diff --git a/Controls/PropagationSettings.cs b/Controls/PropagationSettings.cs
index 9a482c86bc..c7e101eefa 100644
--- a/Controls/PropagationSettings.cs
+++ b/Controls/PropagationSettings.cs
@@ -34,6 +34,7 @@ public class PropagationSettings : Form
         private Label label1;
         private CheckBox chk_setalt;
         private Label label3;
+        private CheckBox chk_showscale;
         private CheckBox chk_ele;
 
         public PropagationSettings()
@@ -52,6 +53,8 @@ public PropagationSettings()
             NUM_min.Value = (decimal)Settings.Instance.GetFloat("Propagation_Minalt", 100.0f);
             NUM_max.Value = (decimal)Settings.Instance.GetFloat("Propagation_Maxalt", 400.0f);
 
+            chk_showscale.Checked = Maps.Propagation.showScale;
+
             chk_ele.Checked = Maps.Propagation.ele_run;
             chk_terrain.Checked = Maps.Propagation.ter_run;
             chk_rf.Checked = Maps.Propagation.rf_run;
@@ -69,15 +72,17 @@ private void InitializeComponent()
             this.chk_dronedist = new System.Windows.Forms.CheckBox();
             this.chk_homedist = new System.Windows.Forms.CheckBox();
             this.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.chk_showscale = new System.Windows.Forms.CheckBox();
+            this.label3 = new System.Windows.Forms.Label();
             this.NUM_max = new System.Windows.Forms.NumericUpDown();
-            this.label2 = new System.Windows.Forms.Label();
-            this.NUM_min = new System.Windows.Forms.NumericUpDown();
-            this.label1 = new System.Windows.Forms.Label();
             this.label91 = new System.Windows.Forms.Label();
+            this.label2 = new System.Windows.Forms.Label();
             this.label89 = new System.Windows.Forms.Label();
             this.Clearance = new System.Windows.Forms.NumericUpDown();
+            this.NUM_min = new System.Windows.Forms.NumericUpDown();
             this.label100 = new System.Windows.Forms.Label();
             this.label113 = new System.Windows.Forms.Label();
+            this.label1 = new System.Windows.Forms.Label();
             this.label109 = new System.Windows.Forms.Label();
             this.CMB_Rotational = new System.Windows.Forms.ComboBox();
             this.label90 = new System.Windows.Forms.Label();
@@ -91,63 +96,63 @@ private void InitializeComponent()
             this.label114 = new System.Windows.Forms.Label();
             this.Tolerance = new System.Windows.Forms.NumericUpDown();
             this.chk_setalt = new System.Windows.Forms.CheckBox();
-            this.label3 = new System.Windows.Forms.Label();
             this.groupBox1.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)(this.NUM_max)).BeginInit();
-            ((System.ComponentModel.ISupportInitialize)(this.NUM_min)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.Clearance)).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)(this.NUM_min)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.NUM_range)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.NUM_height)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.Tolerance)).BeginInit();
             this.SuspendLayout();
-            // 
+            //
             // chk_ele
-            // 
+            //
             resources.ApplyResources(this.chk_ele, "chk_ele");
             this.chk_ele.Checked = true;
             this.chk_ele.CheckState = System.Windows.Forms.CheckState.Indeterminate;
             this.chk_ele.Name = "chk_ele";
             this.chk_ele.UseVisualStyleBackColor = true;
             this.chk_ele.CheckedChanged += new System.EventHandler(this.chk_ele_CheckedChanged);
-            // 
+            //
             // chk_terrain
-            // 
+            //
             resources.ApplyResources(this.chk_terrain, "chk_terrain");
             this.chk_terrain.Checked = true;
             this.chk_terrain.CheckState = System.Windows.Forms.CheckState.Indeterminate;
             this.chk_terrain.Name = "chk_terrain";
             this.chk_terrain.UseVisualStyleBackColor = true;
             this.chk_terrain.CheckedChanged += new System.EventHandler(this.chk_terrain_CheckedChanged);
-            // 
+            //
             // chk_rf
-            // 
+            //
             resources.ApplyResources(this.chk_rf, "chk_rf");
             this.chk_rf.Checked = true;
             this.chk_rf.CheckState = System.Windows.Forms.CheckState.Indeterminate;
             this.chk_rf.Name = "chk_rf";
             this.chk_rf.UseVisualStyleBackColor = true;
             this.chk_rf.CheckedChanged += new System.EventHandler(this.chk_rf_CheckedChanged);
-            // 
+            //
             // chk_dronedist
-            // 
+            //
             resources.ApplyResources(this.chk_dronedist, "chk_dronedist");
             this.chk_dronedist.Checked = true;
             this.chk_dronedist.CheckState = System.Windows.Forms.CheckState.Indeterminate;
             this.chk_dronedist.Name = "chk_dronedist";
             this.chk_dronedist.UseVisualStyleBackColor = true;
             this.chk_dronedist.CheckedChanged += new System.EventHandler(this.chk_dronedist_CheckedChanged);
-            // 
+            //
             // chk_homedist
-            // 
+            //
             resources.ApplyResources(this.chk_homedist, "chk_homedist");
             this.chk_homedist.Checked = true;
             this.chk_homedist.CheckState = System.Windows.Forms.CheckState.Indeterminate;
             this.chk_homedist.Name = "chk_homedist";
