diff --git a/templates/register.html b/templates/register.html
index 827ce48c..f774b777 100644
--- a/templates/register.html
+++ b/templates/register.html
@@ -147,9 +147,13 @@ document.addEventListener('DOMContentLoaded', function() {
     uplanetElement.value = '@'; // Default to '0.00' if lon is missing
   }
 
-  const satURL = `https://ipfs.copylaradio.com/ipfs/QmfVZajimvgkCHhybnwVuKuY1aDzGLBsDbnzSXpN7RmfUm/sat_render.html?southWestLat=${latElement.value}&southWestLon=${lonElement.value}&deg=0.1`;
+    // Decalage de - 0.05° = MAP coord SW
+   const latMAP.value = (parseFloat(latElement.value) - 0.05).toFixed(2); // Subtract 0.05 from latElement
+   const lonMAP.value = (parseFloat(lonElement.value) - 0.05).toFixed(2); // Subtract 0.05 from lonElement
+
+  const satURL = `https://ipfs.copylaradio.com/ipfs/QmfVZajimvgkCHhybnwVuKuY1aDzGLBsDbnzSXpN7RmfUm/sat_render.html?southWestLat=${latMAP.value}&southWestLon=${lonMAP.value}&deg=0.1`;
   document.getElementById("satLink").href = satURL;
-  const mapURL = `https://ipfs.copylaradio.com/ipfs/QmRG3ZAiXWvKBccPFbv4eUTZFPMsfXG25PiZQD6N8M8MMM/map_render.html?southWestLat=${latElement.value}&southWestLon=${lonElement.value}&deg=0.1`;
+  const mapURL = `https://ipfs.copylaradio.com/ipfs/QmRG3ZAiXWvKBccPFbv4eUTZFPMsfXG25PiZQD6N8M8MMM/map_render.html?southWestLat=${latMAP.value}&southWestLon=${lonMAP.value}&deg=0.1`;
   document.getElementById("mapLink").href = mapURL;
 
     document.getElementById("LAT").innerHTML = latElement.value ;