subcarrier_step
 
     @model_validator(mode="after")
     def channels(self) -> Self:
diff --git a/where_fi/processing/preprocess.py b/where_fi/processing/preprocess.py
index 01c4718..877fda5 100644
--- a/where_fi/processing/preprocess.py
+++ b/where_fi/processing/preprocess.py
@@ -34,8 +34,8 @@ class Preprocessor:
             h,
         )
 
-        # Skip every other subcarrier
-        # h_hat = h_hat[::2, :, :]
+        # Skip subcarrierss per config
+        h_hat = h_hat[:: config.preprocessing.subcarrier_step, :, :]
         # logger.info(f"CSI shape: {h_hat.shape}")
 
         h_hat = np.multiply(h_hat, h_hat.conj() / abs(h_hat.conj()))