             this.chk_homedist.UseVisualStyleBackColor = true;
             this.chk_homedist.CheckedChanged += new System.EventHandler(this.chk_homedist_CheckedChanged);
-            // 
+            //
             // groupBox1
-            // 
+            //
+            this.groupBox1.Controls.Add(this.chk_showscale);
             this.groupBox1.Controls.Add(this.label3);
             this.groupBox1.Controls.Add(this.NUM_max);
             this.groupBox1.Controls.Add(this.label91);
@@ -173,9 +178,23 @@ private void InitializeComponent()
             resources.ApplyResources(this.groupBox1, "groupBox1");
             this.groupBox1.Name = "groupBox1";
             this.groupBox1.TabStop = false;
-            // 
+            //
+            // cb_showscale
+            //
+            resources.ApplyResources(this.chk_showscale, "cb_showscale");
+            this.chk_showscale.Checked = true;
+            this.chk_showscale.CheckState = System.Windows.Forms.CheckState.Indeterminate;
+            this.chk_showscale.Name = "cb_showscale";
+            this.chk_showscale.UseVisualStyleBackColor = true;
+            this.chk_showscale.CheckedChanged += new System.EventHandler(this.chk_showscale_CheckedChanged);
+            //
+            // label3
+            //
+            resources.ApplyResources(this.label3, "label3");
+            this.label3.Name = "label3";
+            //
             // NUM_max
-            // 
+            //
             this.NUM_max.DecimalPlaces = 1;
             this.NUM_max.Increment = new decimal(new int[] {
             1,
@@ -190,46 +209,24 @@ private void InitializeComponent()
             0});
             this.NUM_max.Name = "NUM_max";
             this.NUM_max.ValueChanged += new System.EventHandler(this.NUM_max_ValueChanged);
-            // 
-            // label2
-            // 
-            resources.ApplyResources(this.label2, "label2");
-            this.label2.Name = "label2";
-            // 
-            // NUM_min
-            // 
-            this.NUM_min.DecimalPlaces = 1;
-            this.NUM_min.Increment = new decimal(new int[] {
-            1,
-            0,
-            0,
-            65536});
-            resources.ApplyResources(this.NUM_min, "NUM_min");
-            this.NUM_min.Maximum = new decimal(new int[] {
-            2000,
-            0,
-            0,
-            0});
-            this.NUM_min.Name = "NUM_min";
-            this.NUM_min.ValueChanged += new System.EventHandler(this.NUM_min_ValueChanged);
-            // 
-            // label1
-            // 
-            resources.ApplyResources(this.label1, "label1");
-            this.label1.Name = "label1";
-            // 
+            //
             // label91
-            // 
+            //
             resources.ApplyResources(this.label91, "label91");
             this.label91.Name = "label91";
-            // 
+            //
+            // label2
+            //
+            resources.ApplyResources(this.label2, "label2");
+            this.label2.Name = "label2";
+            //
             // label89
-            // 
+            //
             resources.ApplyResources(this.label89, "label89");
             this.label89.Name = "label89";
-            // 
+            //
             // Clearance
-            // 
+            //
             this.Clearance.DecimalPlaces = 1;
             this.Clearance.Increment = new decimal(new int[] {
             1,
@@ -244,24 +241,46 @@ private void InitializeComponent()
             0});
             this.Clearance.Name = "Clearance";
             this.Clearance.ValueChanged += new System.EventHandler(this.Clearance_ValueChanged);
-            // 
+            //
+            // NUM_min
+            //
+            this.NUM_min.DecimalPlaces = 1;
+            this.NUM_min.Increment = new decimal(new int[] {
+            1,
+            0,
+            0,
+            65536});
+            resources.ApplyResources(this.NUM_min, "NUM_min");
+            this.NUM_min.Maximum = new decimal(new int[] {
+            2000,
+            0,
+            0,
+            0});
+            this.NUM_min.Name = "NUM_min";
+            this.NUM_min.ValueChanged += new System.EventHandler(this.NUM_min_ValueChanged);
+            //
             // label100
-            // 
+            //
             resources.ApplyResources(this.label100, "label100");
             this.label100.Name = "label100";
-            // 
+            //
             // label113
-            // 
+            //
             resources.ApplyResources(this.label113, "label113");
             this.label113.Name = "label113";
-            // 
+            //
+            // label1
+            //
+            resources.ApplyResources(this.label1, "label1");
+            this.label1.Name = "label1";
+            //
             // label109
-            // 
+            //
             resources.ApplyResources(this.label109, "label109");
             this.label109.Name = "label109";
-            // 
+            //
             // CMB_Rotational
-            // 
+            //
             this.CMB_Rotational.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
             this.CMB_Rotational.FormattingEnabled = true;
             this.CMB_Rotational.Items.AddRange(new object[] {
@@ -273,14 +292,14 @@ private void InitializeComponent()
             resources.ApplyResources(this.CMB_Rotational, "CMB_Rotational");
             this.CMB_Rotational.Name = "CMB_Rotational";
