[Yaesu] Why are we so SWR-phobic

John Geiger w5td at lcisp.com
Sun Jun 18 20:39:16 EDT 2006


The Kenwood TS440 and Yaesu FT890/900 both had tuners that would load up
about anything.  I saw one ham attach a piece of speaker wire to the center
pin of a SO239, toss it out the window, and load it up on 40 using the
internal tuner from the FT900.  It is too bad that Kenwood/Yaesu/Icom can't
put the tuner from those rigs into their newer rigs.  And while they are at
it, put the NB from the FT100D into every new rig.

73s John W5TD

----- Original Message -----
From: "J. Coote" <TSCM at jps.net>
>
> Some of the mid- and high-tier radios have an "internal antenna tuner"
which
> is a
> joke.  The space taken by these tuners would be better off if occupied by
a
> PA design
> that works under wide SWR conditions- like commercial and military HF
> radios.  These
> tuners have minimal reactances and can barely tune out 1.5 or 2.0 SWR
> (resistive only) on a coax line.



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