diff --git a/rfg_adc_plotter/constants.py b/rfg_adc_plotter/constants.py
index e3f937c..79345c5 100644
--- a/rfg_adc_plotter/constants.py
+++ b/rfg_adc_plotter/constants.py
@@ -5,7 +5,7 @@ FFT_LEN = 2048
 BACKGROUND_MEDIAN_SWEEPS = 64
 
 SWEEP_FREQ_MIN_GHZ = 3.3
-SWEEP_FREQ_MAX_GHZ = 14.3
+SWEEP_FREQ_MAX_GHZ = 6.3
 
 LOG_BASE = 10.0
 LOG_SCALER = 0.001