Update magloop.html

magloop.html

@@ -89,8 +89,10 @@
 
         function updateFrequencies() {
             const hamFrequencies = [
+                //1.6, 2.0, 4.0, 6.0, 8.0
                 1.8, 3.5, 5.0, 7.0, 10.1, 14.0, 18.068, 21.0, 24.89, 28.0
                 //1.8, 2.2, 2.8, 3.5, 5.0, 6.0, 7.0, 8.0, 9.0, 10.1, 12.0, 14.0, 16.0, 18.068, 21.0, 24.89, 28.0
+                //1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20
             ];
             frequencies = [];
             hamFrequencies.forEach(freq => {
@@ -122,6 +124,7 @@
             const rr = (n_turns ** 2.0) * k * (l ** 4.0);
             return rr;
         }
+
         function calculateRadiationResistance() {
             var retval = [];
             frequencies.forEach(freq => {
@@ -168,6 +171,7 @@
 
         const proximityResistance = {
             // From G. S. Smith, "Radiation Efficiency of Electrically Small Multiturn Loop Antennas", IEEE Trans Antennas Propagation, September 1972
+            // 0 - this is the corresponding x-axis value. 1 - single loop adds zero to proximity resistance. Others measured empirically.
             0:[  1.1,  1.15,  1.20,  1.25,  1.30,  1.40,  1.50,  1.60,  1.70,  1.80,  1.90,  2.00,  2.20,  2.40,  2.50,  2.60,  2.80,  3.00,  3.50,  4.00],
             1:[0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000],
             2:[0.299, 0.284, 0.268, 0.254, 0.240, 0.214, 0.191, 0.173, 0.155, 0.141, 0.128, 0.116, 0.098, 0.032, 0.077, 0.071, 0.061, 0.054, 0.040, 0.031],
@@ -224,6 +228,7 @@
                 const R_ohmic = lossResistance(freq);
                 const R_rad = radiationResistance(freq);
                 const efficiency = 100.0 / (1.0 + (R_ohmic / R_rad));
+                //const efficiency = 10.0 * Math.log10(1.0 / (1.0 + (R_ohmic / R_rad))); // for Efficiency in dB
                 retval.push({x:freq, y:efficiency});
             });
             return retval;
@@ -341,7 +346,7 @@
         */
 
         const chartCanvasContext = document.getElementById("chartCanvas").getContext('2d');
-        console.log(chartCanvasContext);
+        // console.log(chartCanvasContext);
 
         var myChart = new Chart(chartCanvasContext, {
             type: 'line',