             this.CMB_Rotational.SelectedIndexChanged += new System.EventHandler(this.CMB_Rotational_SelectedIndexChanged);
-            // 
+            //
             // label90
-            // 
+            //
             resources.ApplyResources(this.label90, "label90");
             this.label90.Name = "label90";
-            // 
+            //
             // CMB_Resolution
-            // 
+            //
             this.CMB_Resolution.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
             this.CMB_Resolution.FormattingEnabled = true;
             this.CMB_Resolution.Items.AddRange(new object[] {
@@ -292,14 +311,14 @@ private void InitializeComponent()
             resources.ApplyResources(this.CMB_Resolution, "CMB_Resolution");
             this.CMB_Resolution.Name = "CMB_Resolution";
             this.CMB_Resolution.SelectedIndexChanged += new System.EventHandler(this.CMB_Resolution_SelectedIndexChanged);
-            // 
+            //
             // label110
-            // 
+            //
             resources.ApplyResources(this.label110, "label110");
             this.label110.Name = "label110";
-            // 
+            //
             // CMB_Angular
-            // 
+            //
             this.CMB_Angular.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
             this.CMB_Angular.FormattingEnabled = true;
             this.CMB_Angular.Items.AddRange(new object[] {
@@ -311,14 +330,14 @@ private void InitializeComponent()
             resources.ApplyResources(this.CMB_Angular, "CMB_Angular");
             this.CMB_Angular.Name = "CMB_Angular";
             this.CMB_Angular.SelectedIndexChanged += new System.EventHandler(this.CMB_Angular_SelectedIndexChanged);
-            // 
+            //
             // label111
-            // 
+            //
             resources.ApplyResources(this.label111, "label111");
             this.label111.Name = "label111";
-            // 
+            //
             // NUM_range
-            // 
+            //
             this.NUM_range.DecimalPlaces = 1;
             this.NUM_range.Increment = new decimal(new int[] {
             1,
@@ -333,14 +352,14 @@ private void InitializeComponent()
             0});
             this.NUM_range.Name = "NUM_range";
             this.NUM_range.ValueChanged += new System.EventHandler(this.NUM_range_ValueChanged);
-            // 
+            //
             // label112
-            // 
+            //
             resources.ApplyResources(this.label112, "label112");
             this.label112.Name = "label112";
-            // 
+            //
             // NUM_height
-            // 
+            //
             this.NUM_height.DecimalPlaces = 1;
             this.NUM_height.Increment = new decimal(new int[] {
             1,
@@ -355,14 +374,14 @@ private void InitializeComponent()
             0});
             this.NUM_height.Name = "NUM_height";
             this.NUM_height.ValueChanged += new System.EventHandler(this.NUM_height_ValueChanged);
-            // 
+            //
             // label114
-            // 
+            //
             resources.ApplyResources(this.label114, "label114");
             this.label114.Name = "label114";
-            // 
+            //
             // Tolerance
-            // 
+            //
             this.Tolerance.DecimalPlaces = 1;
             this.Tolerance.Increment = new decimal(new int[] {
             1,
@@ -377,23 +396,18 @@ private void InitializeComponent()
             0});
             this.Tolerance.Name = "Tolerance";
             this.Tolerance.ValueChanged += new System.EventHandler(this.Tolerance_ValueChanged);
-            // 
+            //
             // chk_setalt
-            // 
+            //
             resources.ApplyResources(this.chk_setalt, "chk_setalt");
             this.chk_setalt.Checked = true;
             this.chk_setalt.CheckState = System.Windows.Forms.CheckState.Indeterminate;
             this.chk_setalt.Name = "chk_setalt";
             this.chk_setalt.UseVisualStyleBackColor = true;
             this.chk_setalt.CheckedChanged += new System.EventHandler(this.chk_setalt_CheckedChanged);
-            // 
-            // label3
-            // 
-            resources.ApplyResources(this.label3, "label3");
-            this.label3.Name = "label3";
-            // 
+            //
             // PropagationSettings
-            // 
+            //
             resources.ApplyResources(this, "$this");
             this.Controls.Add(this.chk_setalt);
             this.Controls.Add(this.groupBox1);
@@ -405,9 +419,10 @@ private void InitializeComponent()
             this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;
             this.Name = "PropagationSettings";
             this.groupBox1.ResumeLayout(false);
+            this.groupBox1.PerformLayout();
             ((System.ComponentModel.ISupportInitialize)(this.NUM_max)).EndInit();
-            ((System.ComponentModel.ISupportInitialize)(this.NUM_min)).EndInit();
             ((System.ComponentModel.ISupportInitialize)(this.Clearance)).EndInit();
+            ((System.ComponentModel.ISupportInitialize)(this.NUM_min)).EndInit();
             ((System.ComponentModel.ISupportInitialize)(this.NUM_range)).EndInit();
             ((System.ComponentModel.ISupportInitialize)(this.NUM_height)).EndInit();
             ((System.ComponentModel.ISupportInitialize)(this.Tolerance)).EndInit();
@@ -416,6 +431,12 @@ private void InitializeComponent()
 
