In article . com,
Harry7 wrote:

The link coupled design of the Matchbox takes the balun (and it's
potential for power loss) out of the circuit. They are also much
simpler designs, easier to homebrew & tune.

The Z-match is another link-coupled design useful for driving balanced
feedlines. Compared to the Matchbox, its matching range may be
somewhat wider, especially if both low-Z and high-Z output links are
provided. I'm not sure how its losses compare to the Matchbox...
they'll probably vary depending on whether the Z-match uses an
air-core or toroidal-iron-core link.

--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
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