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Re: [TenTec] OMNI VI+ Metering issue

To: <tentec@contesting.com>
Subject: Re: [TenTec] OMNI VI+ Metering issue
From: Dennis Ashworth <k7fl@arrl.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 07 Jun 2005 22:50:30 -0700
List-post: <mailto:tentec@contesting.com>
At 09:21 PM 6/6/2005, Ken Brown wrote:

> > With the OMNI RF output set at 100W on a Bird watt
> >meter  the FWD meter on the OMNI jumps to 25W, then decays down to 10W over
> >a couple seconds time.
> >
>What does the Bird watt meter do? Stay at a constant 100 watts? Or drop
>the same as the Omni meter? What about reflected power indicated by the
>Bird? How about the Ic (Collector Current) on the Omni? Does it stay
>relatively constant during key down?
>If the Bird reads 100W and the Omni meter reads only 25W, there is a bit
>of calibration error somewhere. Scratchy potentiometer or loose or dirty
>connector inside the Omni?

Great questions Ken. The answers are:

The Bird reads a reflected power of about 2 watts
The power output reading on the Bird stays a constant 100W, while the Omni 
reads 25 watts, decaying to 15 watts over 2-3 seconds. Then stays steady.
Collector current correlates well with the Bird readings and stays steady.

Dennis, K7FL

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