         }
 
+        private void chk_showscale_CheckedChanged(object sender, EventArgs e)
+        {
+            Maps.Propagation.showScale = chk_showscale.Checked;
+            Console.WriteLine("showScale: " + chk_showscale.Checked);
+        }
+
         private void chk_ele_CheckedChanged(object sender, EventArgs e)
         {
             Maps.Propagation.ele_run = chk_ele.Checked;
diff --git a/Controls/PropagationSettings.resx b/Controls/PropagationSettings.resx
index d5bcabf01d..bec04ff170 100644
--- a/Controls/PropagationSettings.resx
+++ b/Controls/PropagationSettings.resx
@@ -126,7 +126,7 @@
     <value>13, 13</value>
   </data>
   <data name="chk_ele.Size" type="System.Drawing.Size, System.Drawing">
-    <value>71, 16</value>
+    <value>70, 17</value>
   </data>
   <data name="chk_ele.TabIndex" type="System.Int32, mscorlib">
     <value>0</value>
@@ -153,7 +153,7 @@
     <value>13, 36</value>
   </data>
   <data name="chk_terrain.Size" type="System.Drawing.Size, System.Drawing">
-    <value>60, 16</value>
+    <value>59, 17</value>
   </data>
   <data name="chk_terrain.TabIndex" type="System.Int32, mscorlib">
     <value>1</value>
@@ -180,7 +180,7 @@
     <value>13, 59</value>
   </data>
   <data name="chk_rf.Size" type="System.Drawing.Size, System.Drawing">
-    <value>64, 16</value>
+    <value>64, 17</value>
   </data>
   <data name="chk_rf.TabIndex" type="System.Int32, mscorlib">
     <value>2</value>
@@ -207,7 +207,7 @@
     <value>107, 36</value>
   </data>
   <data name="chk_dronedist.Size" type="System.Drawing.Size, System.Drawing">
-    <value>103, 16</value>
+    <value>97, 17</value>
   </data>
   <data name="chk_dronedist.TabIndex" type="System.Int32, mscorlib">
     <value>3</value>
@@ -234,7 +234,7 @@
     <value>107, 13</value>
   </data>
   <data name="chk_homedist.Size" type="System.Drawing.Size, System.Drawing">
-    <value>102, 16</value>
+    <value>96, 17</value>
   </data>
   <data name="chk_homedist.TabIndex" type="System.Int32, mscorlib">
     <value>4</value>
@@ -254,7 +254,37 @@
   <data name="&gt;&gt;chk_homedist.ZOrder" xml:space="preserve">
     <value>2</value>
   </data>
+  <data name="cb_showscale.AutoSize" type="System.Boolean, mscorlib">
+    <value>True</value>
+  </data>
   <assembly alias="System.Windows.Forms" name="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
+  <data name="cb_showscale.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
+    <value>NoControl</value>
+  </data>
+  <data name="cb_showscale.Location" type="System.Drawing.Point, System.Drawing">
+    <value>8, 22</value>
+  </data>
+  <data name="cb_showscale.Size" type="System.Drawing.Size, System.Drawing">
+    <value>83, 17</value>
+  </data>
+  <data name="cb_showscale.TabIndex" type="System.Int32, mscorlib">
+    <value>132</value>
+  </data>
+  <data name="cb_showscale.Text" xml:space="preserve">
+    <value>Show Scale</value>
+  </data>
+  <data name="&gt;&gt;cb_showscale.Name" xml:space="preserve">
+    <value>cb_showscale</value>
+  </data>
+  <data name="&gt;&gt;cb_showscale.Type" xml:space="preserve">
+    <value>System.Windows.Forms.CheckBox, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </data>
+  <data name="&gt;&gt;cb_showscale.Parent" xml:space="preserve">
+    <value>groupBox1</value>
+  </data>
+  <data name="&gt;&gt;cb_showscale.ZOrder" xml:space="preserve">
+    <value>0</value>
+  </data>
   <data name="label3.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
   </data>
@@ -280,13 +310,13 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label3.ZOrder" xml:space="preserve">
-    <value>0</value>
+    <value>1</value>
   </data>
   <data name="NUM_max.Location" type="System.Drawing.Point, System.Drawing">
     <value>317, 124</value>
   </data>
   <data name="NUM_max.Size" type="System.Drawing.Size, System.Drawing">
-    <value>56, 19</value>
+    <value>56, 20</value>
   </data>
   <data name="NUM_max.TabIndex" type="System.Int32, mscorlib">
     <value>132</value>
@@ -301,7 +331,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;NUM_max.ZOrder" xml:space="preserve">
