diff --git a/html/saraR4.html b/html/saraR4.html
index 5954459..b241061 100755
--- a/html/saraR4.html
+++ b/html/saraR4.html
@@ -818,7 +818,7 @@ function getSignalInfo(port, timeout) {
         const signalPower = parseInt(csqMatch[1]);
         const qual = parseInt(csqMatch[2]);
 
-        // Determine signal quality and color
+        // Determine signal quality and color (matching Python thresholds)
         let signalDesc, signalColor, signalIcon, alertClass;
 
         if (signalPower === 99) {
@@ -831,22 +831,17 @@ function getSignalInfo(port, timeout) {
           signalColor = '#dc3545';
           signalIcon = '🔴';
           alertClass = 'alert-danger';
-        } else if (signalPower <= 9) {
+        } else if (signalPower <= 24) {
           signalDesc = 'Poor';
           signalColor = '#fd7e14';
           signalIcon = '🟠';
           alertClass = 'alert-warning';
-        } else if (signalPower <= 14) {
-          signalDesc = 'Fair';
+        } else if (signalPower <= 26) {
+          signalDesc = 'Good';
           signalColor = '#ffc107';
           signalIcon = '🟡';
           alertClass = 'alert-warning';
-        } else if (signalPower <= 19) {
-          signalDesc = 'Good';
-          signalColor = '#20c997';
-          signalIcon = '🟢';
-          alertClass = 'alert-success';
-        } else if (signalPower <= 25) {
+        } else if (signalPower <= 28) {
           signalDesc = 'Very good';
           signalColor = '#198754';
           signalIcon = '🟢';
@@ -866,14 +861,14 @@ function getSignalInfo(port, timeout) {
         // Calculate approximate dBm (for RSSI: -113 + 2*signalPower)
         let rssiDbm = signalPower !== 99 ? (-113 + 2 * signalPower) + ' dBm' : 'N/A';
 
-        // Signal bars visualization (1-5 bars based on signal power)
+        // Signal bars visualization (1-5 bars based on signal power, matching thresholds)
         let bars = 0;
         if (signalPower !== 99) {
-          if (signalPower >= 25) bars = 5;
-          else if (signalPower >= 19) bars = 4;
-          else if (signalPower >= 14) bars = 3;
-          else if (signalPower >= 9) bars = 2;
-          else if (signalPower >= 1) bars = 1;
+          if (signalPower >= 29) bars = 5;       // Excellent / Very Strong
+          else if (signalPower >= 27) bars = 4;  // Very good
+          else if (signalPower >= 25) bars = 3;  // Good
+          else if (signalPower >= 10) bars = 2;  // Poor (mid)
+          else if (signalPower >= 1) bars = 1;   // Poor (low)
         }
 
         const barsHtml = `