Merging pictures:

N.B. "Merge pictures" can automatically download from the Internet pictures that fits your elevation data. However this example is still good to understand the way the calibration of a picture from any source can be performed.

1. Acquire elevation data for my QTH as per first example

2. Go to MapQuest web site

Enter at Latitude 45.25 and Longitude -72.35 in "Map a lat/long coordinate using decimal values" zone

Use the "Customize" button to enlarge picture size to maximum (499x500)

Once finished, select the zoom settings to produce the following picture

You then "right click" on the picture and save it on your local drive

2. Open the same picture in Radio Mobile

Measuring the width in pixels of the 1km box gives 42 pixels

The vertical size of the picture is 1km/42*500 = 11.9 km

Use "Picture properties" and enter the following values:

Do not forget to save the picture to create the ".dat" file

3. Fit map to picture

under "Edit" menu and use "Picture properties" to get the following map picture:

4. Merge picture

(multiply) under "Edit" menu. Select MapQuest picture as source and map picture as destination to get the following result:

Page principale - Home page