-    <value>1</value>
+    <value>2</value>
   </data>
   <data name="label91.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -328,7 +358,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label91.ZOrder" xml:space="preserve">
-    <value>2</value>
+    <value>3</value>
   </data>
   <data name="label2.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -355,7 +385,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label2.ZOrder" xml:space="preserve">
-    <value>3</value>
+    <value>4</value>
   </data>
   <data name="label89.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -382,13 +412,13 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label89.ZOrder" xml:space="preserve">
-    <value>4</value>
+    <value>5</value>
   </data>
   <data name="Clearance.Location" type="System.Drawing.Point, System.Drawing">
     <value>174, 19</value>
   </data>
   <data name="Clearance.Size" type="System.Drawing.Size, System.Drawing">
-    <value>56, 19</value>
+    <value>56, 20</value>
   </data>
   <data name="Clearance.TabIndex" type="System.Int32, mscorlib">
     <value>120</value>
@@ -403,13 +433,13 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;Clearance.ZOrder" xml:space="preserve">
-    <value>5</value>
+    <value>6</value>
   </data>
   <data name="NUM_min.Location" type="System.Drawing.Point, System.Drawing">
     <value>174, 124</value>
   </data>
   <data name="NUM_min.Size" type="System.Drawing.Size, System.Drawing">
-    <value>56, 19</value>
+    <value>56, 20</value>
   </data>
   <data name="NUM_min.TabIndex" type="System.Int32, mscorlib">
     <value>130</value>
@@ -424,7 +454,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;NUM_min.ZOrder" xml:space="preserve">
-    <value>6</value>
+    <value>7</value>
   </data>
   <data name="label100.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -451,7 +481,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label100.ZOrder" xml:space="preserve">
-    <value>7</value>
+    <value>8</value>
   </data>
   <data name="label113.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -478,7 +508,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label113.ZOrder" xml:space="preserve">
-    <value>8</value>
+    <value>9</value>
   </data>
   <data name="label1.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -505,7 +535,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label1.ZOrder" xml:space="preserve">
-    <value>9</value>
+    <value>10</value>
   </data>
   <data name="label109.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -532,7 +562,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label109.ZOrder" xml:space="preserve">
-    <value>10</value>
+    <value>11</value>
   </data>
   <data name="CMB_Rotational.Items" xml:space="preserve">
     <value>0.5</value>
@@ -553,7 +583,7 @@
     <value>174, 72</value>
   </data>
   <data name="CMB_Rotational.Size" type="System.Drawing.Size, System.Drawing">
-    <value>40, 20</value>
+    <value>40, 21</value>
   </data>
   <data name="CMB_Rotational.TabIndex" type="System.Int32, mscorlib">
     <value>119</value>
@@ -568,7 +598,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;CMB_Rotational.ZOrder" xml:space="preserve">
-    <value>11</value>
+    <value>12</value>
   </data>
   <data name="label90.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -595,7 +625,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label90.ZOrder" xml:space="preserve">
-    <value>12</value>
+    <value>13</value>
   </data>
   <data name="CMB_Resolution.Items" xml:space="preserve">
     <value>2</value>
@@ -616,7 +646,7 @@
     <value>174, 45</value>
   </data>
   <data name="CMB_Resolution.Size" type="System.Drawing.Size, System.Drawing">
-    <value>40, 20</value>
+    <value>40, 21</value>
   </data>
   <data name="CMB_Resolution.TabIndex" type="System.Int32, mscorlib">
     <value>118</value>
@@ -631,7 +661,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;CMB_Resolution.ZOrder" xml:space="preserve">
-    <value>13</value>
