diff --git a/encoder/enc_sincos.c b/encoder/enc_sincos.c
index e7ace2c5..6f3e7d8b 100644
--- a/encoder/enc_sincos.c
+++ b/encoder/enc_sincos.c
@@ -32,8 +32,8 @@
 #include <math.h>
 #include <string.h>
 
-#define SINCOS_MIN_AMPLITUDE        1.0         // sqrt(sin^2 + cos^2) has to be larger than this
-#define SINCOS_MAX_AMPLITUDE        1.65        // sqrt(sin^2 + cos^2) has to be smaller than this
+#define SINCOS_MIN_AMPLITUDE        0.7         // sqrt(sin^2 + cos^2) has to be larger than this
+#define SINCOS_MAX_AMPLITUDE        1.3         // sqrt(sin^2 + cos^2) has to be smaller than this
 
 bool enc_sincos_init(ENCSINCOS_config_t *cfg) {
 	memset(&cfg->state, 0, sizeof(ENCSINCOS_state));