[TenTec] Sherwood Presentation

[Paul Christensen]

I'm a bit confused over the data as presented in Sherwood's chart:

http://www.sherweng.com/presentation.html

For example, he shows the Orion with only the 20 kHz roofing filter at
96dB/79dB (20 kHz and 2 kHz DR) but the Orion with the 500 Hz roofing filter
is degraded to 96dB/75 dB.

In another example the Orion with 1 kHz filtering (I am assuming non-roofing
in the lower I.F.) has tested performance of 96dB/85dB @ 1 kHz but degrades
to 86dB/72dB with a 500 Hz non-roofing filter @ 1kHz.

Is it me or are the numbers counter-intuitive?

-Paul, W9AC

----- Original Message ----- 
From: "Bill Tippett" <btippett at alum.mit.edu>
To: <tentec at contesting.com>
Sent: Wednesday, May 19, 2004 7:24 AM
Subject: [TenTec] Sherwood Presentation


> Sherwood Engineering's Dayton presentation is here:
>
> http://www.sherweng.com/presentation.html
>
> available in HTML (.htm), Power Point (.ppt) and Adobe (.pdf)
>
> Does anyone know if Inrad will ever do a roofing filter
> for the Omni VI?  ;-)
>
> 73,  Bill  W4ZV
>


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