+    <value>14</value>
   </data>
   <data name="label110.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -658,7 +688,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label110.ZOrder" xml:space="preserve">
-    <value>14</value>
+    <value>15</value>
   </data>
   <data name="CMB_Angular.Items" xml:space="preserve">
     <value>0</value>
@@ -679,7 +709,7 @@
     <value>317, 72</value>
   </data>
   <data name="CMB_Angular.Size" type="System.Drawing.Size, System.Drawing">
-    <value>40, 20</value>
+    <value>40, 21</value>
   </data>
   <data name="CMB_Angular.TabIndex" type="System.Int32, mscorlib">
     <value>0</value>
@@ -694,7 +724,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;CMB_Angular.ZOrder" xml:space="preserve">
-    <value>15</value>
+    <value>16</value>
   </data>
   <data name="label111.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -721,13 +751,13 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label111.ZOrder" xml:space="preserve">
-    <value>16</value>
+    <value>17</value>
   </data>
   <data name="NUM_range.Location" type="System.Drawing.Point, System.Drawing">
     <value>442, 73</value>
   </data>
   <data name="NUM_range.Size" type="System.Drawing.Size, System.Drawing">
-    <value>56, 19</value>
+    <value>56, 20</value>
   </data>
   <data name="NUM_range.TabIndex" type="System.Int32, mscorlib">
     <value>121</value>
@@ -742,7 +772,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;NUM_range.ZOrder" xml:space="preserve">
-    <value>17</value>
+    <value>18</value>
   </data>
   <data name="label112.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -769,13 +799,13 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label112.ZOrder" xml:space="preserve">
-    <value>18</value>
+    <value>19</value>
   </data>
   <data name="NUM_height.Location" type="System.Drawing.Point, System.Drawing">
     <value>601, 73</value>
   </data>
   <data name="NUM_height.Size" type="System.Drawing.Size, System.Drawing">
-    <value>46, 19</value>
+    <value>46, 20</value>
   </data>
   <data name="NUM_height.TabIndex" type="System.Int32, mscorlib">
     <value>122</value>
@@ -790,7 +820,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;NUM_height.ZOrder" xml:space="preserve">
-    <value>19</value>
+    <value>20</value>
   </data>
   <data name="label114.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
     <value>NoControl</value>
@@ -817,13 +847,13 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;label114.ZOrder" xml:space="preserve">
-    <value>20</value>
+    <value>21</value>
   </data>
   <data name="Tolerance.Location" type="System.Drawing.Point, System.Drawing">
     <value>174, 99</value>
   </data>
   <data name="Tolerance.Size" type="System.Drawing.Size, System.Drawing">
-    <value>56, 19</value>
+    <value>56, 20</value>
   </data>
   <data name="Tolerance.TabIndex" type="System.Int32, mscorlib">
     <value>123</value>
@@ -838,7 +868,7 @@
     <value>groupBox1</value>
   </data>
   <data name="&gt;&gt;Tolerance.ZOrder" xml:space="preserve">
-    <value>21</value>
+    <value>22</value>
   </data>
   <data name="groupBox1.Location" type="System.Drawing.Point, System.Drawing">
     <value>13, 82</value>
@@ -874,7 +904,7 @@
     <value>107, 60</value>
   </data>
   <data name="chk_setalt.Size" type="System.Drawing.Size, System.Drawing">
-    <value>95, 16</value>
+    <value>86, 17</value>
   </data>
   <data name="chk_setalt.TabIndex" type="System.Int32, mscorlib">
     <value>131</value>
diff --git a/ExtLibs/Maps/GMapMarkerElevation.cs b/ExtLibs/Maps/GMapMarkerElevation.cs
index 55ce173b8a..0c50b0323a 100644
--- a/ExtLibs/Maps/GMapMarkerElevation.cs
+++ b/ExtLibs/Maps/GMapMarkerElevation.cs
@@ -14,9 +14,13 @@ namespace MissionPlanner.Maps
 {
     public class GMapMarkerElevation : GMapMarker
     {
-        Bitmap elevation;
-
+        Bitmap elevation;
+
         private RectLatLng rect;
+        private  bool showScale;
+        private  int scaleHigh;
+        private  int scaleLow;
+        private string scaleText;
 
