The technology has been available for several years to enable a manufacturer
to produce a reasonably priced, small, hand-held, battery-operated, antenna
analyser which displays the sign of jX.

But the manufacturers have not yet extracted all that's available from the
market. Its too early to introduce a new model which would outclass the old.

What is needed in the market is a new manufacturer who has no history to
take advantage of.

Chinese ?