[TowerTalk] Dummy Load Rating

[R Morris]

My little brain, at this hour, thinks it's just pulse rate, on, off, at some millisecond number. "CW" and "data"  are just the mode or terms to make it happen with existing equipment.
Check the difference between  continuous duty and pulse rated tubes.

Sent from my iPhone

On Dec 4, 2015, at 19:55, Mike Fahmie via TowerTalk <towertalk at contesting.com> wrote:

Wouldn't the duty cycle be independent of the CW speed (assuming the same data being sent)?-Mike-

     From: RMorris <robrk at nidhog.net>
To: "john at kk9a.com" <john at kk9a.com> 
Cc: "towertalk at contesting.com" <towertalk at contesting.com>
Sent: Friday, December 4, 2015 11:29 AM
Subject: Re: [TowerTalk] Dummy Load Rating

I pulse tune (CW dots) , most of the time, using a scope and get a "feel" for the meter readings.
A Bird 43 being extra slow. Think I read or try the math, that 20 wpm is about 30% duty cycle.
Key down to get the real meter numbers and tweak for 2 seconds.
Put your hand or your cat on top of the dummy load and when you get a funny smell.......


Sent from my iPad

> On Dec 4, 2015, at 13:41, "john at kk9a.com" <john at kk9a.com> wrote:
> 
> I have a couple of Bird dummy loads, one is rated at 500 watts and one is
> 1000 watts, continuous duty. I have never seen an intermittent duty
> rating.  Does anyone have an idea how much power these can safely handle
> for a short duration?
> 
> John KK9A
> 
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