         public GMapMarkerElevation(byte [,] imageData, int idx, int idy, RectLatLng rect, PointLatLng currentloc)
         : base(currentloc)
@@ -27,7 +31,7 @@ public GMapMarkerElevation(byte [,] imageData, int idx, int idy, RectLatLng rect
 
             //create a new Bitmap
             Bitmap bmp = new Bitmap(idx,idy, PixelFormat.Format32bppArgb);
-            
+
             //lock it to get the BitmapData Object
             BitmapData bmData =
                 bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
@@ -44,7 +48,7 @@ public GMapMarkerElevation(byte [,] imageData, int idx, int idy, RectLatLng rect
             }
 
             //copy the bytes
-            System.Runtime.InteropServices.Marshal.Copy(pixels, 0, bmData.Scan0, (bmData.Stride/4) * bmData.Height);            
+            System.Runtime.InteropServices.Marshal.Copy(pixels, 0, bmData.Scan0, (bmData.Stride/4) * bmData.Height);
 
             //never forget to unlock the bitmap
             bmp.UnlockBits(bmData);
@@ -57,7 +61,7 @@ public GMapMarkerElevation(byte [,] imageData, int idx, int idy, RectLatLng rect
 
         static GMapMarkerElevation()
         {
-            var bmp = new Bitmap(1, 1, PixelFormat.Format8bppIndexed);
+            var bmp = new Bitmap(1, 1, PixelFormat.Format8bppIndexed);
             pal = bmp.Palette;
             //create grayscale palette
             for (int i = 0; i < 256; i++)
@@ -100,17 +104,24 @@ public static Color Rainbow(float progress)
         int ConvertColor(byte incol)
         {
             if (incol == 0 || incol == 255)
-                return transparent;
+                return transparent;
 
             return pal.Entries[incol].ToArgb();
         }
 
+        public void setScale(bool enabled, int high, int low, string text)
+        {
+            showScale = enabled;
+            scaleHigh = high;
+            scaleLow = low;
+            scaleText = text;
+        }
         public override void OnRender(IGraphics g)
         {
             base.OnRender(g);
 
             var tlll = Overlay.Control.FromLatLngToLocal(rect.LocationTopLeft);
-            var brll = Overlay.Control.FromLatLngToLocal(rect.LocationRightBottom);            
+            var brll = Overlay.Control.FromLatLngToLocal(rect.LocationRightBottom);
 
             var old = g.Transform;
 
