The main window
The main window of SimpleCalc is shown below.
This is where you enter most of the data for your system.
All the results in the "Results" box to the right are re-calculated every time you change one of the parameters on this (and other) screens of SimpleCalc.
In order to calculate the "Expected sun noise" the program needs a "band specific SFU" value. The program fetches todays and yesterdays measure Solar Flux data from NOAA and uses these to calculate the SFU value for the (ham) band you select. The selection of which site to use for SFU data is done on another screen (see below).
The used SFU value is VERY important as even slight changes in that will have a great impact on the "Expected sun noise" value.
You can find much more information on the SFU values, their usage and what to be aware of by studying the many articles, posts and documents about VK3UM's EMECalc.
In the menu of the main window, you will find functions that allows you to save and load setups from files.
You can also save/load the current settings using the two buttons in the lower left corner.
The "Edit comments" button is explained below.