diff --git a/magloop.html b/magloop.html
index 8d68139..c3fd5f7 100644
--- a/magloop.html
+++ b/magloop.html
@@ -29,7 +29,7 @@
                 </div>
                 <div class="sliders">
                     <label for="loop_spacing_slider">c/a:</label>
-                    <input type="range" id="loop_spacing_slider" min="1.1" max="10.0" value="2.0" step="0.01">
+                    <input type="range" id="loop_spacing_slider" min="1.1" max="30.0" value="2.0" step="0.01">
                 </div>
                 <div class="sliders">
                     <label for="transmit_power_slider">Tx:</label>