The "RF Loading" app will now run in win7, tried and tested. The fault was
the wrong chosen form in visual basic, mistaking not selecting 
"Windows Forms App (.Net Framework)".

When writing visual basic programs, if the app complies as a "exe" file,
then it works with from win7 to win11, one chap at work mentioned to me it 
worked also on an WinXp PC. This was apparently because the app was written
on a Microsoft IDE platform, now upgraded to "Visual.Net 2022". The IDE used 
is a free download from Microsoft.

The idea of the "RF loading" app, is to illustrate from a maths view point,
the found upon RF loading to a coax cable, seen by the radio, relating to the 
cable length and Ham band used.

One thing I did find, was why it is a little difficult to match a 2m band 
antenna to the cable and the radio. From the responses I heard on the bands,
others have had problems as well.

The found loading maybe perhaps viewed as either the radio view point to the
antenna loading, or the radio as the loading to the antenna itself. 

I have noticed that some SWR meters of the original type, did not show a antenna
loading impedance below 50ohms, looking on the SWR meter as a 1:1 match,
irrespective if the actual antenna load was 10ohms.

This would perhaps explain why it is usual to have a slight lift to the SWR meter
match to indicate a resistive loading a little greater than 50ohms, illustrated
as a 1:2 match perhaps.

When I came across this equation on a web search result, I thought it wise to 
mention of ham radio blog, and now as a windows "exe" app.

I have added the coax cable velocity factor to the coding app, useful to try 
and explain why one cable works differently from another manufacturers.

Have fun with your radio's.    



