diff --git a/index.html b/index.html
index 1ce1a3b..91fb29c 100644
--- a/index.html
+++ b/index.html
@@ -338,7 +338,7 @@
             async setRadioParams() {
                 const radioFreq = 917375;
                 const radioBw = 250000;
-                const radioSf = 7;
+                const radioSf = 11;
                 const radioCr = 5;
                 await this.connection.setRadioParams(radioFreq, radioBw, radioSf, radioCr);
             },