@@ -119,8 +130,36 @@ public override void OnRender(IGraphics g)
             // maintain transperancy
             g.CompositingMode = CompositingMode.SourceOver;
 
-            g.DrawImage(elevation, tlll.X, tlll.Y, brll.X - tlll.X, brll.Y - tlll.Y);
-
+            g.DrawImage(elevation, tlll.X, tlll.Y, brll.X - tlll.X, brll.Y - tlll.Y);
+
+            if (showScale)
+            {
+                Bitmap test = new Bitmap(255, 20);
+                //fill the image with the rainbow palette
+                for (int i = 0; i < 255; i++)
+                {
+                    using (Graphics g2 = Graphics.FromImage(test))
+                    {
+
+                        Color c = Color.FromArgb(255, Rainbow(i / 255.0f));
+                        g2.FillRectangle(new SolidBrush(c), i, 0, 1, 20);
+                    }
+                }
+                //write the text "200" to the image
+                using (Graphics g2 = Graphics.FromImage(test))
+                {
+                    g2.DrawRectangle(new Pen(Color.Black), 0, 0, 255, 20);
+                    g2.DrawString(scaleHigh.ToString() + "m", new Font("Arial", 8), new SolidBrush(Color.White), 1, 0);
+                    int len = (int)g2.MeasureString(scaleLow.ToString() + "m", new Font("Arial", 8)).Width;
+                    g2.DrawString(scaleLow.ToString() + "m", new Font("Arial", 8), new SolidBrush(Color.White), 255 - len + 2, 0);
+                    //Write text at center
+                    len = (int)g2.MeasureString(scaleText, new Font("Arial", 7)).Width;
+                    g2.DrawString(scaleText, new Font("Arial", 7), new SolidBrush(Color.Black), 127 - len / 2, 0);
+
+                }
+
+                g.DrawImage(test, 0, 60, 300, 20);
+            }
             g.Transform = old;
         }
     }
diff --git a/ExtLibs/Maps/Propagation.cs b/ExtLibs/Maps/Propagation.cs
index 4b7e38b389..9b9bff1e05 100644
--- a/ExtLibs/Maps/Propagation.cs
+++ b/ExtLibs/Maps/Propagation.cs
@@ -82,7 +82,11 @@ public static bool set_alt_min_max
             get => Settings.Instance.GetBoolean("Propagation_Setalt");
             set => Settings.Instance["Propagation_Setalt"] = value.ToString();
         }
-
+        public static bool showScale
+        {
+            get => Settings.Instance.GetBoolean("Propagation_ShowScale");
+            set => Settings.Instance["Propagation_ShowScale"] = value.ToString();
+        }
         //thread run
         public bool ele_enabled { get; set; }
 
@@ -300,8 +304,8 @@ private async void elevation_calc()
 
                             var tlfinal = gMapControl1.FromLatLngToLocal(imageDataRect.LocationTopLeft);
                             var rbfinal = gMapControl1.FromLatLngToLocal(imageDataRect.LocationRightBottom);
-                            
-                            var gMapMarkerElevation = new GMapMarkerElevation(imageData, 
+
+                            var gMapMarkerElevation = new GMapMarkerElevation(imageData,
                                 (int)Math.Min(rbfinal.X - tlfinal.X, imageData.GetLength(0)), (int)Math.Min(rbfinal.Y - tlfinal.Y, imageData.GetLength(1)),
                                 new RectLatLng(imageDataRect.LocationTopLeft, imageDataRect.Size),
                                 new PointLatLngAlt(imageDataCenter));
@@ -309,6 +313,9 @@ private async void elevation_calc()
                             if (!ele_enabled)
                                 return;
 
+                            if (ele_run) gMapMarkerElevation.setScale(showScale, 0, (int)Settings.Instance.GetFloat("Propagation_Clearance", 5),"Rel to Terrain");
+                            else if (ter_run) gMapMarkerElevation.setScale(showScale, (int)max_alt, (int)min_alt, "Elevation (AMSL)");
+
                             try
                             {
                                 gMapControl1.Invoke((Action) delegate
@@ -409,7 +416,7 @@ private double normalize(double value)
             {
                 normvalue = (value - min_alt) / (max_alt - min_alt);
             }
-            
+
             if (normvalue < 0)
                 normvalue = 0;