From 75cb075f8d51400afac1944ad0fe509102b0aee9 Mon Sep 17 00:00:00 2001 From: miguel <31931809+miguelvaca@users.noreply.github.com> Date: Sun, 23 Apr 2023 21:04:41 +1000 Subject: [PATCH] Update to V9 Support VHF (2m) and UHF (70cm) --- magloop.html | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/magloop.html b/magloop.html index d26d825..667caee 100644 --- a/magloop.html +++ b/magloop.html @@ -7,7 +7,7 @@ -
Miguel VK3CPU - Magloop Antenna Calculator V8
+
Miguel VK3CPU - Magloop Antenna Calculator V9
@@ -21,7 +21,7 @@
- +
@@ -134,6 +134,9 @@ [2]: A. Boswell, A. J. Tyler and A. White, "Performance of a Small Loop Antenna in the 3 - 10 MHz Band" , IEEE Antennas and Propagation Magazine, 47, 2, April 2005, pp. 5 1 -56.

Change history:
+ [23-Apr-23] - V9
+ * Changed the frequency list to include VHF (2m) and UHF (70cm) bands.
+ * Reduced minimum loop diameter to 4 cm.
[12-Feb-22] - V8
* Changed the frequency list to include top and bottom frequencies of each band. This is to highlight the range of capacitance required between the top and bottom of each band.
* Increased max c/a ratio from 10 to 30.
@@ -233,7 +236,8 @@ function updateFrequencies() { const hamFrequencies = [ - 0.1357, 0.1378, 0.472, 0.479, 1.8, 1.875, 3.5, 3.8, 5.3, 5.4, 7.0, 7.3, 10.1, 10.15, 14.0, 14.35, 18.068, 18.168, 21.0, 21.45, 24.89, 24.99, 28.0, 29.7, 35.0, 40.0, 45.0, 50.0, 52.0, 54.0, 55.0, 60.0, 65.0, 69.9, 70.5 + 0.1357, 0.1378, 0.472, 0.479, 1.8, 1.875, 3.5, 3.8, 5.3, 5.4, 7.0, 7.3, 10.1, 10.15, 14.0, 14.35, 18.068, 18.168, 21.0, 21.45, 24.89, 24.99, 28.0, 29.7, 35.0, 40.0, 45.0, 50.0, 52.0, 54.0, 55.0, 60.0, 65.0, 69.9, 70.5, 80.0, 90.0, + 100.0, 110.0, 120.0, 130.0, 140.0, 144.0, 146.0, 148.0, 150.0, 160.0, 170.0, 180.0, 190.0, 200.0, 210.0, 219.0, 222.0, 225.0, 230.0, 240.0, 250.0, 275.0, 300.0, 325.0, 350.0, 375.0, 400.0, 420.0, 430.0, 440.0, 450.0 ]; frequencies = []; @@ -1793,7 +1797,8 @@ callbacks: { title: function(context) { var value = context[0].parsed.x; - var lut = {0.1357:'2200', 0.1378:'2200', 0.472:'600', 0.479:'600', 1.8:'160', 1.875:'160', 3.5:'80', 3.8:'80', 5.3:'60', 5.4:'60', 7.0:'40', 7.3:'40', 10.1:'30', 10.15:'30', 14.0:'20', 14.35:'20', 18.068:'18', 18.168:'18', 21.0:'15', 21.45:'15', 24.89:'12', 24.99:'12', 28.0:'10', 29.7:'10', 35.0:'', 40.0:'', 45.0:'', 50.0:'6', 52.0:'6', 54.0:'6', 69.9:'4', 70.5:'4'}; + var lut = {0.1357:'2200', 0.1378:'2200', 0.472:'600', 0.479:'600', 1.8:'160', 1.875:'160', 3.5:'80', 3.8:'80', 5.3:'60', 5.4:'60', 7.0:'40', 7.3:'40', 10.1:'30', 10.15:'30', 14.0:'20', 14.35:'20', 18.068:'18', 18.168:'18', 21.0:'15', 21.45:'15', + 24.89:'12', 24.99:'12', 28.0:'10', 29.7:'10', 35.0:'', 40.0:'', 45.0:'', 50.0:'6', 52.0:'6', 54.0:'6', 69.9:'4', 70.5:'4', 144.0:'2', 146.0:'2', 148.0:'2', 420.0:'0.7', 430.0:'0.7', 440.0:'0.7', 450.0:'0.7'}; var label = '' + value.toPrecision(4).toString() + ' MHz'; if(lut[value]) { label += ' (';