I am so confused now I will just stick with the manual tuner with 3 antenna ports.
Gary On 14 July 2011 13:46, Tony Estep <[email protected]> wrote: > Suppose you really wanted to decide the best design strategy for a maker of > antenna tuners. You might think as follows: > > All potential buyers have at least one antenna. Some have two, some three, > etc. As you add more outputs on the back of the tuner, you increase > potential sales, but you also increase costs. Note importantly that adding, > for example, a third output increases the cost of units sold to hams who > have only one or two antennas. Therefore, adding outputs may add some > customers among hams with many antennas, but will also lose some sales to > hams who don't want to pay for unused outputs. Moreover, adding outputs > lowers profit margin. > > The number of units sold is some function of this increment to unit cost. > And of course, total revenues is unit cost * number of units. > > The problem is to optimize profit: quantity * (price - unit cost). > Recalling > that quantity depends in part on unit cost, we can write this out and > differentiate with respect to the cost of the added outputs. The point at > which that derivative = 0 is the optimum amount to spend on extra outputs. > > In order to do this exercise with real numbers, one would have to have some > idea of the elasticity of demand with respect to price, a number that may > not necessarily be easy to pin down. Nonetheless, the point is to provide a > better framework for decision-making. > > Tony KT0NY > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- VK4FD - Motorhome Mobile Elecraft Equipment K3 #679, KPA-500 #018 Living the dream!!! ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
