@mytec: iter4 ready for test

frontend/public/workers/rf-worker.js

@@ -56,16 +56,24 @@ function calculatePointRSRP(site, point) {
   // Link budget: RSRP = P_tx + G_tx - FSPL
   var rsrp = site.power + site.gain - fspl;
 
-  // Apply sector antenna pattern loss
+  // Apply sector antenna directivity: hard cutoff + gradual pattern loss
   if (site.antennaType === 'sector' && site.azimuth !== undefined) {
     var bearing = calculateBearing(site.lat, site.lon, point.lat, point.lon);
     var relativeAngle = Math.abs(bearing - site.azimuth);
     var normalizedAngle =
       relativeAngle > 180 ? 360 - relativeAngle : relativeAngle;
 
+    var beamwidth = site.beamwidth || 65;
+
+    // Hard cutoff: no signal outside beamwidth
+    if (normalizedAngle > beamwidth / 2) {
+      return -Infinity;
+    }
+
+    // Gradual 3GPP pattern loss within beamwidth
     var patternLoss = calculateSectorPatternLoss(
       normalizedAngle,
-      site.beamwidth || 65
+      beamwidth
     );
     rsrp -= patternLoss;
   }