Which book is that?
----- Original Message -----
From: "Zivney, Terry L." <00tlzivney@bsu.edu>
To: <tentec@contesting.com>
Sent: Wednesday, July 06, 2005 18:55
Subject: [TenTec] Yaesu FT9000 oversights in QST review
>
>
>
>
> I noticed two other points not editorially mentioned in the QST review
> of the latest Click-meister
>
> rig.
>
>
>
> Figure 5 in that review shows very sharp rise and fall times; although
> the text says that menu settings
>
> exist to minimize clicks, surely the approximately 1ms rise times shown
> in the figure would produce
>
> monumental FT1k type clicks.
>
>
>
> Secondly, Figure 6 shows a horrendous transmit noise floor; close in
> noise is 20 dB higher than
>
> the Orion measured by the League. That translates to 20dB excess
> interference caused to innocent
>
> nearby listeners.
>
>
>
> OTOH, putting an attenuator in front of the Orion, or any other
> well-designed radio, will not improve
>
> the two tone dynamic range; it raises the MDS and the third order
> intercept point by the same
>
> amount. The attenuator merely moves the spurious free "window" around.
> For further information
>
> on this point, see the Leagues' classic book by DeMaw and Haywood.
>
>
>
> Terry Zivney, N4TZ/9
>
>
>
>
>
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