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Re: [TowerTalk] Circuit Board Question

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Circuit Board Question
From: Steve Hunt <steve@karinya.net>
Date: Sun, 03 Aug 2014 09:22:22 +0100
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Agreed!

However another factor in the design process is the duty-cycle of the mode. Voltage breakdown is likely to be pretty much instantaneous and mode independent; but excessive thermal dissipation will be associated with a time constant, and depend on the mode.

Then again perhaps you folks are all running 1.5kW 100% duty-cycle RTTY ;)

Steve G3TXQ



On 02/08/2014 23:23, Jim Lux wrote:

Rick pointed out that at kilowatt power levels, voltage breakdown may not be the real design limit.. thermal dissipation in the dielectric or copper might be the limit. It may not arc over, but if it melts just the same, it's no fun.


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