[1000mp] Inrad Keying Mod

[Scott Manthe]

Barry,
The waveforms of the MP (semi-break-in) and the Mark V (full-break-in) are
virtually identical and both are different than the Field (full-break-in).
So, while there is an anomoly in the comparison due to the testing (which I
was aware of), one would have to surmise that the keying method doesn't
really have much of an effect on the waveform in this case.

My point is not that Yaesu did enough to solve the keyclick problem, but
they DID do something to improve the waveform in the Field. The rise/decay
times should still be made longer, which would go a long way toward
eliminating the problem.

73,
Scott, W9AL

----- Original Message ----- 
From: "Barry N1EU" <n1eu@hotmail.com>
To: <1000mp@mailman.qth.net>
Sent: Thursday, January 08, 2004 12:23 PM
Subject: [1000mp] Inrad Keying Mod


> Scott commented "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. . ."
>
> There's an anomaly in the waveform of the first element in the MP review
> (semi-breakin).  Discounting that very first element, subsequent elements
of
> the MP and the Field look virtually identical and elicit similar
keyclicks.
> My own testing on keyclicks is done with PTT.
>
> 73,
> Barry N1EU
>
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