[TenTec] OMNI-VI Birdies

[Al Williams]

Have you noticed any improvement after the jumper installed?

k7puc

-----Original Message-----
From: Warren J. Walsh <warrenw@pentek.com>
To: Tentec@contesting.com <Tentec@contesting.com>
Date: Monday, February 28, 2000 12:59 PM
Subject: [TenTec] OMNI-VI Birdies


>
>In going back through the recent list archives, I came across several
>emails concerning OMNI Noise.  I did some private corresponding with Piotr,
>who graciously provided me with additional information on the mods he did
>to the Logic Control board.  This past weekend I removed the Logic Control
>board from my OMNI-VI+ and looked it over.  What a surprise, being a
>digital designer, I was very concerned by the quality of this board.  I
>cannot believe there were so few de-coupling capacitors on the digital
>section of this board, and the size of the power/ground traces is
>appalling.  I also cannot believe it would have increased the cost that
>much to have had a power and ground plane.  I did find that there is
>approximately a 5 Ohm resistance between VCC pin 26 and VCC pin 57 of the
>DSP chip, this is NOT good.  I soldered a jumper between these two pins.  I
>would suggest that anyone who has an OMNI-VI check this out.
>
>73
>Warren Walsh - K2BM
>
>
>==================================================================
>Warren J. Walsh (warrenw@pentek.com) Pentek, Inc.
>Design Engineer                      One Park Way
>Phone: (201) 818-5900 x 251          Upper Saddle River, NJ 07458
>Fax:   (201) 818-5941                http://www.pentek.com/
>==================================================================
>
>
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>


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