[Elecraft] Automatic tuner implementation

Don Wilhelm donwilh at embarqmail.com
Mon Apr 8 11:03:09 EDT 2019


Chuck,

I believe that is quite possible, but requires a more sophisticated 
measurement of the transmission line parameters that the Forward power 
and reverse power provided by a wattmeter.

Measure the parameters of the transmission line and calculate the 
network needed to bring those parameters to a 50 ohm non-reactive load.

It took a great deal of time to do the math when I was in college, but 
we did not have computers back in the early 1960s.
The principle is the same.

73,
Don W3FPR


On 4/8/2019 10:46 AM, Chuck MacCluer wrote:
> Finding a tuner solution need not be an iterative process --- there is a
> simple two-step approach if you measure the right parameter as you tune.
> See QEX, Nov/Dec 2016, p. 3.  Chuck MacCluer w8mqw
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