[1000mp] Inrad Keying Mod

Thu, 8 Jan 2004 11:23:50 -0600

A comparison of the CW waveforms in the QST reviews of the MP, Mark V and
the Field would indicate that Yaesu did make some improvements to the keying
circuitry in the Field. In the Field, the risetime of the first character is
obviously longer and the waveforms of the characters are more symmetrical.
Whether these improvements are enough to fully eliminate the keyclicks is
another story, but Yaesu DID make changes.

73,
Scott

----- 
From: "Barry N1EU" <[email protected]>
To: <[email protected]>
Sent: Thursday, January 08, 2004 8:21 AM
Subject: [1000mp] Inrad Keying Mod

> It's been generally recognized that Yaesu did NOT make keyclick
improvements
> in the MkV/Field.  I encourage all cw operators to install the mod, or
have
> it installed.  I've personally installed it in the MP and D, but not the
> MkV.
>
> I have some crude, but dramatic, before and after recordings of my
modified
> MP,   http://www.qsl.net/n1eu/Yaesu/MPclicks.htm and also the D,
> http://www.qsl.net/n1eu/Mods/1000Dclick.htm
>
> 73,
> Barry N1EU
>
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