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Re: [TenTec] raspy tone with OMNI-6

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] raspy tone with OMNI-6
From: Ken Brown <ken.d.brown@hawaiiantel.net>
Reply-to: ken.d.brown@hawaiiantel.net,Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sat, 22 Jul 2006 08:44:13 -1000
List-post: <mailto:tentec@contesting.com>

> Make sure you have good DC power feed connections. 
And good filtering. Old, dried out electrolytic capacitors can have 
lower than rated effective capacitance, for a while, before they cause a 
more catastrophic failure.
> If the voltage drops
> under key down load, it can create many odd effects.
If it is a filtering problem due to not enough capacitance in the power 
supply, the peak voltage may stay the same and the 120 Hz ripple will 
get worse during higher current loading on transmit. Depending upon what 
kind of voltmeter you use, you might not see this as much of a voltage 
drop. An oscilloscope would be a better way to see if this is the 
problem. Or just replace the filter capacitor(s) and see if the problem 
goes away.


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