diff --git a/frequencies.c b/frequencies.c
index 0932d36..7c174c4 100644
--- a/frequencies.c
+++ b/frequencies.c
@@ -126,6 +126,8 @@ uint32_t FREQUENCY_RoundToStep(uint32_t freq, uint16_t step)
 	}
 	if(step == 1)
 		return freq;
+	if(step >= 1000) 
+		step = step/2;
 	return (freq + (step + 1) / 2) / step * step;
 }