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Re: [TenTec] Orion II and Centurion

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Orion II and Centurion
From: Ken Brown <ken.d.brown@verizon.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sat, 25 Feb 2006 10:58:01 -1000
List-post: <mailto:tentec@contesting.com>
I should have added:

When using speech processing, your peak power may actually be lower, 
depending on the capability of your amplifier high voltage power supply. 
If you can see your HV drop during key down, then you may be operating 
with a slightly lower plate voltage during the peaks when using speech 
processing. Without speech processing, the filter capacitors in the HV 
supply may charge to a slightly higher voltage between peaks, resulting 
in a higher plate voltage available when the peaks come along. Probably 
the only HV supplies that do not drop voltage significantly during key 
down are over built home brew supplies. Probably all commercially built 
amateur HV supplies that come in or with amplifiers have significant 
voltage drop under full load. So the peak power output is likely 
actually lower with speech processing, even if the average power is higher.

> It seems to me if the drive power to the Amp is the same (which it is,
> about 85 watts) the output of the Amp should be the same, plus or minus
> the difference attributable to the Speech Processor....

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